FCC ID: XMR201404UC15M UMTS/HSDPA module

UC15 Mini PCIe Hardware Design UMTS/HSDPA Module Series Rev. UC15_Mini_PCIe_Hardware_Design_V1.0 Date: 2014-07-11 www.quectel.com UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters:

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http://www.quectel.com/support/techsupport.aspx GENERAL NOTES QUECTEL OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION. THE INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. COPYRIGHT THIS INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL CO., LTD. TRANSMITTABLE, REPRODUCTION, DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THIS CONTENTS ARE FORBIDDEN WITHOUT PERMISSION. OFFENDERS WILL BE HELD LIABLE FOR PAYMENT OF DAMAGES. ALL RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL OR DESIGN. Copyright Quectel Wireless Solutions Co., Ltd. 2014. All rights reserved. UC15_Mini_PCIe_Hardware_Design Confidential / Released 1 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design About the Document History Revision Date Author Description 1.0 2014-07-11 Mountain ZHOU Initial UC15_Mini_PCIe_Hardware_Design Confidential / Released 2 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Contents 2.4. 2.5. 2.3.1. 2.3.2. About the Document ................................................................................................................................... 2 Contents ....................................................................................................................................................... 3 Table Index ................................................................................................................................................... 5 Figure Index ................................................................................................................................................. 6 1 Introduction .......................................................................................................................................... 7 1.1. Safety Information...................................................................................................................... 7 2 Product Concept .................................................................................................................................. 9 2.1. General Description ................................................................................................................... 9 Description of Product Version .................................................................................................. 9 2.2. Directives and Standards ........................................................................................................ 10 2.3. FCC Statement ............................................................................................................... 10 FCC Radiation Exposure Statement .............................................................................. 10 Key Features ........................................................................................................................... 10 Functional Diagram ................................................................................................................. 12 3 Application Interface ......................................................................................................................... 14 3.1. General Description ................................................................................................................. 14 3.2. UC15 Mini PCIe Interface ........................................................................................................ 14 3.2.1. Definition of Interface ..................................................................................................... 14 3.2.2. Pin Assignment .............................................................................................................. 17 Power Supply ........................................................................................................................... 18 UART Interface ........................................................................................................................ 18 USIM Card Interface ................................................................................................................ 20 USB Interface .......................................................................................................................... 23 Audio Interface ......................................................................................................................... 24 3.7.1. Digital Audio Interface .................................................................................................... 24 3.7.2. Analog Audio Interface ................................................................................................... 26 Control Signals ........................................................................................................................ 29 3.8.1. W_DISABLE# Signal ...................................................................................................... 29 3.8.2. PERST# Signal .............................................................................................................. 30 3.8.3. LED_WWAN# Signal ..................................................................................................... 30 Antenna Interface .................................................................................................................... 31 4 Electrical and Radio Characteristics ............................................................................................... 33 4.1. General Description ................................................................................................................. 33 Power Supply Requirements ................................................................................................... 33 4.2. IO Requirements ...................................................................................................................... 33 4.3. 4.4. Current Consumption .............................................................................................................. 34 RF Characteristics ................................................................................................................... 35 4.5. 4.6. ESD Characteristics ................................................................................................................ 36 5 Mechanical Dimensions .................................................................................................................... 37 5.1. General Description ................................................................................................................. 37 5.2. Mechanical Dimensions of UC15 Mini PCIe ........................................................................... 37 3.3. 3.4. 3.5. 3.6. 3.7. 3.8. 3.9. UC15_Mini_PCIe_Hardware_Design Confidential / Released 3 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 5.3. 5.4. Standard Dimensions of Mini PCI Express ............................................................................. 38 Packaging ................................................................................................................................ 39 6 Appendix Reference .......................................................................................................................... 40 UC15_Mini_PCIe_Hardware_Design Confidential / Released 4 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table Index TABLE 1: PRODUCT VERSION OF UC15 MINI PCIE ....................................................................................... 9 TABLE 2: KEY FEATURES OF UC15 MINI PCIE .............................................................................................. 11 TABLE 3: DEFINITION OF IO PARAMETERS .................................................................................................. 14 TABLE 4: DESCRIPTION OF PIN ..................................................................................................................... 15 TABLE 5: VCC_3V3 AND GND PINS ................................................................................................................ 18 TABLE 6: PIN DEFINITION OF THE UART INTERFACE ................................................................................. 19 TABLE 7: PIN DEFINITION OF THE USIM CARD INTERFACE ...................................................................... 