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LE920 Hardware User Guide 1vv0301026 Rev.11 - 2019-11-21 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 APPLICABILITY TABLE PRODUCT LE920-NA (cs1701) APPLICABILITY TABLE 1 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 2 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document, Titan assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies or omissions. Titan reserves the right to make changes to any products described herein and reserves the right to revise this document and to make changes from time to time in content hereof with no obligation to notify any person of revisions or changes. Titan does not assume any liability arising out of the application or use of any product, software, or circuit described herein; neither does it convey license under its patent rights or the rights of others. It is possible that this publication may contain references to, or information about Titan products
(machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that Titan intends to announce such Titan products, programming, or services in your country. Copyrights This instruction manual and the Titan products described in this instruction manual may be, include or describe copyrighted Titan material, such as computer programs stored in semiconductor memories or other media. Laws in the Italy and other countries preserve for Titan and its licensors certain exclusive rights for copyrighted material, including the exclusive right to copy, reproduce in any form, distribute and make derivative works of the copyrighted material. Accordingly, any copyrighted material of Titan and its licensors contained herein or in the Titan products described in this instruction manual may not be copied, reproduced, distributed, merged or modified in any manner without the express written permission of Titan. Furthermore, the purchase of Titan products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Titan, as arises by operation of law in the sale of a product. Computer Software Copyrights The Titan and 3rd Party supplied Software (SW) products described in this instruction manual may include copyrighted Titan and other 3rd Party supplied computer programs stored in semiconductor memories or other media. Laws in the Italy and other countries preserve for Titan and other 3rd Party supplied SW certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Titan or other 3rd Party supplied SW computer programs contained in the Titan products described in this instruction manual may not be copied (reverse engineered) or reproduced in any manner without the express written permission of Titan or the 3rd Party SW supplier. Furthermore, the purchase of Titan products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Titan or other 3rd Party supplied SW, except for the normal non-exclusive, royalty free license to use that arises by operation of law in the sale of a product. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 3 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Titan and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement. Copyrighted Materials Software and documentation are copyrighted materials. Making unauthorized copies is prohibited by law. No part of the software or documentation may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, without prior written permission of Titan High Risk Materials Components, units, or third-party products used in the product described herein are NOT fault-
tolerant and are NOT designed, manufactured, or intended for use as on-line control equipment in the following hazardous environments requiring fail-safe controls: the operation of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life Support, or Weapons Systems (High Risk Activities"). Titan and its supplier(s) specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities. Trademarks The Titan Logo is a registered trademark. All other product or service names are the property of their respective owners. Copyright Titan Automotive Solutions NV. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 4 of 86 Contents LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 1. Introduction ................................................. 9 1.1. Scope ..................................................... 9 1.2. Audience .................................................. 9 1.3. Contact Information, Support .............................. 9 1.4. Document Organization .................................... 10 1.5. Text Conventions ......................................... 11 1.6. Related Documents ........................................ 11 2. General Product Description ................................. 12 2.1. Overview ................................................. 12 2.2. LE920 Mechanical Dimensions .............................. 13 2.3. Weight ................................................... 13 2.4. Environmental requirements ............................... 14 2.4.1. Temperature range .......................................... 14 2.4.2. RoHS compliance ............................................ 14 2.5. Operating Frequency ...................................... 15 2.5.1. LE920-EUG(cs1550f-B), LE920-EU (cs1647c) ................... 15 EOL product ........................................................ 15 2.5.2. LE920-NAG (cs1550f-A) ...................................... 15 EOL product ........................................................ 15 2.5.3. LE920-NA (cs1701), LE920-NA AUTO S (cs1717) ................ 15 2.5.4. LE920-CN (cs1648D) ......................................... 16 EOL product ........................................................ 16 2.6. Sensitivity .............................................. 16 2.7. Conformity assessment issues .............................. 16 2.7.1. FCC/IC Regulatory notices .................................. 16 2.7.1.1. Modification statement .................................. 16 2.7.1.2. Interference statement .................................. 16 2.7.1.3. RF exposure ............................................. 17 2.7.1.4. FCC Class B digital device notice ....................... 17 2.7.1.5. Labelling Requirements for the Host device .............. 18 3. LE920 Module Connections .................................... 19 3.1. PIN-OUT .................................................. 19 3.1.1. LGA Pads Layout ............................................ 26 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 5 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 4. Hardware Commands ........................................... 27 4.1. Turning ON the LE920 ..................................... 27 4.2. Initialization and Activation state ...................... 27 4.3. Turning OFF the LE920 .................................... 28 4.3.1. Shutdown by Software Command ............................... 29 4.3.2. Hardware Shutdown .......................................... 30 4.3.3. Hardware Unconditional Restart (RESET) ..................... 31 4.3.4. Hardware Unconditional Shutdown ............................ 32 4.4. Summary of Turning ON and OFF the module ................. 33 5. Power Supply ................................................ 34 5.1. Power Supply Requirements ................................ 34 5.2. General Design Rules ..................................... 36 5.2.1. Electrical Design Guidelines ............................... 36 5.2.1.1. + 5V Input Source Power Supply Design Guidelines ........ 36 5.2.1.2. + 12V Input Source Power Supply Design Guidelines ....... 37 5.2.1.3. Battery Source Power Supply Design Guidelines ........... 39 5.2.2. Thermal Design Guidelines .................................. 40 5.2.3. Power Supply PCB Layout Guidelines ......................... 41 6. Antenna(s) .................................................. 43 6.1. GSM/WCDMA/LTE Antenna Requirements ....................... 43 6.2. GSM/WCDMA/LTE Antenna PCB line Guidelines .............. 44 6.3. GSM/WCDMA/LTE Antenna Installation Guidelines .......... 45 6.4. Antenna Diversity Requirements ........................... 45 6.5. GPS/GNSS Antenna Requirements ............................ 46 6.5.1. Combined GPS/GNSS Antenna .................................. 47 6.5.2. Linear and Patch GPS/GNSS Antenna .......................... 47 6.5.3. Front End Design Considerations ............................ 47 6.5.4. GPS/GNSS Antenna - PCB Line Guidelines ..................... 48 6.5.5. GPS/GNSS Antenna Installation Guidelines ................. 48 7. Logic Level Specifications .................................. 49 8. USB Port .................................................... 50 9. Serial Ports ................................................ 51 9.1. Modem Serial Port 1 ...................................... 52 9.2. Modem Serial Port 2 ...................................... 53 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 6 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 9.3. RS232 Level Translation .................................. 53 10. Peripheral Ports ............................................ 55 10.1. SPI Serial Peripheral Interface ...................... 55 10.2. I2C - Inter-integrated circuit ......................... 56 10.3. SDIO Secure Digital I/O .............................. 56 10.4. Wi-Fi (SDIO) control Interface ......................... 58 11. Audio Section Overview ...................................... 59 11.1. Analog Audio ........................................... 59 11.2. Digital Audio .......................................... 59 12. General Purpose I/O ......................................... 61 12.1. Logic Level Specifications ............................. 62 12.2. Using a GPIO Pad as Input .............................. 62 12.3. Using a GPIO Pad as Output ............................. 63 12.4. 12.4.1. Using the Temperature Monitor Function ................. 63 Short Description ........................................ 63 12.5. Indication of Network Service Availability ............. 64 12.6. RTC Bypass ............................................. 65 12.7. VAUX Power Output ...................................... 65 13. ADC section ................................................. 66 13.1. ADC Converter .......................................... 66 Description .............................................. 66 Using ADC Converter ...................................... 66 13.1.1. 13.1.2. 14. Mounting the module on your board ........................... 67 14.1. General ................................................ 67 14.2. Finishing & Dimensions ................................. 67 14.3. Recommended foot print for the application ............. 68 14.4. Stencil ................................................ 69 14.5. PCB Pad Design ......................................... 69 14.6. Recommendations for PCB Pad Dimensions (mm) ............ 70 14.7. 14.7.1. Solder Paste ........................................... 71 Solder Reflow ............................................ 71 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 7 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 15. Application guide ........................................... 73 15.1. Debug of the LE920 in production ....................... 73 15.2. Bypass capacitor on Power supplies ..................... 74 15.3. SIM interface .......................................... 75 SIM schematic example .................................... 75 eSIM interface guidelines ................................ 76 15.3.1. 15.3.2. 15.4. EMC recommendations .................................... 78 15.5. Download and Debug Port ................................ 79 16. Packing system .............................................. 80 16.1. Tray Drawing ........................................... 82 16.2. Moisture Sensitivity ................................... 83 17. Safety Recommendations ...................................... 84 18. Document History ............................................ 85
- Adding section 2.7 Conformity assessment issues ............................. 86
- Section 5.1 GPRS, EDGE slots corrected to 1TX+4RX ........................ 86 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 8 of 86 1. Introduction LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 1.1. Scope The aim of this document is to present possible and recommended hardware solutions useful for developing a product with the Titan LE920 module. All the features and solutions detailed are applicable to all LE920, where LE920 refers to the modules listed in the applicability table. If a specific feature is applicable to a specific product, it will be clearly highlighted. NOTICE:
The description text LE920 refers to all modules listed in the APPLICABILITY TABLE 1. 1.2. 1.3. Audience This document is intended for Titan customers, especially system integrators, about to implement their applications using our LE920 module. Contact Information, Support For general contact, technical support, to report documentation errors and to order manuals, contact Titan Technical Support via Team forge CollabNet. https://ctf.tustitan.com/
Alternatively, get in touch with your usual Titan contact. For more information about Titan visit:
http://www.tustitan.com To register for product news and announcements or for product questions contact Titan Technical Support. Our aim is to make this guide as helpful as possible. Keep us informed of your comments and suggestions for improvements. Titan appreciates feedback from the users of our information. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 9 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 1.4. Document Organization This document contains the following chapters:
Chapter 1: Introduction provides a scope for this document, target audience, contact and support information, and text conventions. Chapter 2: General Product Description gives an overview of the features of the product. Chapter 3: LE920 Module Connections deals with the pin out configuration and layout. Chapter 4: Hardware Commands instructs how to control the module via hardware Chapter 5: Power Supply deals with supply and consumption. Chapter 6: Antenna The antenna connection and board layout design are the most important parts in the full product design Chapter 7: Logic Level specifications Specific values adopted in the implementation of logic levels for this module. Chapter 8: USB Port Chapter 9: Serial Ports Chapter 10: Peripheral Ports Chapter 11: Audio Section Overview Chapter 12: General Purpose I/O How the general purpose I/O pads can be configured. Chapter 13 DAC and ADC Section Deals with these two kind of analog converters. Chapter 14: Mounting the module on your board Chapter 15: Application Guides Chapter 16: Packing System Chapter 17: Safety Recommendations Chapter 18: Document History Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 10 of 86 1.5. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Text Conventions Danger This information MUST be followed or catastrophic equipment failure or bodily injury may occur. Caution or Warning Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction. Tip or Information Provides advice and suggestions that may be useful when integrating the module. All dates are in ISO 8601 format, i.e. YYYY-MM-DD. 1.6. Related Documents LE920-EUG/NAG Product Description, 80407ST10118A LE920-EUG/NAG AT command reference guide, 80407ST10116A Titan EVK2 User Guide, 1vv0300704 Titan xE920 Audio Settings Application Note, 80404NT10095A Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 11 of 86 2. 2.1. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 General Product Description Overview The aim of this document is to present possible and recommended hardware solutions useful for developing a product with the Titan LE920 module. In this document all the basic functions of a wireless module will be taken into account; for each one of them a valid hardware solution will be suggested and usually incorrect solutions and common errors to be avoided will be highlighted. Obviously this document cannot embrace every hardware solution or every product that may be designed. Obviously avoiding invalid solutions must be considered as mandatory. Whereas the suggested hardware configurations need not be considered mandatory, the information given should be used as a guide and a starting point for properly developing your product with the Titan LE920 module. NOTICE:
The integration of the GSM/GPRS/EGPRS/WCDMA/HSPA+/LTE LE920 cellular module within user application must be done according to the design rules described in this manual. The information presented in this document is believed to be accurate and reliable. However, no responsibility is assumed by Titan Communication S.p.A. for its use, such as any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Titan Communication S.p.A. other than for circuitry embodied in Titan products. This document is subject to change without notice. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 12 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 LE920 Mechanical Dimensions The Titan LE920 module overall dimensions are:
Length:
Width:
34 mm , +/- 0.15 mm Tolerance 40 mm , +/- 0.15 mm Tolerance Thickness:
2.9 mm , +/- 0.13 mm Tolerance Weight The module weight of LE920 is about 9.0 gram. 2.2. 2.3. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 13 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 2.4. Environmental requirements 2.4.1. Temperature range Operating Temperature Range 40C ~ +85C Storage and non-operating Temperature Range 40C ~ +85C 2.4.2. RoHS compliance As a part of Titan corporate policy of environmental protection, the LE920 complies with the RoHS (Restriction of Hazardous Substances) directive of the European Union (EU directive 2011/65/EU). Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 14 of 86 2.5. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Operating Frequency The operating frequencies in GSM850, EGSM900, DCS1800, PCS1900, WCDMA & LTE modes are conformed to the 3GPP specifications. 2.5.1. LE920-EUG(cs1550f-B), LE920-EU (cs1647c) EOL product 2.5.2. LE920-NAG (cs1550f-A) EOL product 2.5.3. LE920-NA (cs1701), LE920-NA AUTO S (cs1717) Mode GSM850 PCS1900 Freq. TX (MHz) 824 ~ 849 1850 ~ 1910 Freq. RX (MHz) 869 ~ 894 1930 ~ 1990 WCDMA1900 B2 1850 ~ 1910 1930 ~ 1990 WCDMA1700 B4 1710 ~ 1755 2110 ~ 2155 WCDMA850 B5 824 ~ 849 869 ~ 894 LTE1900 B2 1850 ~ 1910 1930 ~ 1990 LTE1700 B4 1710~ 1755 2110 ~ 2155 LTE850 B5 824 ~ 849 869 ~ 894 LTE2600 B7 2500 ~ 2570 2620 ~ 2690 LTE700 B12 699 ~ 716 729 ~ 746 Channels 128 ~ 251 512 ~ 810 Tx: 9262 ~ 9538 Rx: 9662 ~ 9938 Tx: 1312 ~ 1513 Rx: 1537 ~ 1738 Tx: 4132 ~ 4233 Rx: 4357 ~ 4458 Tx: 18600 ~ 19199 Rx: 600 ~ 1199 Tx: 19950 ~ 20399 Rx: 1950 ~ 2399 Tx: 20400 ~ 20649 Rx: 2400 ~ 2649 Tx: 20750 ~ 21449 Rx: 2750 ~ 3449 Tx: 23010 ~ 23179 Rx: 5010 ~ 5179 TX - RX offset 45 MHz 80MHz 80MHz 400 MHz 45MHz 80MHz 400MHz 45MHz 120MHz 30MHz Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 15 of 86 2.5.4. LE920-CN (cs1648D) EOL product LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 2.6.