20 TABLE 8: PIN DESCRIPTION OF AMPHENOL USIM CARD CONNECTOR .................................................. 22 TABLE 9: USB PIN DESCRIPTION .................................................................................................................. 23 TABLE 10: PIN DEFINITION OF PCM AND I2C INTERFACE .......................................................................... 25 TABLE 11: PIN DEFINITION OF ANALOG AUDIO INTERFACE ...................................................................... 26 TABLE 12: INPUT CHARACTERISTICS ........................................................................................................... 27 TABLE 13: OUTPUT CHARACTERISTICS ....................................................................................................... 27 TABLE 14: DESCRIPTION OF CONTROL SIGNAL PINS ................................................................................ 29 TABLE 15: RADIO OPERATIONAL STATES .................................................................................................... 29 TABLE 16: INDICATION OF NETWORK STATUS ............................................................................................ 31 TABLE 17: ANTENNA REQUIREMENTS .......................................................................................................... 32 TABLE 18: POWER SUPPLY REQUIREMENTS .............................................................................................. 33 TABLE 19: IO REQUIREMENTS ....................................................................................................................... 34 TABLE 20: CURRENT CONSUMPTION ........................................................................................................... 34 TABLE 21: OUTPUT POWER OF CONDUCTED RF ....................................................................................... 35 TABLE 22: RECEIVING SENSITIVITY OF CONDUCTED RF .......................................................................... 35 TABLE 23: ESD CHARACTERISTICS .............................................................................................................. 36 TABLE 24: RELATED DOCUMENTS ................................................................................................................ 40 TABLE 25: TERMS AND ABBREVIATIONS ...................................................................................................... 40 UC15_Mini_PCIe_Hardware_Design Confidential / Released 5 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Figure Index FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 13 FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 17 FIGURE 3: REFERENCE DESIGN OF POWER SUPPLY ............................................................................... 18 FIGURE 4: THE DCE-DTE CONNECTION OF UART INTERFACE ................................................................ 19 FIGURE 5: RS232 LEVEL MATCH CIRCUIT .................................................................................................... 20 FIGURE 6: REFERENCE CIRCUIT OF THE 6 PIN USIM CARD ..................................................................... 21 FIGURE 7: AMPHENOL C707 10M006 512 2 USIM CARD CONNECTOR ..................................................... 22 FIGURE 8: REFERENCE CIRCUIT OF USB INTERFACE .............................................................................. 23 FIGURE 9: SHORT SYNC MODE TIMING ....................................................................................................... 24 FIGURE 10: LONG SYNC MODE TIMING ....................................................................................................... 25 FIGURE 11: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 26 FIGURE 12: MICROPHONE REFERENCE DESIGN ....................................................................................... 27 FIGURE 13: REFERENCE DESIGN OF RECEIVER ....................................................................................... 28 FIGURE 14: REFERENCE DESIGN WITH AN AMPLIFIER FOR SPEAKER .................................................. 28 FIGURE 15: REFERENCE DESIGN OF EARPHONE ...................................................................................... 28 FIGURE 16: TIMING OF RESETTING MODULE ............................................................................................. 30 FIGURE 17: REFERENCE CIRCUIT OF LED_WWAN# .................................................................................. 30 FIGURE 18: UC15 MINI PCIE ANTENNA INTERFACE .................................................................................... 31 FIGURE 19: DIMENSIONS OF THE RF CONNECTOR (UNIT: MM) ............................................................... 31 FIGURE 20: MECHANICALS OF UF.L-LP CONNECTORS ............................................................................. 32 FIGURE 21: MECHANICAL DIMENSIONS OF UC15 MINI PCIE (UNIT: MM) ................................................. 37 FIGURE 22: STANDARD DIMENSIONS OF MINI PCI EXPRESS (UNIT: MM) ............................................... 38 FIGURE 23: DIMENSIONS OF THE MINI PCI EXPRESS CONNECTOR (UNIT: MM) ................................... 39 UC15_Mini_PCIe_Hardware_Design Confidential / Released 6 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 1 Introduction This document defines UC15 Mini PCIe module and describes its hardware interfaces which are connected with your application and air interfaces. This document can help you to quickly understand the interface specifications, electrical and mechanical details and related product information of the UC15 Mini PCIe module. Associated with application notes and user guide of UC15 Mini PCIe module, you can use the module to design and set up mobile applications easily. 1.1. Safety Information The following safety precautions must be observed during all phases of the operation, such as usage, service or repair of any cellular terminal or mobile incorporating UC15 Mini PCIe module. Manufacturers of the cellular terminal should send the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product. If not so, Quectel does not take on any liability for customer failure to comply with these precautions. Full attention must be given to driving at all times in order to reduce the risk of an accident. Using a mobile while driving (even with a handsfree kit) cause distraction and can lead to an accident. You must comply with laws and regulations restricting the use of wireless devices while driving. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it switched off. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Consult the airline staff about the use of wireless devices on boarding the aircraft, if your device offers a Airplane Mode which must be enabled prior to boarding an aircraft. Switch off your wireless device when in hospitals or clinics or other health care facilities. These requests are desinged to prevent possible interference with sentitive medical equipment. UC15_Mini_PCIe_Hardware_Design Confidential / Released 7 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Cellular terminals or mobiles operate over radio frequency signal and cellular network and cannot be guaranteed to connect in all conditions, for example no mobile fee or an invalid SIM card. While you are in this condition and need emergent help, please remember using emergency call. In order to make or receive call, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Your cellular terminal or mobile contains a transmitter and receiver. When it is ON, it receives and transmits radio frequency energy. RF interference can occur if it is used close to TV set, radio, computer or other electric equipment. In locations with potencially explosive atmospheres, obey all posted signs to turn off wireless devices such as your phone or other cellular terminals. Areas with potencially exposive atmospheres including fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains chemicals or particles such as grain, dust or metal powders. UC15_Mini_PCIe_Hardware_Design Confidential / Released 8 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 2 Product Concept 2.1. General Description UC15 Mini PCIe module is a cost effective UMTS/HSDPA module featuring a maximum data rate of 3.6Mbps downlink and 384kbps uplink, according to PCI Express Mini Card 1.2 standard, supports embedded operating system such as WinCE, Linux and Android etc. UC15 Mini PCIe module can be applied in the following fields:

PDAs and Laptop Computer Remote Monitor System Vehicle System Wireless POS System Wireless Router and Switch Other Wireless Terminal Device This chapter generally introduces the following aspects of UC15 Mini PCIe module:

Product Version Key Features Functional Diagram Intelligent Meter Reading System 2.2. Description of Product Version The following table shows the product version of UC15 Mini PCIe module. Table 1: Product Version of UC15 Mini PCIe Product Version Description Telematics Data Only Support voice and data. Support data only. UC15_Mini_PCIe_Hardware_Design Confidential / Released 9 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 2.3. Directives and Standards The UC15 Mini PCIe module is designed to comply with the FCC statements.FCC ID:XMR201404UC15M If the FCC ID of the module cannot be seen by the user in the final installation, the host device must show the statement: Contains FCC ID: XMR201404UC15M in a visible and permanent location 2.3.1. FCC Statement 1. This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions:

a) This device may not cause harmful interference. b) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could avoid the users authority to operate the equipment. 2.3.2. FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body as well as kept minimum 20cm from radio antenna depending on the Mobile status of this module usage. This module should NOT be installed and operating simultaneously with other radio. The manual of the host system, which uses UC15 Mini PCIe, must include RF exposure warning statement to advice user should keep minimum 20cm from the radio antenna of UC15 Mini PCIe module depending on the mobile status. Note: If a portable device (such as PDA) uses UC15 Mini PCIe module, the device needs to do permissive change and SAR testing. The following list of antenna is indicating the maximum permissible antenna gain. Part Number 3R007A Frequency Range (MHz) GSM850:824~849 PCS1900:1850~1990 UMTS1900:1850~1990 UMTS850:824-894 Peak Gain