-113 dBm @ 2G Sensitivity LE920 maximum sensitivity levels are as follow:
-111 dBm @ TD-SCDMA (BW=1.6MHz)
-102 dBm @ 4G FDD (BW=5MHz)
-101 dBm @ 4G TDD (BW=5MHz)
-112 dBm @ 3G 2.7. Conformity assessment issues 2.7.1. FCC/IC Regulatory notices 2.7.1.1. Modification statement Titan has not approved any changes or modifications to this device by the user. Any changes or modifications could void the users authority to operate the equipment. Titan napprouve aucune modification apporte lappareil par lutilisateur, quelle quen soit la nature. Tout changement ou modification peuvent annuler le droit dutilisation de lappareil par lutilisateur. 2.7.1.2. Interference statement This device complies with Part 15 of the FCC Rules and Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 16 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 2.7.1.3. RF exposure This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. The antenna should be installed and operated with minimum distance of 20 cm between the radiator and your body. Antenna gain must be below:
Frequency band Antenna gain 700 MHz 850 MHz 1700 MHz 1900 MHz 2600 MHz 5,66 dBi 6,13 dBi 5,00 dBi 8,01 dBi 8,01 dBi This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Cet appareil est conforme aux limites d'exposition aux rayonnements de la IC pour un environnement non contrl. L'antenne doit tre install de faon garder une distance minimale de 20 centimtres entre la source de rayonnements et votre corps. Gain de l'antenne doit tre ci-dessous:
Bande de frquence Gain de l'antenne 700 MHz 850 MHz 1700 MHz 1900 MHz 2600 MHz 5,66 dBi 6,13 dBi 5,00 dBi 8,01 dBi 8,01 dBi L'metteur ne doit pas tre colocalis ni fonctionner conjointement avec autre antenne ou autre metteur. 2.7.1.4. FCC Class B digital device notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Increase the separation between the equipment and receiver. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 17 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21
- Consult the dealer or an experienced radio/TV technician for help. 2.7.1.5. Labelling Requirements for the Host device The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the FCC ID and IC of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows:
Contains FCC ID: 2AUECLE920NA1 Contains IC: 25635-LE920NA1 L'appareil hte doit tre tiquet comme il faut pour permettre l'identification des modules qui s'y trouvent. L'tiquette de certification du module donn doit tre pose sur l'appareil hte un endroit bien en vue en tout temps. En l'absence d'tiquette, l'appareil hte doit porter une tiquette donnant le FCC ID et le IC du module, prcd des mots Contient un module d'mission , du mot Contient ou d'une formulation similaire exprimant le mme sens, comme suit:
Contains FCC ID: 2AUECLE920NA1 Contains IC: 25635-LE920NA1 CAN ICES-3 (B) / NMB-3 (B) This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de classe B est conforme la norme canadienne ICES-003. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 18 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 LE920 Module Connections 3. 3.1. PIN-OUT Signal I/O PAD USB HS 2.0 Communication Port D19 USB_D+
F19 USB_D-
Function Type COMMENT I/O USB differential Data(+) I/O USB differential Data(-) A18 USB_VBUS AI Power sense for the internal USB transceiver Power Serial data input (TXD) from DTE I O Serial data output to DTE I I O Output for Clear to send signal (CTS) to DTE O Output for Data carrier detect signal (DCD) to DTE O Output for Data set ready signal (DSR) to DTE O Output for Ring indicator signal (RI) to DTE 1.8V 1.8V Input for Data terminal ready signal (DTR) from DTE 1.8V 1.8V Input for Request to send signal (RTS) from DTE 1.8V 1.8V 1.8V 1.8V O Auxiliary UART (TX Data to DTE) I Auxiliary UART (RX Data from DTE) O SPI Clock output I SPI data Master Input Slave output O SPI data Master Output Slave input O SPI Chip select output Asynchronous UART Prog. / data +HW Flow Control AH19 C103/TXD AF19 C104/RXD AC18 C108/DTR AA18 C105/RTS AK19 C106/CTS AE18 C109/DCD AG18 C107/DSR AJ18 C125/RING Asynchronous Auxiliary UART AB19 TXD_AUX AD19 RXD_AUX SPI Serial Peripheral Interface P19 SPI_CLK M19 SPI_MISO K19 SPI_MOSI N18 SPI_CS SDIO Secure Digital I/O AH17 SD/MMC_CMD O SD Command AD17 SD/MMC_CLK O SD Card Clock Y17 SD/MMC_DATA0 I/O SD Serial Data 0 AF17 SD/MMC_DATA1 I/O SD Serial Data 1 AB17 SD/MMC_DATA2 I/O SD Serial Data 2 W17 SD/MMC_DATA3 I/O SD Serial Data 3 U17 Wi-Fi (SDIO) control Interface AB3 WiFi_SD_CMD O Wi-Fi SD Command AM3 WiFi_SD_CLK AD3 WiFi_SD _DATA0 I/O Wi-Fi SD Serial Data 0 AF3 WiFi_SD _DATA1 I/O Wi-Fi SD Serial Data 1 O Wi-Fi SD Clock SD card detect input SD/MMC_CD I 2.2V 5.25V
@ max 5mA 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8V Active Low 1.8V 1.8V 1.8V 1.8V Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 19 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Function O Wi-Fi Reset output control / Power enable control O External SIM signal Clock O External SIM signal Reset I/O External SIM signal - Data I/O I
External SIM signal - Presence (active low) External SIM signal Power supply for the SIM Internal eSIM signal Reset AO Earphone signal output1, phase +
AO Earphone signal output1, phase -
AI Mic signal input1, phase +
AI Mic signal input1, phase -
O Digital Voice interface (WA0 master output) I Digital Voice interface (RX) O Digital Voice interface (TX) O Digital Voice interface (CLK master output) I/O Signal DVI_RX DVI_TX SIMCLK1 SIMRST1 SIMIO1 SIMIN1 SIMVCC1 ESIM_RST PAD AH3 WiFi_SD _DATA2 I/O Wi-Fi SD Serial Data 2 AK3 WiFi_SD _DATA3 I/O Wi-Fi SD Serial Data 3 Y3 WiFi_RST_Ctr SIM Card Interface 1 A10 B11 B9 B7 A8 E8 Analog Audio interface B5 EAR1_MT+
A4 EAR1_MT-
B3 MIC1_MT+
A2 MIC1_MT-
Digital Voice interface (DVI) D11 DVI_WA0 C8 D9 C10 DVI_CLK Digital I/O F9 GPIO_01 E10 GPIO_02 F11 GPIO_03 E12 GPIO_04 F13 GPIO_05 E14 GPIO_06 R18 GPIO_07 S19 GPIO_08 U19 GPIO_09 W19 GPIO_10 RF Section AD1 Antenna AU9 ANT_DIV GPS Section S1 V2 Miscellaneous Function AP1 RESET#
AS1 ON_OFF#
I/O GPIO_01 I/O GPIO_02 I/O GPIO_03 I/O GPIO_04 I/O GPIO_05 I/O GPIO_06 I/O GPIO_07 I/O GPIO_08 I/O GPIO_09 I/O GPIO_10 ANT_GPS GPS_LNA_EN I I I/O GSM/EDGE/UMTS/LTE Antenna (50 Ohm) I UMTS/LTE Antenna Diversity Input (50 Ohm) I GPS Antenna (50 Ohm) O Enable the external regulator for GPS LNA Reset Input Input Command for Power ON Type COMMENT 1.8V 1.8V 1.8V Active Low 1.8/2.85V 1.8/2.85V 1.8/2.85V 1.8V 1.8/2.85V 1.8/2.85V Audio Audio Audio Audio 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V RF RF RF 1.8V I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate I2C alternate Active Low Active Low Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 20 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 PAD AN12 SHDN_N Signal I/O Function I Unconditional Shut down Input Type COMMENT Active Low P17 VAUX/PWRMON O Supply Output for External Accessories / Power ON Monitor 1.8V F17 VRTC ADC_IN1 ADC_IN2 ADC_IN3 D5 E6 F7 AU3 STAT_LED AN10 SW_RDY Power Supply AP17 VBATT AP19 VBATT AR18 VBATT AS17 VBATT_PA AS19 VBATT_PA AT18 VBATT_PA AU17 VBATT_PA AU19 VBATT_PA A6 GND A12 GND B13 GND B15 GND B17 GND C4 GND GND C6 D3 GND D7 GND E18 GND F1 GND G18 GND H19 GND M1 GND GND N2 GND P1 P3 GND R2 GND T2 GND T18 GND U1 GND AI/
AO VRTC Backup Capacitor Power AI Analog/Digital Converter Input 1 AI Analog/Digital Converter Input 2 AI Analog/Digital Converter Input 3 O Status Indicator LED O Analog Analog Analog 1.8V Indicates that the boot sequence completed successfully 1.8V To be used to back up the RTC section
- Main Power Supply (Digital Section)
- Main Power Supply (Digital Section)
- Main Power Supply (Digital Section)
- Main Power Supply (RF Transmit Power Section)
- Main Power Supply (RF Transmit Power Section)
- Main Power Supply (RF Transmit Power Section)
- Main Power Supply (RF Transmit Power Section)
- Main Power Supply (RF Transmit Power Section)
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
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- Ground Power Power Power Power Power Power Power Power Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 21 of 86 Signal PAD V18 GND W1 GND GND X2 X18 GND Y1 GND Y19 GND AA2 GND AB1 GND AC2 GND AE2 GND AF1 GND AG2 GND AH1 GND AJ2 GND AK1 GND AK17 GND AL18 GND AM17 GND AM19 GND AN16 GND AN18 GND AP3 GND AP5 GND AP7 GND AP9 GND AP11 GND AP13 GND AP15 GND AR2 GND AR4 GND AR6 GND AR8 GND AR10 GND AR12 GND AR14 GND AR16 GND AS5 GND AS7 GND AS9 GND AS11 GND AS13 GND I/O
- Ground
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- Ground LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Function Type COMMENT Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 22 of 86 Signal PAD AS15 GND AT4 GND AT6 GND AT8 GND AT10 GND AT12 GND AT14 GND AT16 GND AU1 GND AU5 GND AU7 GND AU11 GND AU15 GND Reserved C12 Reserved A14 Reserved A16 Reserved M17 Reserved AN6 Reserved C14 Reserved D13 Reserved C16 Reserved D17 Reserved E16 Reserved C18 Reserved D15 Reserved F15 Reserved E4 Reserved F3 Reserved F5 Reserved G2 Reserved H1 Reserved H3 Reserved H17 Reserved J2 Reserved J18 Reserved K1 Reserved K3 Reserved K17 Reserved L2 Reserved L18 Reserved I/O
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Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Function Type COMMENT Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 23 of 86 Signal PAD M3 Reserved S3 Reserved S17 Reserved U3 Reserved W3 Reserved AL2 Reserved AM1 Reserved AN2 Reserved AN4 Reserved AN8 Reserved AN14 Reserved AS3 Reserved AT2 Reserved B19 Reserved AU13 Reserved E2 Reserved D1 Reserved C2 Reserved B1 Reserved I/O
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Function Type COMMENT NOTE:
When the UART signals are used as the communication port between the Host and the Modem:
- DTR pin must be connected in order to enter LE920s power saving mode.
- RI pin must be connected in order to wake the host when a call is coming during sleep mode of host.
- RTS must be connected to GND (on the module side) if flow control is not used In case UART port isnt used, all UART signals may be left disconnected NOTE:
E8 port eSIM Reset signal is available for LE920-NA AUTO S model only. For other models, E8 is internally disconnected. NOTE:
Unless otherwise specified, RESERVED pins must be left unconnected (Floating). Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 24 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The table below specifies the LE920A4 signals that must be connected even if not used by end application:
PAD AP17,AP19,AR18,AS17,AS19,AT18,AU17,AU19 A6,A12,B13,B15,B17,C4,C6,D3,D7,E18,F1,G18,H19, M1,N2,P1,P3,R2,T2,T18,U1,V18,W1,X2,X18,Y1,Y19, AA2,AB1,AC2,AE2,AF1,AG2,AH1,AJ2,AK1,AK17, AL18,AM17,AM19,AN16,AN18,AP3,AP5,AP7,AP9, AP11,AP13,AP15,AR2,AR4AR6,AR8,AR10,AR12, AR14,AR16,AS5,AS7,AS9,AS11,AS13,AS15,AT4, AT6,AT8,AT10,AT12,AT14,AT16,AU1,AU5,AU7, AU11,AU15 AS1 AN12 D19 F19 A18 AH19 AF19 AA18 AK19 AB19 AD19 AD1 AU9 S1 G2, J2, L2, F3, H3, K3, E4, AN14 Signal VBATT &
VBATT_PA Notes GND ON/OFF*
SHDN_N USB_D+
USB_D-
USB_VBUS C103/TXD C104/RXD C105/RTS C106/CTS TXD_AUX RXD_AUX Antenna ANT_DIV ANT_GPS Reserved If not used should be connected to a Test Point or an USB connector If not used should be connected to a Test Point or an USB connector If not used should be connected to a Test Point or an USB connector If not used should be connected to a Test Point If not used should be connected to a Test Point If the flow control is not used it should be connected to GND If not used should be connected to a Test Point If not used should be connected to a Test Point If not used should be connected to a Test Point If not used should be connected to a Test Point Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 25 of 86 3.1.1. LGA Pads Layout LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 26 of 86 4. 4.1. 4.2. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Hardware Commands Turning ON the LE920 To turn on LE920, the pad ON# must be tied low for at least 1 second and then released. The maximum current that can be drained from the ON# pad is 0.1 mA. A simple circuit to power on the module is illustrated below:
Initialization and Activation state Upon turning on LE920 module, The LE920 is not activated yet because the boot sequence of LE920 is still going on internally. It takes about 10 seconds to complete the initializing the module internally. For this reason, it would be useless to try to access LE920 during the Initialization state, as shown below. To reach full stability, The LE920 needs at least 15 seconds after the PWRMON goes High to become operational by reaching the activation state. During the Initialization state, any kind of AT-command is not available. DTE must wait for the Activation state before communicating with LE920. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 27 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 NOTE:
To check if the LE920 has powered on, the hardware line PWRMON must be monitored. When PWRMON goes high, the module has powered on. NOTE:
Do not use any pull up resistor on the ON# line, it is internally pulled up. Using pull up resistor may cause latch-up problems on the LE920 power regulator and improper powering on/off of the module. The line ON# must be connected only in an open collector configuration. NOTE:
In this document all the lines are inverted. Active low signals are labeled with a name that ends with "#" or with a bar over the name. NOTE:
In order to avoid a back-powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when it is powered OFF or during an ON/OFF transition. 4.3. Turning OFF the LE920 Turning off the device can be done in four different ways:
by Software command AT#SHDN by Hardware Shutdown using pad ON/OFF#
by Hardware Unconditional Reset using the RESET#
by Hardware Unconditional Shutdown using the SHDN#
When the device is shut down by software command or by hardware shutdown, it issues to the network a detach request that informs the network that the device will not be reachable any more. TIP:
To check if the device has powered off, hardware line PWRMON must be monitored. When PWRMON goes low it can be considered the device has powered off. NOTE:
In order to avoid a back-powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when it is powered OFF or during an ON/OFF transition. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 28 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 4.3.1. Shutdown by Software Command LE920 can be shut down by a software command. When a shutdown command is sent, LE920 goes into the finalization state and finally will shut down PWRMON at the end of this state. The duration of the finalization state can differ according to the situation in which the LE920 is, so a value cannot be defined. Normally it will be more than15 seconds after sending a shutdown command, DTE should monitor the status of PWRMON to observe the actual power off. TIP:
To check if the device has powered off, hardware line PWRMON must be monitored. When PWRMON goes low, the device has powered off. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 29 of 86 4.3.2. Hardware Shutdown LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 To turn OFF LE920 the pad ON/OFF# must be tied low for at least 2 seconds and then released. The same circuitry and timing for the power on must be used. When the hold time of ON/OFF# is above 2.5 seconds, LE920 goes into the finalization state and finally will shut down PWRMON at the end of this state. The period of the finalization state can differ according to the situation in which the LE920 is, so it cannot be fixed definitely. Normally it will be more than15 seconds after sending a shutdown command ; DTE should monitor the status of PWRMON to see observe the actual power off. TIP:
To check if the device has powered off, hardware line PWRMON must be monitored. When PWRMON goes low, the device has powered off. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 30 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 4.3.3. Hardware Unconditional Restart (RESET) To unconditionally restart LE920, the pad RESET# must be tied low for period between 500 -
2000 milliseconds and then released. A simple circuit to do it is:
NOTE:
Do not use any pull up resistor on the RESET# line or any totem pole digital output. Using pull up resistor may cause latch-up problems on the LE920 power regulator and improper functioning of the module. The line RESET# must be connected only in open collector configuration. NOTE:
Asserting tRESET low for period greater than 2000 milliseconds will cause the module to shut down. TIP:
The unconditional hardware Restart must always be implemented on the boards and the software must use it only as an emergency exit procedure, and not as a normal power-off operation Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 31 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 4.3.4. Hardware Unconditional Shutdown To unconditionally Shutdown LE920, the pad SHDN_N must be tied low for at least 200 milliseconds and then released. A simple circuit to do it is:
NOTE:
Do not use any pull up resistor on the SHDN_N line or any totem pole digital output. Using pull up resistor may cause latch-up problems on the LE920 power regulator and improper functioning of the module. The line SHDN_N must be connected only in open collector configuration. NOTE:
The unconditional hardware SHDN_N must always be implemented on the boards. The software must use it as an emergency exit procedure only, and not as a normal power-off operation. WARNING:
Please carefully follow the recommended procedure for shut down and power off. Not following the recommended shut-down and power off procedures might damage the device and consequently void the warranty. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 32 of 86 4.4. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Summary of Turning ON and OFF the module The chart below describes the overall sequences for Turning ON and OFF. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 33 of 86 5. Power Supply LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The power supply circuitry and board layout are a very important part in the full product design and they strongly reflect on the overall product performance. Reading carefully the requirements and the guidelines that follow will ensure a good and proper design. 5.1. Power Supply Requirements The LE920 power requirements are:
Power Supply Nominal Supply Voltage Max Supply Voltage Supply Voltage Range 3.8V 4.2V 3.3V 4.2V Mode Average(mA) Mode Description LE920 current consumption SWITCHED OFF Switched Off 40 uA AT+CFUN=1 IDLE mode WCDMA GSM LTE AT+CFUN=4 AT+CFUN=5 GSM WCDMA LTE 16 19 20 10 4.4 3.3 2.8 2.5 2.3 2.1 2.0 1.9 3.0 2.2 1.8 1.4 6.3 3.8 Module supplied but switched Off Standby mode; no call in progress Normal mode; full functionality of the module Disabled TX and RX; modules is not registered on the network DRx2 DRx3 DRx4 DRx5 DRx6 DRx7 DRx8 DRx9 DRx6 DRx7 DRx8 DRx9 Paging cycle #32 frames (0.32 sec DRx cycle) Paging cycle #64 frames (0.64 sec DRx cycle) Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 34 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 LTE (0dBm) LTE (22dBm) 2.5 1.9 203 540 Paging cycle #128 frames (1.28 sec DRx cycle) Paging cycle #256 frames (2.56 sec DRx cycle) Operative mode (LTE) LTE data call channel BW 5MHz,RB=1, TX = 0dBm) LTE data call (channel BW 5MHz,RB=1, TX = 22dBm) Operative mode (WCDMA) WCDMA Voice WCDMA HSDPA (0dBm) WCDMA HSDPA (22dBm) 185 170 470 WCDMA voice call (TX = 10dBm) WCDMA data call (Cat 14, TX = 0dBm, Max Throughput) WCDMA data call (Cat 14, TX = 22dBm, Max Throughput) GSM TX and RX mode Operative mode (GSM) GSM900 PL5 DCS1800 PL0 GPRS 1TX + 4RX GSM900 PL5 DCS1800 PL0 EDGE 1TX + 4RX GSM900 PL5 DCS1800 PL0 290 170 410 320 255 240 GSM Voice Call GPRS Sending data mode EDGE Sending data mode
* Worst/best case depends on network configuration and is not under module control. TIP:
The electrical design for the Power supply must be made ensuring that it will be capable of a peak current output of at least 2A. NOTE:
In GSM/GPRS mode, RF transmission is not continuous and is packed into bursts at a base frequency of about 216 Hz with relative current peaks as high as about 2A. Therefore the power supply must be designed to withstand these current peaks without big voltage drops;
this means that both the electrical design and the board layout must be designed for this current flow. If the layout of the PCB is not well designed, a strong noise floor is generated on the ground. This will reflect on all the audio paths producing an audible annoying noise at 216 Hz; if the voltage drops during the peaks, current absorption is too high. The device may even shut down as a consequence of the supply voltage drop. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 35 of 86 5.2. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps:
the electrical design the thermal design the PCB layout 5.2.1. Electrical Design Guidelines The electrical design of the power supply depends strongly on the power source where this power is drained. We will distinguish them into three categories:
+5V input (typically PC internal regulator output)
+12V input (typically automotive) battery 5.2.1.1.
+ 5V Input Source Power Supply Design Guidelines The desired output for the power supply is 3.8V, hence there is not a big difference between the input source and the desired output and a linear regulator can be used. A switching power supply will not be suitable because of the low drop-out requirements. When using a linear regulator, a proper heat sink must be provided in order to dissipate the power generated. A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks close to LE920, a 100F tantalum capacitor is usually suitable (on both VBATT and VBATT_PA together).. Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V. A protection diode must be inserted close to the power input, in order to protect LE920 from power polarity inversion. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 36 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 An example of linear regulator with 5V input is:
5.2.1.2.