(XZ-V) Average Gain

(XZ-V) VSWR Impedance 1 dBi typ. 1 dBi typ. 3 max 50 2.4. Key Features The following table describes the detailed features of UC15 Mini PCIe module. UC15_Mini_PCIe_Hardware_Design Confidential / Released 10 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table 2: Key Features of UC15 Mini PCIe Feature Details Function Interface Power Supply Frequency Bands Transmission Data Transmitting Power HSDPA and WCDMA Features GSM/GPRS/EDGE Data Features Internet Protocol Features SMS USIM Interface UART Interface PCI Express Mini Card 1.2 Standard Interface Supply voltage: 3.0~3.6V Typical supply voltage: 3.3V GSM850/900/1800/1900, UMTS850/1900 HSDPA R5: Max 3.6Mbps (DL) UMTS R99: Max 384kbps (DL)/Max 384kbps (UL) EDGE: Max 236.8kbps (DL only) GPRS: Max 85.6kbps (DL)/Max 85.6kbps (UL) CSD: 64kbps Class 4 (33dBm2dB) for GSM850 and EGSM900 Class 1 (30dBm2dB) for DCS1800 and PCS1900 Class E2 (27dBm3dB) for GSM850 and EGSM900 Class E2 (26dBm+3/-4dB) for DCS1800 and PCS1900 Class 3 (24dBm+1/-3dB) for UMTS850/1900 HSDPA data rate is corresponded with 3GPP R5. 3.6Mbps on downlink. WCDMA data rate is corresponded with 3GPP R99/R4. 384kbps on downlink and 384kbps on uplink. Support both QPSK and 16-QAM modulation. GPRS: Support GPRS multi-slot class 12 (10 by default). Coding scheme: CS-1, CS-2, CS-3 and CS-4. Maximum of four Rx time slots per frame. EDGE: Support EDGE multi-slot class 12 (12 by default). Support GMSK for different MCS (Modulation and Coding Scheme). Downlink coding schemes: CS 1-4 and MCS 1-9. CSD: CSD transmission rates: 64kbps non-transparent. Support Unstructured Supplementary Services Data (USSD). Support TCP/IP/PPP/UDP protocols. Support the protocols PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) usually used for PPP connections. Text and PDU mode Point to point MO and MT SMS cell broadcast SMS storage: ME by default Support USIM/SIM card: 1.8V, 3.0V Support seven lines on UART interface. Support RTS and CTS hardware flow control. Baud rate can reach up to 230400 bps, 115200 bps by default. UC15_Mini_PCIe_Hardware_Design Confidential / Released 11 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Used for AT command and data transmission. Support multiplexing function. Support one differential input and one differential output channel. GSM: HR/FR/EFR/AMR/AMR-WB WCDMA: AMR/AMR-WB Echo cancellation and noise suppression Support 16-bit linear data formats. Support long frame sync and short frame sync. Support master and slave mode, but must be the master in long frame sync. Compliant with USB 2.0 specification (slave only), the data transfer rate can reach up to 480 Mbps. Used for AT command communication, data transmission, software debug and firmware upgrade. USB Driver: Support Windows XP, Windows Vista, Windows 7, Windows 8, WinCE 5.0/6.0, Windows Mobile 6.1/6.5, Linux 2.6 or later, Android 2.3 or later. One GSM/UMTS antenna connector. Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT commands. Size: 51.0 30.0 4.9mm Weight: Approx. 9.3g Normal operation: -30C ~ +70C Restricted operation: -40C ~ -30C and +70C ~ +80C Storage temperature: -45C ~ +90C USB interface All hardware components are fully compliant with EU RoHS directive. Analog Audio Interface*

PCM Digital Audio Interface*

USB Interface Antenna Interface AT Commands Physical Characteristics Temperature Range Firmware Upgrade RoHS NOTES 1. means when the module works within this temperature range, RF performance might degrade. For example, the frequency error or the phase error may increase. 2. * means these functions are only supported in Telematics version. 2.5. Functional Diagram The following figure shows a block diagram of UC15 Mini PCIe and illustrates the major functional parts:

USIM/SIM card interface (1.8V/3.0V) USB 2.0 interface UART interface (seven lines) UC15_Mini_PCIe_Hardware_Design Confidential / Released 12 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design I2C interface Audio interface Support LED status indication Support disabling wireless communication function Support hardware reset function Support GSM/UMTS antenna interface I t n e r f a c e M n i i P C I E x p r e s s Figure 1: Functional Diagram UC15_Mini_PCIe_Hardware_Design Confidential / Released 13 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 3 Application Interface 3.1. General Description The physical connections and signal levels of UC15 Mini PCIe comply with PCI Express Mini CEM specifications. This chapter mainly describes the definition of following interfaces and applications of UC15 Mini PCIe. Power supply UART interface USIM interface USB interface Audio interface Antenna interface Control signals (W_DISABLE#, PERST# and LED_WWAN#) 3.2. UC15 Mini PCIe Interface 3.2.1. Definition of Interface The following tables show the pin assignments of UC15 Mini PCIe on the 52-pin application. Table 3: Definition of IO Parameters Type AI AO DI DO IO OC Description Analog input Analog output Digital input Digital output Bidirectional input/output Open collector UC15_Mini_PCIe_Hardware_Design Confidential / Released 14 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design PI PO Power input Power output Table 4: Description of Pin I/O Description Comment Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Mini PCI Express Standard Name WAKE#