+ 12V Input Source Power Supply Design Guidelines The desired output for the power supply is 3.8V, hence due to the big difference between the input source and the desired output, a linear regulator is unsuitable and must not be used. A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by LE920. When using a switching regulator, a 500 kHz or more switching frequency regulator is preferable because of its smaller inductor size and its faster transient response. This allows the regulator to respond quickly to the current peaks absorption. In any case, the frequency and switching design selection is related to the application to be developed due to the fact the switching frequency could also generate EMC interference. For car batteries (lead-acid accumulators) the input voltage can rise up to 15.8V and this must be kept in mind when choosing components: all components in the power supply must withstand this voltage. A bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks. A 100F tantalum capacitor is usually suitable
(on both VBATT and VBATT_PA together). Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V. For automotive applications a spike protection diode must be inserted close to the power input, in order to clean the supply of spikes. A protection diode must be inserted close to the power input, in order to protect LE920 from power polarity inversion. This can be the same diode as for spike protection. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 37 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 An example of switching regulator with 12V input is in the below schematic (it is split in 2 parts):
Switching regulator Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 38 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 5.2.1.3. Battery Source Power Supply Design Guidelines The desired nominal output for the power supply is 3.8V and the maximum allowed voltage is 4.2V, hence a single 3.7V Li-Ion cell battery type is suited for supplying the power to the Titan LE920 module. NOTE:
Do not use any Ni-Cd, Ni-MH, and Pb battery types directly connected with LE920. Their use can lead to overvoltage on LE920 and damage it. Use only Li-Ion battery types. A bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks; a 100F tantalum capacitor is usually suitable
(on both VBATT and VBATT_PA together). Make sure the low ESR capacitor (usually a tantalum one) is rated at least 10V. A protection diode must be inserted close to the power input, in order to protect LE920 from power polarity inversion. Otherwise the battery connector must be done in a way to avoid polarity inversions when connecting the battery. The battery capacity must be at least 900mAh in order to withstand the current peaks of 2A. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 39 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 5.2.2. Thermal Design Guidelines The thermal design for the power supply heat sink must be done with the following specifications:
Average current consumption during HSPA transmission @PWR level max in LE920: 640mA (TBD) Average current consumption during class12 GPRS transmission @PWR level max: 680mA (TBD) Average GPS current during GPS ON (Power Saving disabled) : 65mA (TBD) NOTE:
The average consumption during transmissions depends on the power level at which the device is requested to transmit via the network. The average current consumption hence varies significantly. NOTE:
The thermal design for the Power supply must be made keeping an average consumption at the max transmitting level during calls of 640mA(HSPA)/680mA(GPRS) rms plus 65mA rms for GPS in tracking mode. Considering the very low current during idle, especially if Power Saving function is enabled, it is possible to consider from the thermal point of view that the device absorbs significant current only during calls. If we assume that the device stays in transmission for short periods of time (let us say few minutes) and then remains for quite a long time in idle (let us say one hour), then the power supply always has time to cool down between calls and the heat sink could be smaller than the calculated for 640mA (HSPA)/680mA (GPRS) maximum RMS current. There could even be a simple chip package (no heat sink). Moreover in average network conditions the device is requested to transmit at a lower power level than the maximum and hence the current consumption will be less than 640mA (HSPA)
/680mA (GPRS) (being usually around 250mA). For these reasons the thermal design is rarely a concern and the simple ground plane where the power supply chip is placed can be enough to ensure a good thermal condition and avoid overheating. For the heat generated by the LE920, you can consider it to be during transmission 2W max during class12 GPRS upload. This generated heat will be mostly conducted to the ground plane under the LE920; you must ensure that your application can dissipate heat. In the WCDMA/HSPA mode, since LE920 emits RF signals continuously during transmission, you must pay special attention how to dissipate the heat generated. The current consumption will be up to about 640mA in HSPA (630mA in WCDMA) continuously at the maximum TX output power (23dBm). Thus you must arrange on the PCB used to mount LE920, that the area under LE920 is as large as possible. You must mount LE920 on the large ground area of your application board and make many ground vias to dissipate the heat. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 40 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Even though peak current consumption in GSM mode is higher than in WCDMA, consideration for the heat sink is more important in the case of WCDMA. As mentioned before, a GSM signal is bursty, thus, the temperature drift is more insensitive than WCDMA. Consequently, if you successfully manage heat dissipation in WCDMA mode, you dont need to think more about GSM mode. 5.2.3. Power Supply PCB Layout Guidelines As seen in the electrical design guidelines, the power supply must have a low ESR capacitor on the output to cut the current peaks and a protection diode on the input to protect the supply from spikes and polarity inversion. The placement of these components is crucial for the correct working of the circuitry. A misplaced component can be useless or can even decrease the power supply performances. The bypass low ESR capacitor must be placed close to the Titan LE920 power input pads, or in the case the power supply is a switching type, it can be placed close to the inductor to cut the ripple as long as the PCB trace from the capacitor to LE920 is wide enough to ensure a drop-less connection even during the 2A current peaks. The protection diode must be placed close to the input connector where the power source is drained. The PCB traces from the input connector to the power regulator IC must be wide enough to ensure no voltage drops occur during the 2A current peaks. Note that this is not done to save power loss but especially to avoid the voltage drops on the power line at the current peaks frequency of 216 Hz that will reflect on all the components connected to that supply (also introducing the noise floor at the burst base frequency.) For this reason while a voltage drop of 300-400 mV may be acceptable from the power loss point of view, the same voltage drop may not be acceptable from the noise point of view. If your application does not have audio interface but only uses the data feature of the Titan LE920, then this noise is not so disturbing and power supply layout design can be more forgiving. The PCB traces to LE920 and the bypass capacitor must be wide enough to ensure no significant voltage drops occur when the 2A current peaks are absorbed. This is needed for the same above-mentioned reasons. Try to keep this trace as short as possible. The PCB traces connecting the switching output to the inductor and the switching diode must be kept as short as possible by placing the inductor and the diode very close to the power switching IC (only for switching power supply). This is done in order to reduce the radiated field (noise) at the switching frequency (usually 100-500 kHz). The use of a good common ground plane is suggested. The placement of the power supply on the board must be done in a way to guarantee that the high current return paths in the ground plane are not overlapping any noise sensitive circuitry such as the microphone amplifier/buffer or earphone amplifier. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 41 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The power supply input cables must be kept separate from noise sensitive lines such as microphone/earphone cables. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 42 of 86 6. Antenna(s) LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The antenna connection and board layout design are the most important parts in the full product design and they strongly reflect on the products overall performance. Read carefully and follow the requirements and the guidelines for a good and proper design. 6.1. GSM/WCDMA/LTE Antenna Requirements The antenna for a Titan LE920 device must fulfill the following requirements:
GSM / WCDMA/ LTE Antenna Requirements Frequency range Depending on frequency band(s) provided by the network operator, the customer must use the most suitable antenna for that/those band(s) LE920-EU LE920-NAG GSM850 : 70 MHz GSM900 : 80 MHz GSM1800(DCS) : 170 MHz GSM1900(PCS) : 140 MHz WCDMA band I(2100) : 250 MHz WCDMA band III(1800) : 170 MHz WCDMA band VIII(900) : 80 MHz LTE Band I(2100) : 250 MHz LTE band III(1800) : 170 MHz LTE Band VII(2600) : 190 MHz LTE Band VIII(900) : 80 MHz LTE Band XX(800) : 71 MHz GSM850 : 70 MHz GSM900 : 80 MHz GSM1800(DCS) : 170 MHz GSM1900(PCS) : 140 MHz WCDMA band I(2100) : 250 MHz WCDMA band II(1900) : 140 MHz WCDMA band IV(1700) : 445 MHz WCDMA band V(850) : 70 MHz WDCMA band VI(800): 70MHz LTE Band I(2100) : 250 MHz LTE Band II(1900) : 140 MHz LTE Band IV(1700) : 445 MHz LTE Band V (850) : 70 MHz LTE Band XVII(700) : 42 MHz LE920-NA GSM850 : 70 MHz GSM1900(PCS) : 140 MHz WCDMA band II(1900) : 140 MHz WCDMA band IV(1700) : 445 MHz WCDMA band V(850) : 70 MHz LTE Band II(1900) : 140 MHz LTE Band IV(1700) : 445 MHz LTE Band V (850) : 70 MHz LTE Band VII(2600) : 190 MHz LTE Band XVII(700) : 42 MHz LTE Band XII(700) : 42 MHz Bandwidth Gain Gain < 3dBi 50 Ohm Impedance Input power > 33dBm(2 W) peak power in GSM
> 24dBm Average power in WCDMA & LTE
<= 10:1 VSWR absolute max VSWR recommended
<= 2:1 When using the Titan LE920, since theres no antenna connector on the module, the antenna must be connected to the LE920 antenna pad (AD1) by means of a transmission line implemented on the PCB. In the case that the antenna is not directly connected to the antenna pad of the LE920, then a PCB line is required in order to connect with it or with its connector. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 43 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 This transmission line shall fulfill the following requirements:
Antenna Line on PCB Requirements Characteristic Impedance Max Attenuation 50Ohm 0.3dB Coupling with other signals shall be avoided Cold End (Ground Plane) of antenna shall be equipotential to the LE920 ground pads Furthermore if the device is developed for the US and/or Canada market, it must comply with the FCC and/or IC approval requirements:
This device is to be used only for mobile and fixed application. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. OEM integrators must ensure that the end user has no manual instructions to remove or install the LE920 module. Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed operating configurations. 6.2. GSM/WCDMA/LTE Antenna PCB line Guidelines Make sure that the transmission lines characteristic impedance is 50ohm. Keep the line on the PCB as short as possible since the antenna line loss should be less than around 0.3dB. Line geometry should have uniform characteristics, constant cross section, avoid meanders and abrupt curves. Any suitable geometry/structure can be used for implementing the printed transmission line affecting the antenna. If a Ground plane is required in the line geometry, that plane must be continuous and sufficiently extended so the geometry can be as similar as possible to the related canonical model. Keep, if possible, at least one layer of the PCB used only for the Ground plane; if possible, use this layer as reference Ground plane for the transmission line. It is wise to surround (on both sides) the PCB transmission line with Ground. Avoid having other signal tracks facing directly the antenna line track. Avoid crossing any un-shielded transmission line footprint with other tracks on different layers. The Ground surrounding the antenna line on the PCB must be strictly connected to the main Ground plane by means of via-holes (once per 2mm at least) placed close to the ground edges facing the line track. Place EM-noisy devices as far as possible from LE920 antenna line. Keep the antenna line far away from the LE920 power supply lines. If EM-noisy devices are present on the PCB hosting the LE920, such as fast switching ICs, take care to shield them with a metal frame cover. If EM-noisy devices are not present around the line, using geometries like Micro strip or Grounded Coplanar Waveguide is preferred since they typically ensure less attenuation Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 44 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 compared to a Strip line having the same length. 6.3. GSM/WCDMA/LTE Antenna Installation Guidelines Install the antenna in a location with access to the network radio signal. The antenna must be installed such that it provides a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter;
The antenna must not be installed inside metal cases;
The antenna must also be installed according to the antenna manufacturers instructions. 6.4. Antenna Diversity Requirements This product includes an input for a second RX antenna to improve the radio sensitivity. The function is called Antenna Diversity. ANTENNA REQUIREMENTS Frequency range Depending on frequency band(s) provided by the network operator, the customer shall use the most suitable antenna for that/those band(s) LE920-EU LE920-NA Bandwidth WCDMA band I(2100) : 250 MHz WCDMA band III(1800) : 170 MHz WCDMA band VIII(900) : 80 MHz LTE Band I(2100) : 250 MHz LTE band III(1800) : 170 MHz LTE Band VII(2600) : 190 MHz LTE Band VIII(900) : 80 MHz LTE Band XX(800) : 71 MHz Impedance VSWR recommended 2:1 50 WCDMA band I(2100) : 250 MHz WCDMA band II(1900) : 140 MHz WCDMA band IV(AWS) : 445 MHz WCDMA band IV(850) : 445 MHz WCDMA band V(850) : 70 MHz WDCMA band VI(800): 55MHz LTE Band I(2100) : 250 MHz LTE Band II(1900) : 140 MHz LTE Band IV(1700) : 445 MHz LTE Band V (850) : 70 MHz Band XVII(700) : 42 MHz Band XII(700) : 42 MHz When using the Titan LE920, since theres no antenna connector on the module, the antenna must be connected to the LE920 antenna pad (AU9) by means of a transmission line implemented on the PCB. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 45 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 In the case that the antenna is not directly connected at the antenna pad of the LE920, then a PCB line is required in order to connect with it or with its connector. The second Rx antenna should not be located in the close vicinity of the main antenna. In order to improve Diversity Gain, Isolation and reduce mutual interaction, the two antennas should be located at the maximum reciprocal distance possible, taking into consideration the available space within the application. NOTE:
If the RX Diversity is not used/connected, disable the Diversity functionality using the AT#RXDIV command (refer to the AT User guide) and leave the Diversity pad AU9 unconnected. 6.5. GPS/GNSS Antenna Requirements LE920 supports an active antenna. It is recommended to use antennas as follow:
An external active antenna (GPS only). An external active antenna, GNSS pre-filter. NOTE:
Released models LE920-NA cs1550f-A & LE920-EU cs1550f-B include internal LNA
(13.5dB gain typ.). For LE920-NA cs1550f-A & LE920-EU cs1550f-B models it is recommended to use:
An external passive antenna (GPS only). An external passive antenna, GNSS pre-filter. NOTE:
The external GNSS pre-Filter shall be required for GLONASS application. GNSS pre-Filter requirement shall fulfill the following requirements. Source and Load Impedance = 50Ohm Insertion Loss (1575.42 1576.42MHz) = 1.4dB (Max) Insertion Loss (1565.42 1585.42MHz) = 2.0dB (Max) Insertion Loss (1597.5515 1605.886MHZ) = 2.0dB (Max) Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 46 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 NOTE:
It is recommended to add a DC block to the customers GPS application in order to prevent damage to the LE920 due to unwanted DC voltage WARNING:
The LE920 software is implemented differently depending on the configurations of an external device. Please refer to the AT command User Guide in detail. 6.5.1. Combined GPS/GNSS Antenna The use of combined RF/GPS/GNSS antenna is NOT recommended. This solution could generate extremely poor GPS/GNSS reception. In addition, the combination of antennas requires an additional diplexer, which adds significant power losses in the RF path. 6.5.2. Linear and Patch GPS/GNSS Antenna Using this type of antenna introduces at least 3dB of loss compared to a circularly polarized
(CP) antenna. Having a spherical gain response instead of a hemispherical gain response could aggravate the multipath behaviour & create poor position accuracy. 6.5.3. Front End Design Considerations When using the Titan LE920, since theres no antenna connector on the module, the antenna must be connected to the LE920 through the PCB to the antenna pad. In the case that the antenna is not directly connected at the antenna pad of the LE920, then a PCB line is required. This line of transmission shall fulfill the following requirements:
Antenna Line on PCB Requirements Characteristic Impedance 50Ohm Max Attenuation 0.3dB Coupling with other signals shall be avoided Cold End (Ground Plane) of antenna shall be equipotential to the LE920 ground pads Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 47 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Furthermore if the device is developed for the US and/or Canada market, it must comply with the FCC and/or IC requirements. This device is to be used only for mobile and fixed application. 6.5.4. GPS/GNSS Antenna - PCB Line Guidelines Ensure that the antenna line impedance is 50ohm. Keep the line on the PCB as short as possible to reduce the loss. The antenna line must have uniform characteristics, constant cross section, avoiding meanders and abrupt curves. Keep one layer of the PCB used only for the Ground plane; if possible. Surround (on the sides, over and under) the antenna line on the PCB with Ground. Avoid having other signal tracks directly facing the antenna line track. The Ground around the antenna line on the PCB must be strictly connected to the main Ground plane by placing vias at least once per 2mm. Place EM-noisy devices as far as possible from LE920 antenna line. Keep the antenna line far away from the LE920 power supply lines. If EM-noisy devices are around the PCB hosting the LE920, such as fast switching ICs, ensure shielding the antenna line by burying it inside the layers of PCB and surrounding it with Ground planes; or shield it with a metal frame cover. If you do not have EM-noisy devices around the PCB of LE920, use a Micro strip line on the surface copper layer for the antenna line. The line attenuation will be lower than a buried one. 6.5.5. GPS/GNSS Antenna Installation Guidelines The LE920, due to its sensitivity characteristics, is capable of performing a fix inside buildings. (In any case the sensitivity could be affected by the building characteristics i.e. shielding) The antenna must not be co-located or operating in conjunction with any other antenna or transmitter. The antenna shall not be installed inside metal cases. The antenna shall also be installed according to the antenna manufacturers instructions. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 48 of 86 7. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Logic Level Specifications Where not specifically stated, all the interface circuits work at 1.8V CMOS logic levels. The following table shows the logic level specifications used in the Titan LE920 interface circuits:
NOTE:
Do not connect LE920s digital logic signal directly to OEMs digital logic signal with a level higher than 2.7V for 1.8V CMOS signals. For 1.8V CMOS signals:
Absolute Maximum Ratings - Not Functional Parameter Input level on any digital pin when on Input voltage on analog pins when on LE920 Min
-0.3V
-0.3V Max
+2.16V
+2.16 V Operating Range - Interface levels (1.8V CMOS) Level Input high level Input low level Output high level Output low level LE920 Min 1.5V
-0.3V 1.35V 0V Max 2.1V 0.5V 1.8V 0.45V Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 49 of 86 8. USB Port LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The LE920 module includes a Universal Serial Bus (USB) transceiver, which operates at USB high-speed (480Mbits/sec). It can also work with USB full-speed (12Mbits/sec) hosts It is compliant with the USB 2.0 specification and can be used control and data transfers as well as for diagnostic monitoring and firmware update. In fact firmware update by the host is only possible via USB and not possible via UART. The reason is that Titan consider it impractical to transfer firmware binaries exceeding 100Mb via UART. The USB port on the Titan LE920 is typically the main interface between the module and OEM hardware. The USB_DPLUS and USB_DMINUS signals have a clock rate of 480MHz. The signal traces should be routed carefully. Trace lengths, number of vias and capacitive loading should be minimized. The impedance value should be as close as possible to 90 Ohms differential. The table below describes the USB interface signals:
LE920 Pad No. A18 F19 D19 Signal USB_VBUS USB_D-
USB D+
Usage Power sense for the internal USB transceiver. Acceptable input voltage range 2.2V 5.25V @ max 5mA consumption Minus (-) line of the differential, bi-directional USB signal to/from the peripheral device Plus (+) line of the differential, bi-directional USB signal to/from the peripheral device NOTE:
- USB_VBUS input power is internally used to detect the USB port and start enumeration process. It isnt used for supplying internal LE920 USB HW block. Therefore, only maximum of 5mA is required.
- The USB_VBUS is internally pulled-down by 10k ohm resistor. Customer host application must take into account voltage divider with the internal pull down resistor meeting the minimum of 2.2V input, in case that a serial resistor is placed on USB_VBUS signal. NOTE:
In the case of not using USB communication, it is still highly recommended to place an optional USB connector in the application board. USB physical communication is needed in the case of SW update Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 50 of 86 9. Serial Ports LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The serial port on the Titan LE920 is typically a secondary interface between the module and OEM hardware. Two serial ports are available on the module:
MODEM SERIAL PORT 1(Main) MODEM SERIAL PORT 2 (Auxiliary) Several configurations can be designed for the serial port on the OEM hardware. The most common are:
RS232 PC com port;
Microcontroller UART @ 1.8V (Universal Asynchronous Receive Transmit) ;
Microcontroller UART @ 5V or other voltages different from 1.8V. Depending on the type of serial port on the OEM hardware, a level translator circuit may be needed to make the system work. The only configuration that does not need a level translation is the 1.8V UART. The serial port 1 on LE920 is a +1.8V UART with all the 7 RS232 signals. It differs from the PC-RS232 in signal polarity (RS232 is reversed) and levels. The Serial port 2 is a +1.8V Auxiliary UART. The levels for LE920 UART are the CMOS levels:
Absolute Maximum Ratings -Not Functional Parameter Input level on any digital pin when on Input voltage on analog pins when on LE920 Min
-0.3V
-0.3V Max
+2.16 V
+2.16 V Operating Range - Interface levels Level Input high level Input low level Output high level Output low level LE920 Min 1.5V
-0.3V 1.35V 0V Max 2.1V 0.5V 1.8V 0.45V Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 51 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 9.1. Modem Serial Port 1 Serial port 1 on the LE920 is a +1.8V UART with all 7 RS232 signals. It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels. RS232 Pin Number 1 2 3 4 5 6 7 8 9 Signal DCD -
dcd_uart RXD -
Tx_uart TXD -
Rx_uart DTR -
dtr_uart GND DSR -
dsr_uart RTS -
rts_uart CTS -
cts_uart RI -
ri_uart LE920 Pad Number Name Usage AF19 AE18 Data Carrier Detect Transmit line
*see Note Receive line
*see Note Data Terminal Ready A6, A12, B13, B15. Ground AH19 AC18 AG18 AA18 AK19 AJ18 Data Set Ready Request to Send Clear to Send Ring Indicator Output from the LE920 that indicates the carrier presence Output transmit line of the LE920 UART Input receive of the LE920 UART Input to the LE920 that controls the DTE READY condition ground Output from the LE920 that indicates the module is ready Input to the LE920 that controls the Hardware flow control Output from the LE920 that controls the Hardware flow control Output from the LE920 that indicates the Incoming call condition NOTE:
In order to avoid a back-powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when it is powered OFF or during an ON/OFF transition. TIP:
For minimum implementations, only the TXD and RXD lines need be connected, the other lines can be left open provided a software flow control is implemented. NOTE:
According to V.24, RX/TX signal names are referred to the application side, therefore on the LE920 side these signal are in the opposite direction: TXD on the application side will be connected to the receive line (here named TXD/ rx_uart ) of the LE920 serial port and vice versa for RX. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 52 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 9.2. Modem Serial Port 2 Serial port 2 on the LE920 is a +1.8V UART with only the RX and TX signals. The signals of the LE920 serial port are:
PAD Signal Type AB19 TXD_AUX O Auxiliary UART (TX Data to DTE) 1.8V AD19 RXD_AUX I Auxiliary UART (RX Data to DTE) 1.8V Function I/O COMMENT NOTE:
In order to avoid a back-powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when it is powered OFF or during an ON/OFF transition. 9.3. RS232 Level Translation In order to interface the Titan LE920 with a PC com port or a RS232 (EIA/TIA-232) application a level translator is required. This level translator must:
Invert the electrical signal in both directions;
Change the level from 0/1.8V to +15/-15V. Actually, the RS232 UART 16450, 16550, 16650 & 16750 chipsets accept signals with lower levels on the RS232 side (EIA/TIA-562), allowing a lower voltage-multiplying ratio on the level translator. Note that the negative signal voltage must be less than 0V and hence some sort of level translation is always required. The simplest way to translate the levels and invert the signal is by using a single chip level translator. There are a multitude of them, differing in the number of drivers and receivers and in the levels (be sure to get a true RS232 level translator not a RS485 or other standards). By convention the driver is the level translator from the 0-1.8V UART to the RS232 level. The receiver is the translator from the RS232 level to 0-1.8V UART. In order to translate the whole set of control lines of the UART you will need:
5 drivers 3 receivers NOTE:
The digital input lines working at 1.8V CMOS have an absolute maximum input voltage of 2.7V; therefore the level translator IC shall not be powered by the +3.8V supply of the module. Instead, it must be powered from a +1.8V (dedicated) power supply. This is because in this way the level translator IC outputs on the module side (i.e. LE920 inputs) will work at +3.8V interface levels, damaging the module inputs. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 53 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 An example of RS232 level adaption circuitry could be accomplished using a MAXIM transceiver (MAX218). In this case the chipset is capable of translating directly from 1.8V to the RS232 levels (Example on 4 signals only). NOTE:
In this case the length of the lines on the application must be taken into account to avoid problems in the case of High-speed rates on RS232. The RS232 serial port lines are usually connected to a DB9 connector with the following layout: signal names and directions are named and defined from the DTE point of view Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 54 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 10. Peripheral Ports In addition to Titan LE920 serial ports, the LE920 supports the following peripheral ports:
SPI Serial Peripheral Interface I2C - Inter-integrated circuit 2 x SDIO Secure Digital I/O 10.1. SPI Serial Peripheral Interface The LE920 SPI supports the following:
Master Mode only 1.8V CMOS level Up to 26MHz clock rate NOTE:
SPI is supported only on the Linux side. LE920 can support Master mode only, and cant be configured as slave mode. PAD Signal P19 SPI_CLK M19 SPI_MISO K19 SPI_MOSI N18 SPI_CS I/O Function O SPI Clock output I SPI data Master Input Slave output O SPI data Master Output Slave input O SPI Chip select output Type 1.8V 1.8V 1.8V 1.8V COMMENT LE920 (Master) Host (Slave) SPI_CS SPI_CLK SPI_MOSI SPI_MISO SPI_CS SPI_CLK SPI_MOSI SPI_MISO Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 55 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 10.2. I2C - Inter-integrated circuit The LE920 I2C is an alternate function of our GPIO 1-10 pins. Any GPIO can be configured as SCL and SDA Available only from Modem side as SW emulation of I2C on GPIO lines. LE920 supports I2C Master Mode only. NOTE:
I2C is supported only on from Modem side as SW emulation of I2C on GPIO lines. Refer to LE920 AT SW manual for command settings 10.3. SDIO Secure Digital I/O The LE920 is used to support standard SD/MMC memory cards with the following:
Interface with SD/MMC memory cards up to 2 TB Max clock: 50 MHz SDR at 1.8 V, Max Data: 25MB/s, MMC standard: MMC 4.4 type 3 SDR at 1.8 V; SD standard: UHS-SDR25 at 1.8 V Max clock: 50 MHz SDR at 2.95 V, Max Data: 25MB/s, MMC standard: MMC 4.4 type 3 SDR at 2.95 V; SD standard: DS, HS at 2.95 I/O Function PAD Signal AH17 SD/MMC_CMD O SD Command AD17 SD/MMC_CLK O SD Card Clock Y17 SD/MMC_DATA0 I/O SD Serial Data 0 AF17 SD/MMC_DATA1 I/O SD Serial Data 1 AB17 SD/MMC_DATA2 I/O SD Serial Data 2 W17 SD/MMC_DATA3 I/O SD Serial Data 3 U17 SD/MMC_CD I SD card detect input Type 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8/2.95V 1.8V COMMENT Active Low Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 56 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Connection diagram of the SD interface is shown below:
Ext, Card supply GND C=100nF microSD 1 0 K 1 0 K 1 0 K 1 0 K 1 0 K DATA2 DATA3 CMD VDD CLK VSS DATA0 DATA1 SW1 SW2 LE920 SDIO Interface SD/MMC_DATA2 SD/MMC_DATA3 SD/MMC_CMD SD/MMC_CLK SD/MMC_DATA0 SD/MMC_DATA1 SD/MMC_CD GND GND NOTE:
1. SDIO is supported only on the Linux side. 2. SD/MMC card supply shall be provided by the Host application board. LE920 doesnt provide a dedicated SD/MMC card supply. 3. Pull-up resistors should be place on the application host board 4. Card detection input has an internal pull-up resistor Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 57 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Wi-Fi (SDIO) control Interface The LE920 has an integrated SW driver for supporting Qualcomm QCA6053 Wi-Fi chipset via a 2nd dedicated SD bus interface. The secondary SD bus interface can be used only with the QCA6053 chipset, and cant be used as external SD/MMC card connection. For detailed explanation, refer to Titan 80407NT11289A - xE920 - Wi-Fi interface Application Note 10.4. I/O Function O Wi-Fi SD Clock PAD Signal AB3 WiFi_SD_CMD O Wi-Fi SD Command AM3 WiFi_SD_CLK AD3 WiFi_SD _DATA0 I/O Wi-Fi SD Serial Data 0 AF3 WiFi_SD _DATA1 I/O Wi-Fi SD Serial Data 1 AH3 WiFi_SD _DATA2 I/O Wi-Fi SD Serial Data 2 AK3 WiFi_SD _DATA3 I/O Wi-Fi SD Serial Data 3 Y3 WiFi_RST_Ctr O Wi-Fi Reset output control / Power enable control Type 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V 1.8V COMMENT Active Low WARNING:
Wi-Fi (SDIO) control interface is fully supported in LE920-EU and LE920-NA. However, in some cases isnt supported in LE920-EUG and LE920-NAG. If Wi-Fi control is required for LE920-NAG or LE920-NAG, please contact your local Titan rep. or contact customer support for specific ordering info. NOTE:
Wifi_RST_Ctr should have an optional Pull-up resistor to 1.8V on the host application, to disable Wi-Fi reset function if needed Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 58 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 11. Audio Section Overview 11.1. The LE920 module support analog and digital audio interfaces. Analog Audio The LE920 module provides single analog audio path transmitting and receiving. Please refer to the xE920_Audio_Settings_Application_Note, 80404NT10095A WARNING:
LE920 Analog audio implementation uses an internal CODEC. LE920 internal codec uses the same external LE920 digital Audio interface signals Therefore, applications that are using analog audio, must make sure that the digital audio interface shall be either not connected, or Hi-Z, or input to Host application. 11.2. Digital Audio LE920 can be connected to an external codec through the digital interface. The product provides one Digital Audio Interface (DVI) on the following Pins:
PAD Signal I/O Function D11 DVI_WA0 O Digital Audio Interface (WA0) C8 D9 DVI_RX DVI_TX I O Digital Audio Interface (RX) Digital Audio Interface (TX) C10 DVI_CLK O Digital Audio Interface (CLK) LE920 DVI supports PCM master 2048khz short frame PCM_SYNC Type COMMENT B-PD 1.8V B-PD 1.8V B-PD 1.8V B-PD 1.8V PCM_DOUT PCM_CLK PCM_DIN Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 59 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 60 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 12. General Purpose I/O The general-purpose I/O pads can be configured to act in three different ways:
input output alternate function (internally controlled) Input pads can only be read and report the digital value (high or low) present on the pad at the read time; output pads can only be written or queried and set the value of the pad output; an alternate function pad is internally controlled by the LE920 firmware and acts depending on the function implemented. The following GPIOs are available on the LE920. PAD F9 E10 F11 E12 F13 E14 R18 S19 U19 W19 Signal GPIO_01 GPIO_02 GPIO_03 GPIO_04 GPIO_05 GPIO_06 GPIO_07 GPIO_08 GPIO_09 GPIO_10 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O Function Type Drive Strength Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V Configurable GPIO CMOS 1.8V 2mA 2mA 2mA 2mA 2mA 2mA 2mA 2mA 2mA 2mA NOTE:
In order to avoid a back-powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when it is powered OFF or during an ON/OFF transition. NOTE:
LE920 GPIO can also be used as alternate I2C function. Refer to I2C section Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 61 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 12.1. Logic Level Specifications Where not specifically stated, all the interface circuits work at 1.8V CMOS logic levels. The following table shows the logic level specifications used in the LE920 interface circuits:
For 1,8V signals:
Absolute Maximum Ratings -Not Functional Parameter Input level on any digital pin when on Input voltage on analog pins when on LE920 Min
-0.3V
-0.3V Max
+2.16 V
+2.16 V Operating Range - Interface levels (1.8V CMOS) Level Input high level Input low level Output high level Output low level LE920 Min 1.5V
-0.3V 1.35V 0V Max 2.1V 0.5V 1.8V 0.45V 12.2. Using a GPIO Pad as Input The GPIO pads, when used as inputs, can be connected to a digital output of another device and report its status, provided this device has interface levels compatible with the 1.8V CMOS levels of the GPIO. If the digital output of the device is connected with the GPIO input, the pad has interface levels different from the 1.8V CMOS. It can be buffered with an open collector transistor with a 47K pull-up resistor to 1.8V. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 62 of 86 12.3. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Using a GPIO Pad as Output The GPIO pads, when used as outputs, can drive 1.8V CMOS digital devices or compatible hardware. When set as outputs, the pads have a push-pull output and therefore the pull-up resistor may be omitted. 12.4. Using the Temperature Monitor Function 12.4.1. Short Description The Temperature Monitor is a function of the module that permits to control its internal temperature and if properly set (see the #TEMPMON command on AT Interface guide) it raises to High Logic level a GPIO when the maximum temperature is reached. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 63 of 86 12.5. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Indication of Network Service Availability The STAT_LED pin status shows information on the network service availability and call status. In the LE920 modules, the STAT_LED usually needs an external transistor to drive an external LED. Because of the above, the status indicated in the following table is reversed with respect to the pin status:
LED status Permanently off Fast blinking
(Period 1s, Ton 0,5s) Slow blinking
(Period 3s, Ton 0,3s) Permanently on Device Status Device off Net search / Not registered /
turning off Registered full service a call is active Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 64 of 86 12.6. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 RTC Bypass The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the digital part, allowing having only the RTC operating when all the other parts of the device are turned off. If maintaining internal RTC block is needed, it recommended to connect a backup capacitor or a coin cell to this pin (valid range from 2.5V to 3.2V), otherwise, it can be left unconnected Operating Modes:
1. LE920 has a valid VBAT supply, and the unit is turned ON RTC block supply will be generated from main VBAT supply, and the VRTC pin will output the VRTC supply, charging external coin cell or capacitor. 2. LE920 has no VBAT connected The External coin cell or capacitor will maintain VRTC supply, keeping the internal RTC unit block operational. NOTE:
NO devices may be powered from this pin. 12.7. VAUX Power Output A regulated power supply output is provided in order to supply small devices from the module. This output is active when the module is ON and goes OFF when the module is shut down. The operating range characteristics of the supply are:
Operating Range VAUX power supply Min 1.75V Typical 1.80V Output voltage Output current Output bypass capacitor
(Inside the module) Max 1.85V 100mA 1F Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 65 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 13. ADC section 13.1. ADC Converter 13.1.1. Description The on board ADCs are 8-bit converters. They are able to read a voltage level in the range of 0-2 volts applied on the ADC pin input and store and convert it into 8 bit word. Input Voltage range AD conversion Resolution Min 0
Max 1.7 8
< 6.6 Units Volt bits mV The LE920 module provides 3 Analog to Digital Converters. 13.1.2. Using ADC Converter An AT command is available to use the ADC function. The command is AT#ADC=1,2. The read value is expressed in mV Refer to SW User Guide or AT Commands Reference Guide for the full description of this function. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 66 of 86 14. 14.1. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Mounting the module on your board General The LE920 modules have been designed to be compliant with a standard lead-free SMT process. 14.2. Finishing & Dimensions Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 67 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 14.3. Recommended foot print for the application 198 pads Top View In order to easily rework the LE920 it is suggested to consider that the application has a 1.5 mm placement inhibit area around the module. It is also suggested, as a common rule for an SMT component, to avoid having a mechanical part of the application in direct contact with the module. NOTE:
In the customer application, the region under WIRING INHIBIT (see figure above) must be clear from signal or ground paths. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 68 of 86 14.4. 14.5. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Stencil Stencils apertures layout can be the same as the recommended footprint (1:1). A suggested thickness of stencil foil is greater than 120 m. PCB Pad Design Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 69 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 14.6. Recommendations for PCB Pad Dimensions (mm) It is not recommended to place via or micro-via not covered by solder resist in an area of 0,3 mm around the pads unless it carries the same signal of the pad itself (see following figure). Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB Pad Surfaces:
Finish Layer thickness (um) Properties Electro-less Ni / Immersion Au 3 7 / 0.05 0.15 good solder ability protection, high shear force values The PCB must be able to resist the higher temperatures which occur during the lead-free process. This issue should be discussed with the PCB-supplier. Generally, the wettability of tin-
lead solder paste on the described surface plating is better compared to lead-free solder paste. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 70 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 14.7. Solder Paste Solder Paste Lead free Sn/Ag/Cu We recommend using only no clean solder paste in order to avoid the cleaning of the modules after assembly. 14.7.1. Solder Reflow Recommended solder reflow profile:
Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 71 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Profile Feature Average ramp-up rate (TL to TP) Preheat Temperature Min (Tsmin) Temperature Max (Tsmax) Time (min to max) (ts) Tsmax to TL Ramp-up Rate Time maintained above:
Temperature (TL) Time (tL) Peak Temperature (Tp) Time within 5C of actual Peak Temperature (tp) Ramp-down Rate Time 25C to Peak Temperature Pb-Free Assembly 3C/second max 150C 200C 60-180 seconds 3C/second max 217C 60-150 seconds 245 +0/-5C 10-30 seconds 6C/second max. 8 minutes max. NOTE:
All temperatures refer to topside of the package, measured on the package body surface. WARNING:
The LE920 module withstands one reflow process only. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 72 of 86 15. 15.1. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Application guide Debug of the LE920 in production To test and debug the mounting of LE920, we strongly recommend foreseeing test pads on the host PCB, in order to check the connection between the LE920 itself and the application and to test the performance of the module by connecting it with an external computer. Depending on the customer application, these pads include, but are not limited to the following signals:
TXD RXD ON/OFF SHUTDOWN RESET GND VBATT TXD_AUX RXD_AUX USB_VBUS USB_D+
USB_D-
In addition the below signal are also recommended (but not must) PWRMON STAT_LED SW_RDY Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 73 of 86 15.2. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Bypass capacitor on Power supplies When a sudden voltage is asserted to or cut from the power supplies, the steep transition makes some reactions such as overshoot and undershoot. This abrupt voltage transition can affect the device causing it to not work or make it malfunction. Bypass capacitors are needed to alleviate this behavior. The behavior can be affected differently according to the various applications. Customers must pay special attention to this when they design their application board. The length and width of the power lines need to be considered carefully and the capacitance of the capacitors need to be selected accordingly. The capacitor will also prevent ripple of the power supplies and the switching noise caused in TDMA systems like GSM. Especially, a suitable bypass capacitor must be mounted on the Vbatt & Vbatt_PA (Pads AP17,AP19,AR18,AS17,AS19,AT18,AU17,AU19) and USB_VBUS (Pad A18) lines in the application board. The recommended values can be presented as:
100uF for Vbatt 4.7uF for USB_VBUS (including the 1uF capacitor inside the module). Customers must still consider that the capacitance mainly depends on the conditions of their application board. Generally more capacitance is required when the power line is longer. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 74 of 86 15.3. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 SIM interface This section deals with the recommended schematics for the design of SIM interfaces on the application boards. 15.3.1. SIM schematic example Figure 1 illustrates in particular how the application side should be designed, and what values the components should have. NOTE FOR R1:
The resistor value on SIMIO pulled up to SIMVCC should be defined accordingly in order to be compliant with 3GPP specification for USIM electrical testing. LE920 contains an internal pull-up resistor of 20K on SIMIO. However, the un-mounted option in the application design can be recommended in order to tune R1 if necessary. The following Table lists the values of C1 to be adopted with the LE920 product:
Product P/N LE920-EU/NA C1 range (nF) 100 nF Refer to the following document for the detail:
80000NT10026A - SIM Interface And ESD Protection Application Note Rev.2 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 75 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 15.3.2. eSIM interface guidelines NOTE:
eSIM feature available with LE920-NA AUTO S model only. LE920-NA AUTO S model designed to operate either with internal build-in eSIM, external SIM card or with both options, switching SIM cards using following setups:
For using internal eSIM configuration only, connect E8 pin ESIM_RST to B11 SIMRST1. Connect B7 SIMIN1 to GND, leave all other SIM card ports disconnected:
LE920-NA AUTO S module B9 SIMIO1 A10 SIMCLK1 B11 SIMRST1 E8 ESIM_RST A8 SIMVCC1 B7 SIMIN1 GND Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 76 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 For external SIM configuration only, leave E8 open (or set to GND) and follow 15.3.1 section guidelines. For configuration with both internal eSIM and external SIM cards use following approach:
1) Both eSIM and external SIM share the same lines except SIMRST1 and SIMIN1 lines that should be switched between them, either electronically or manually. For SIMRST1 switching, it is mandatory to keep second output of SW1 in high Z state when connected to the first one, therefore analog relay (for example DG9431 Single SPDT Analog Switch) / mechanical relay / 3 state buffer with separate enable for each output is recommended. 2) Connect 200k pulldown resistor (R2) to external SIM Reset line for keeping external SIM in high Z state during internal eSIM use, whenever SIMRST1 signal routed to E8 ESIM_RST path. This method prevents interference between the SIM cards enabling only one of them by SW1 selection. 3) For SIMIN1 card detection mechanism, similar approach to SIMRST1 recommended. Manual selection with 0 resistors is another option. External SIM card 3 2 1 6 5 4 8 7 SIMIN GND GND R1
. 8 2 K N o t m o u n t e d R2 2 0 0 k GND C1 C2 C3 C4 100nF 33pF 33pF 33pF LE920-NA AUTO S module B9 SIMIO1 A10 SIMCLK1 SPDT switch 1 SW1 B11 SIMRST1 E8 ESIM_RST A8 SIMVCC1 SPDT switch 2 SW2 B7 SIMIN1 GND GND NOTE FOR R1:
The resistor value on SIMIO pulled up to SIMVCC should be defined accordingly in order to be compliant with 3GPP specification. LE920-NA AUTO S contains an internal pull-up resistor on SIMIO1. However, the un-mounted option in the application design can be recommended in order to tune R1 if necessary. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 77 of 86 15.4. Pad LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 EMC recommendations All LE920 signals are provided with some EMC protection. Nevertheless the accepted level differs according to which pin. The characteristics are described in the following Table:
Signal I/O Function Contact Air All All Pins Antenna AD1,AU9,S1 Antenna Pads AI Antenna pad Appropriate series resistors must be considered to protect the input lines from overvoltage. 4KV 8KV 8KV 15KV Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 78 of 86 15.5. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Download and Debug Port One of the following options should be chosen in the design of host system in order to download or upgrade the Titan software and debug LE920 when LE920 is already mounted on a host system. Users who use both UART and USB interfaces to communicate with LE920
- Must implement a USB download method in a host system for upgrading LE920 when it is mounted. Users who use USB interface only to communicate with LE920
- Must arrange for a USB port in a host system for debugging or upgrading LE920 when it is mounted. Users who use UART interface only to communicate with LE920
- Must arrange for a USB port in a host system for debugging or upgrading LE920 when it is mounted. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 79 of 86 16. Packing system LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 The Titan LE920 is packaged on trays. The tray is JEDEC compliant, injection molded antistatic Modified Polyphenylene ether (MPPO). It has good thermal characteristics and can withstand a the standard baking temperature up to 125C, thereby avoiding handling the modules if baking is required. The trays are rigid, thus providing more mechanical protection against transport stress. Additionally they are re-usable and so environmentally sustainable. There are 2 (two) antistatic rubber bands that enclose each envelope. The carton box is rigid, thus offering mechanical protection. The carton box has one flap across the whole top surface. It is sealed with tape along the edges of the box. Tray Modules/tray Description xE920 packaging JEDEC Tray in each tray inside each envelope modules/
trays/
envelope modules/
envelope inside each carton box envelopes/
carton box 5+ 1 empty 120 4 tray 24 modules/
box 480 Minimum Order Quantity (MOQ) Standard Packing Quantity (SPQ) Qty 120 480 Each tray contains 24 pieces as shown in the following picture:
Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 80 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 81 of 86 16.1. Tray Drawing LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 82 of 86 16.2. LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Moisture Sensitivity The LE920 is a Moisture Sensitive Device level 3, in accordance with standard IPC/JEDEC J-
STD-020. Observe all of the requirements for using this kind of components. Calculated shelf life in sealed bag: 4 months at <40C and <90% relative humidity (RH). Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 83 of 86 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 17. Safety Recommendations READ CAREFULLY Be sure that the use of this product is allowed in your country and in the environment required. The use of this product may be dangerous and must be avoided in the following areas:
Where it can interfere with other electronic devices in environments such as hospitals, airports, aircrafts, etc. Where there is risk of explosion such as gasoline stations, oil refineries, etc. It is the responsibility of the user to enforce the country regulations and the specific environment regulations. Do not disassemble the product; any mark of tampering will compromise the warranty validity. We recommend following the instructions of the hardware user guides for correct wiring of the product. The product must be supplied with a stabilized voltage source and the wiring conform to the security and fire prevention regulations. The product must be handled with care, avoiding any contact with the pins because electrostatic discharges may damage the product itself. The same caution must be taken for the SIM, checking carefully the instructions for its use. Do not insert or remove the SIM when the product is in power saving mode. The system integrator is responsible for the functioning of the final product; therefore, care must be taken of the external components of the module, as well as of any project or installation issue, because of the risk of disturbing the GSM network or external devices or having any impact on safety. Should there be any doubt, please refer to the technical documentation and the regulations in force. Every module must be equipped with a proper antenna with the specified characteristics. The antenna must be installed with care in order to avoid any interference with other electronic devices and must be installed with the guarantee of a minimum 20 cm distance from a human body. In case this requirement cannot be satisfied, the system integrator must assess the final product against the SAR regulation. The European Community provides some Directives for electronic equipment introduced on the market. All the relevant information is available on the European Community website:
http://europa.eu.int/comm/enterprise/rtte/dir99-5.htm The text of the Directive 99/05 regarding telecommunication equipment is available, while the applicable Directives (Low Voltage and EMC) are available at:
http://europa.eu.int/comm/enterprise/rtte/dir99-5.htm Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 84 of 86 18. Document History LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21 Revision 0-draft1 0-draft2 Date 2012-10-03 2012-12-11 Changes First issue
- Remove SIM2 interface
- Remove external GPS LNA support Updated pin-out 0-draft3 0-draft4 2013-05-21 - Update DVI 2013-03-12 0-draft5 2013-10-08 1 2014-02-04 2 3 4 2014-04-02 2014-09-26 2015-03-19 5 2015-04-27
- Adding Current consumption
- Adding SHDN_N section
- Update Mechanical drawings
- Remove VRTC support
- Section 2.2, update tolerance value
- Section 3.1, remove VRTC and 2nd analog audio signals
- Section 4.2, update PWRMON turn on to 100mSec
- Section 4.3.2, update Hold Time min to 2.5 seconds
- Section 4.3.3, update RESET control timing details
- Section 5.1, update table
- Section 6.5, update insertion Loss value
- Section 8, remove USB Low speed support
- Section 10, adding Analog Audio support.
- Section 14.4, update table Initial official Release
- Added LE920-NV support
- Added VRTC support
- Added Section 2.6, sensitivity
- Section 8, added note
- Section 13.3, update figure
- Section 14.3, update description General editorial update
- Update 8, Firmware update
- Update 14.5, Firmware update
- Removed LE920-NV support
- Section 8, update USB_VBUS notes
- Section 15, update packing drawing and text
- Add Section 10, Peripheral Ports
- Section 6.4, added note for diversity antenna connection
- Section 5.1, added additional CFUN=5 measurements
- Section 12, remove high voltage tolerate
- Section 3.1, Update pinout
- Section 12.6 update
- Section 15.3 update
- Section 3.1, correct SPI_CS LGA pad
- Section 3.1.1 update figure
- Section 10.1, correct SPI_CS LGA pad
- Added differences NAG and NA (removing name NAA)
- Section 2.5, changed to 3 discrete figures Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 85 of 86 6 7 2015-06-25 2015-09-21 8 2016-02-02 9 2016-03-29 10 2018-03-04 11 2019-11-21 LE920 Hardware User Guide 1vv0301026 Rev.11 2019-11-21
- Section 3.1 correct pad F19 Function description
- APPLICABILITY TABLE 1 adding LE920-CN, LE920-
NA AUTO S models. Added cs numbers per model.
- Section 1.4 Document Organization links fixed.
- Section 2.5 - Added cs numbers per model.
- Added section 2.5.4 LE920-CN model bands.
- LE920-NA AUTO S added to section 2.5.3
- Section 2.6 - added sensitivity levels for TD-SCDMA & 4G TDD.
- Section 3.1, 3.1.1, 15.4 added ESIM_RST signal for LE920-NA AUTO S model.
- Section 6.5 modified according to GPS active / passive antenna configuration changes.
- Added section 15.3.2 eSim schematic example.
- Section 10.4 LE920-EUA changed to LE920-EU
- Section 3.1, 3.11 Pad V2 GPS_LNA_EN functionality declared to customer. Pads G2, J2, L2, F3, H3, K3, E4, and AN14 must be routed to TP for Titan debugging purpose.
- Section 2.5.3 - Changing B17 support to B12.
- Sections 6.1 , 6.4 Adding B12 support to GSM/WCDMA/LTE & Diversity Antenna requirements.
- Section 2.5.2 , 2.5.3 channels corrected for WCDMA B4.
- Section 5.2.1.3 Battery recommendations updated.
- Section 15.1 Recommended signals for debug updated.
- Section 15.2 Recommended USB_VBUS decupling capacitor value updated.
- Section 15.4 EMC recommendations updated.
- Adding section 2.7 Conformity assessment issues
- Section 4.3.4 Added section for clarifying power down and power off procedures.
- Section 5.1 GPRS, EDGE slots corrected to 1TX+4RX
- Telit logo and Telit name were replaced to Titan.
- EOL variants were removed from HUG.
- Section 2.7.1.5 - FCC ID and IC were updated from Telit to Titan. Reproduction forbidden without written authorization from Titan Automotive Solutions NV. - All Rights Reserved. Page 86 of 86
| 1 | Label desgin | ID Label/Location Info | 288.73 KiB | January 31 2020 |
elit asco-na AUTO IME! 354877070003457 ENGINEERING SAMPLE Model LE920-NA Made in Taiwan CL Ci PEEP TTy:
POO Se ec Cn TITAN Le:s20-na AUTO IMEI: 123456789012345 FCC: 2AUECLE920NA1 IC: 25635-LE920NA1 Model: LE920-NA Made in Taiwan
| 1 | Agent letter | Cover Letter(s) | 179.46 KiB | January 31 2020 |
Date: Tuesday, November 19, 2019 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Rd. Columbia MD 21046 Ref: Agent letter for FCC ID: 2AUEC-LE920NA1 We, Titan Automotive Solutions N.V. Interleuvenlaan 80, Leuven, 3001, Belgium. hereby authorize, DEKRA Testing and Certification, S.A.U. Parque Tecnolgico de Andaluca. C/ Severo Ochoa n 2. 29590 Campanillas Mlaga. Spain Agent:
e-mail:
Phone:
Mr. lvaro Corrales Sedeo alvaro.corrales@dekra.com
+34 925 619 198 to act as our agent in the preparation of this application for equipment certification, including the signing of all documents relating to these matters. We also hereby certify that neither we nor any party to this application are subject to a denial of U.S. Federal benefits, which include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, U.S.C. 862 because of conviction for possession or distribution of controlled substance. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by DEKRA Testing and Certification, S.A.U., still resides with us. This agreement expires one year from the current date. Sincerely, Alfred Firouz Certification Manager Titan Automotive Solutions N.V. By:
Title:
Company:
Telephone: 003216390786 e-mail:
alfred.firouz@tustitan.com
| 1 | Application letter | Cover Letter(s) | 463.67 KiB | January 31 2020 |
Date: January 31, 2020 to:
from:
Regulatory Certification Body DEKRA Testing and Certification, S.A.U. Parque Tecnolgico de Andaluca. C/
Severo Ochoa n 2. 29590 Campanillas Malaga. Spain Titan Automotive Solutions N.V. Interleuvenlaan 80, Leuven, 3001, Belgium Related to product:
Type of equipment:
Brand name:
Product Marketing Name Model/HVIN:
FCC ID:
IC:
To whom it may concern, LE920-NA LTE Module Titan LE920-NA LE920-NA 2AUECLE920NA1 25635-LE920NA1 We, Titan Automotive Solutions N.V. (FCC grantee code: 2AUEC; ISED company number:
25635), hereby request the change of FCC ID and to Multiple list the IC of the module from Telit Communications S.p.A. to us. We declare under our sole responsibility, the identity in design and construction to the originally approved products for the following device. Originally approved device by Telit Change of FCC ID and IC by Titan Automotive Communications S.p.A. Solutions N.V. Model / HVIN FCC ID and IC Model / HVIN FCC ID and IC LE920-NA RI7LE920NA1 5131A-LE920NA1 LE920-NA 2AUECLE920NA1 25635-LE920NA1 This module was originally certified by Telit Communications S.p.A. before both the FCC and the ISED on March 19th 2015 and April 24th 2015 respectively. This request is to transfer these certifications from Telit Communications to Titan Automotive. Attached to this application you can find the following documents A letter from Telit Communications S.p.A. allowing for the use of previous documentation related to the product. External photographs User manual Label design and location FCC Agent letter FCC form 731 ISED Agent letter ISED RSP-100, Annex A ISED RSP-100, Annex B ISED RSS-102, Annex A and B Canadian Representative Letter. Sincerely, By:
Title:
Company:
Telephone:
e-mail:
Alfred Firouz PA Certification Manager Titan Automotive Solutions N.V. 003216390786 alfred.firouz@tustitan.com
| 1 | Authorisation letter | Cover Letter(s) | 46.42 KiB | January 31 2020 |
Date: 2019-11-26 To whom it may concern. Ref: Permission to file a Change in FCC ID We, hereby authorize Telit Communications S.p.A., Via Stazione di Prosecco, 5/B. 34010 Sgonico, Trieste (Italy), Titan Automotive Solutions N.V. Interleuvenlaan 80, Leuven, 3001, Belgium To file a Change the FCC ID and listing all the applicable FCC IDs and the dates of the original grants of equipment authorization for the following products. Model OM12030/200 LE920A4-NA LE920-NA FCC ID RI7OM12030-200 RI7LE920A4NA RI7LE920NA1 Telephone: 1-919-415-1517 e-mail: Ken.Bednasz@telit.com
| 1 | SDoC letter | Cover Letter(s) | 495.27 KiB | January 31 2020 |
Date: January 31, 2020 DEKRA Testing and Certification, S.A.U. Parque Tecnolgico de Andaluca C/ Severo Ochoa 2 & 6 29590 Campanillas Mlaga, Espaa Ref: sDoC declaration letter for equipment with FCC ID: 2AUECLE920NA1 Pursuant to 15.101 of the Commissions Rules (47 C.F.R.), Titan Automotive Solutions N.V. hereby declare that the device above mentioned is classified under the following equipment class/classes:
JAB JAD JAV JBP JBC CXX CRR CYY HID Part 15 Class B Digital Device Part 15 Class A Digital Device Other Non-Digital SDoC Devices Part 15 Class B Computing Device/Personal Computer Part 15 Class B Computing Device/Personal Computer Communications Rcvr for use w/ licensed Tx and CBs Superregenerative Receiver Communications Receiver used w/Pt 15 Transmitter Part 15 TV Interface Device And will follow the Authorization procedure Suppliers Declaration of Conformity prior to the initiation of marketing. Sincerely, By:
Title:
Company:
Telephone:
e-mail:
Alfred Firouz Certification Manager Titan Automotive Solutions N.V. 003216390786 alfred.firouz@tustitan.com PA FCB034_00 //DEKRA Testing and Certification, S.A.U. // www.dekra-product-safety.com/wireless
| frequency | equipment class | purpose | ||
|---|---|---|---|---|
| 1 | 2020-01-31 | 2510 ~ 2560 | PCB - PCS Licensed Transmitter | Change in Identification |
| app s | Applicant Information | |||||
|---|---|---|---|---|---|---|
| 1 | Effective |
2020-01-31
|
||||
| 1 | Applicant's complete, legal business name |
Titan Automotive Solutions N.V.
|
||||
| 1 | FCC Registration Number (FRN) |
0028760098
|
||||
| 1 | Physical Address |
Interleuvenlaan 80
|
||||
| 1 |
Leuven, N/A
|
|||||
| 1 |
Belgium
|
|||||
| app s | TCB Information | |||||
| 1 | TCB Application Email Address |
a******@dekra.com
|
||||
| 1 | TCB Scope |
B1: Commercial mobile radio services equipment in the following 47 CFR Parts 20, 22 (cellular), 24,25 (below 3 GHz) & 27
|
||||
| app s | FCC ID | |||||
| 1 | Grantee Code |
2AUEC
|
||||
| 1 | Equipment Product Code |
LE920NA1
|
||||
| app s | Person at the applicant's address to receive grant or for contact | |||||
| 1 | Name |
A****** F********
|
||||
| 1 | Title |
Certification manager
|
||||
| 1 | Telephone Number |
+3216********
|
||||
| 1 | Fax Number |
+3216********
|
||||
| 1 |
a******@tustitan.com
|
|||||
| app s | Technical Contact | |||||
| n/a | ||||||
| app s | Non Technical Contact | |||||
| n/a | ||||||
| app s | Confidentiality (long or short term) | |||||
| 1 | Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
| 1 | Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
| if no date is supplied, the release date will be set to 45 calendar days past the date of grant. | ||||||
| app s | Cognitive Radio & Software Defined Radio, Class, etc | |||||
| 1 | Is this application for software defined/cognitive radio authorization? | No | ||||
| 1 | Equipment Class | PCB - PCS Licensed Transmitter | ||||
| 1 | Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant) | LE920-NA LTE Module | ||||
| 1 | Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application? | No | ||||
| 1 | Modular Equipment Type | Single Modular Approval | ||||
| 1 | Purpose / Application is for | Change in Identification | ||||
| 1 | Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization? | No | ||||
| 1 | Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization? | No | ||||
| 1 | Grant Comments | Ouput power is conducted. This device is approved for mobile and fixed use with respect to RF exposure compliance. The antenna of this transmitter must provide a separation distance of at least 20 cm from all persons. Installers and end-users must be provided with antenna installation instructions and transmitter operating conditions and instructions for satisfying RF exposure compliance The final product operating with this transmitter must include operating instructions and antenna installation instructions, for end-users and installers to satisfy RF exposure compliance requirements. Multi-transmitter, supporting simultaneous transmission configurations, have not been evaluated and shall be evaluated according to KDB Publication 447498 and §15.31(h) and §15.31(k) composite system and § 2.1 end product terms and concepts. Compliance of this device in all final product configurations is the responsibility of the Grantee. Installation of this device into specific final products may require the submission of a Class II permissive change application containing data pertinent to RF Exposure, emissions and host/module authentication, or new application if appropriate. The maximum antenna gain including cable loss for compliance with radiated power limits, RF exposure requirements and the categorical exclusion requirements of 2.1091 is 5.66 dBi for 700 MHz; 6.13 dBi for 850 MHz; 5.00 dBi for 1700 MHz, 8.01 dBi for 1900 MHz and 8.01 dBi for 2600 MHz frequency bands. | ||||
| 1 | Is there an equipment authorization waiver associated with this application? | No | ||||
| 1 | If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded? | No | ||||
| app s | Test Firm Name and Contact Information | |||||
| 1 | Firm Name |
Compliance Certification Services Inc. Wugu Lab.
|
||||
| 1 | Name |
H****** L********
|
||||
| 1 | Telephone Number |
886-2******** Extension:
|
||||
| 1 | Fax Number |
+886-********
|
||||
| 1 |
h******@sgs.com
|
|||||
| Equipment Specifications | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
| 1 | 1 | 27 | 1712.4 | 1752.6 | 0.3133 | 1 ppm | 4M36F9W | ||||||||||||||||||||||||||||||||||
| 1 | 2 | 27 | 1712.4 | 1752.6 | 0.3097 | 1 ppm | 4M35F9W | ||||||||||||||||||||||||||||||||||
| 1 | 3 | 27 | 1712.4 | 1752.6 | 0.3083 | 1 ppm | 4M36F9W | ||||||||||||||||||||||||||||||||||
| 1 | 4 | 27 | 1712.5 | 1752.5 | 0.2291 | 1 ppm | 4M52G7D | ||||||||||||||||||||||||||||||||||
| 1 | 5 | 27 | 1712.5 | 1752.5 | 0.1841 | 1 ppm | 4M51W7D | ||||||||||||||||||||||||||||||||||
| 1 | 6 | 27 | 1715 | 1750 | 0.2109 | 1 ppm | 8M97G7D | ||||||||||||||||||||||||||||||||||
| 1 | 7 | 27 | 1715 | 1750 | 0.1782 | 1 ppm | 8M98W7D | ||||||||||||||||||||||||||||||||||
| 1 | 8 | 27 | 1720 | 1745 | 0.2014 | 1 ppm | 17M9G7D | ||||||||||||||||||||||||||||||||||
| 1 | 9 | 27 | 1720 | 1745 | 0.1578 | 1 ppm | 18M0W7D | ||||||||||||||||||||||||||||||||||
| 1 | 1 | 27 | 2502.5 | 2567.5 | 0.2 | 1 ppm | 4M52G7D | ||||||||||||||||||||||||||||||||||
| 1 | 11 | 27 | 2502.5 | 2567.5 | 0.1671 | 1 ppm | 4M52W7D | ||||||||||||||||||||||||||||||||||
| 1 | 12 | 27 | 2505 | 2560 | 0.1888 | 1 ppm | 8M95G7D | ||||||||||||||||||||||||||||||||||
| 1 | 13 | 27 | 2505 | 2560 | 0.2061 | 1 ppm | 8M94W7D | ||||||||||||||||||||||||||||||||||
| 1 | 14 | 27 | 2510 | 2560 | 0.1972 | 1 ppm | 17M8G7D | ||||||||||||||||||||||||||||||||||
| 1 | 15 | 27 | 2510 | 2560 | 0.1786 | 1 ppm | 17M8W7D | ||||||||||||||||||||||||||||||||||
| 1 | 16 | 27 | 706.5 | 713.5 | 0.2576 | 1 ppm | 4M52G7D | ||||||||||||||||||||||||||||||||||
| 1 | 17 | 27 | 706.5 | 713.5 | 0.2028 | 1 ppm | 4M52W7D | ||||||||||||||||||||||||||||||||||
| 1 | 18 | 27 | 709 | 711 | 0.2535 | 1 ppm | 8M97G7D | ||||||||||||||||||||||||||||||||||
| 1 | 19 | 27 | 709 | 711 | 0.1892 | 1 ppm | 8M97W7D | ||||||||||||||||||||||||||||||||||
| 1 | 2 | 22H | 826.4 | 846.6 | 0.3006 | 1 ppm | 4M17F9W | ||||||||||||||||||||||||||||||||||
| 1 | 21 | 22H | 826.4 | 846.6 | 0.3076 | 1 ppm | 4M18F9W | ||||||||||||||||||||||||||||||||||
| 1 | 22 | 22H | 826.4 | 846.6 | 0.302 | 1 ppm | 4M19F9W | ||||||||||||||||||||||||||||||||||
| 1 | 23 | 22H | 826.5 | 846.6 | 0.2489 | 1 ppm | 4M53G7D | ||||||||||||||||||||||||||||||||||
| 1 | 24 | 22H | 826.5 | 846.6 | 0.2075 | 1 ppm | 4M52W7D | ||||||||||||||||||||||||||||||||||
| 1 | 25 | 22H | 829 | 844 | 0.246 | 1 ppm | 9M02G7D | ||||||||||||||||||||||||||||||||||
| 1 | 26 | 22H | 829 | 844 | 0.1932 | 1 ppm | 9M03W7D | ||||||||||||||||||||||||||||||||||
| 1 | 27 | 24E | 1852.4 | 1907.6 | 0.3076 | 1 ppm | 4M31F9W | ||||||||||||||||||||||||||||||||||
| 1 | 28 | 24E | 1852.4 | 1907.6 | 0.3027 | 1 ppm | 4M31F9W | ||||||||||||||||||||||||||||||||||
| 1 | 29 | 24E | 1852.5 | 1907.5 | 0.2495 | 1 ppm | 4M52G7D | ||||||||||||||||||||||||||||||||||
| 1 | 3 | 24E | 1855 | 1905 | 0.246 | 1 ppm | 8M97G7D | ||||||||||||||||||||||||||||||||||
| 1 | 31 | 24E | 1852.5 | 1907.5 | 0.2148 | 1 ppm | 4M52W7D | ||||||||||||||||||||||||||||||||||
| 1 | 32 | 24E | 1855 | 1905 | 0.2128 | 1 ppm | 8M96W7D | ||||||||||||||||||||||||||||||||||
| 1 | 33 | 24E | 1860 | 1900 | 0.2636 | 1 ppm | 17M9G7D | ||||||||||||||||||||||||||||||||||
| 1 | 34 | 24E | 1860 | 1900 | 0.2213 | 1 ppm | 17M9W7D | ||||||||||||||||||||||||||||||||||
some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details
This product uses the FCC Data API but is not endorsed or certified by the FCC