UC15 Mini PCIe Name MICP*

3.3Vaux COEX1 GND COEX2 1.5V CLKREQ#

VCC_3V3 MICN*

GND SPKP*

NC SPKN*

UIM_PWR USIM_VDD GND GND UIM_DATA USIM_DATA REFCLK-

UIM_CLK UART_RX AI PI AI Audio positive input 3.3V DC supply Audio negative input Mini card ground AO Audio positive output AO PO IO DI Audio negative output Power source for the USIM card Mini card ground USIM data signal UART receives data USIM_CLK DO USIM clock signal REFCLK+

UART_TX DO UART transmits data UIM_RESET USIM_RST DO USIM reset signal GND GND UIM_VPP RESERVED Mini card ground Reserved RESERVED UART_RI DO UART ring indicator GND GND RESERVED RESERVED W_DISABLE#

W_DISABLE#

GND GND DI Mini card ground Reserved Disable wireless communications Mini card ground Connect to DTEs TX. Connect to DTEs RX. Active low. UC15_Mini_PCIe_Hardware_Design Confidential / Released 15 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 PERn0 3.3Vaux PERp0 GND GND 1.5V GND PETp0 GND GND USB_D-

GND USB_D+

3.3Vaux GND 3.3Vaux PERST#

PERST#

DI DI Functional reset to the card UART clear to send Reserved UART_CTS RESERVED UART_RTS DO UART request to send GND GND NC GND Mini card ground Mini card ground Mini card ground SMB_CLK I2C_SCL DO I2C clock signal PETn0 UART_DTR SMB_DATA I2C_SDA DI IO UART data terminal ready I2C data signal UART_DCD DO UART data carrier detection GND GND USB_DM GND USB_DP VCC_3V3 GND VCC_3V3 IO IO PI PI Mini card ground Mini card ground USB differential data (-) Mini card ground USB differential data (+) 3.3V DC supply Mini Card ground 3.3V DC supply Active-low LED signal for indicating the state of the card Mini card ground Reserved PCM clock signal Reserved LED_WWAN#

LED_WWAN#

OC GND GND LED_WLAN#

RESERVED RESERVED PCM_CLK*

LED_WPAN#

RESERVED IO RESERVED PCM_DOUT*

DO PCM data output Active low pulse. Connect to DTEs RTS. Connect to DTEs CTS. UC15_Mini_PCIe_Hardware_Design Confidential / Released 16 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 1.5V NC RESERVED PCM_DIN*

GND GND RESERVED PCM_SYNC*

3.3Vaux VCC_3V3 DI IO PI PCM data input Mini card ground PCM frame sync signal 3.3V DC supply 48 49 50 51 52 NOTES 1. PCM and analog audio interface are only supported in Telematics version. 2. Keep all NC, reserved and unused pins unconnected. 3.2.2. Pin Assignment The following figure shows the pin assignment of UC15 Mini PCIe module. The top side contains UC15 module and antenna connectors. Figure 2: Pin Assignment UC15_Mini_PCIe_Hardware_Design Confidential / Released 17 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 3.3. Power Supply The following table shows the VCC_3V3 pins and ground pins. Table 5: VCC_3V3 and GND Pins Pin Name I/O Description Pin No. 2, 39, 41, 52 4, 9, 15, 18, 21, 26, 27, 29, 34, 35, 37, 40, 43, 50 GND VCC_3V3 PI 3.3V DC supply. Mini card ground. The typical supply voltage of UC15 Mini PCIe is 3.3V. In the 2G networks, the input peak current may reach to 2.7A during the transmitting time, therefore the power supply must be able to provide enough current, and a bypass capacitor of no less than 100F with low ESR should be used to prevent the voltage from dropping. The following figure shows a reference design of power supply. The precision of resistor R2 and R3 is 1%, and the capacitor C3 needs a low ESR. Figure 3: Reference Design of Power Supply 3.4. UART Interface The following table shows the pin definition of the UART interface. UC15_Mini_PCIe_Hardware_Design Confidential / Released 18 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table 6: Pin Definition of the UART Interface Pin No. Pin Name I/O Description Power Domain 11 13 17 23 25 31 33 UART_RX DI UART receives data UART_TX DO UART transmits data UART_RI DO UART ring indicator UART_CTS DI UART clear to send UART_RTS DO UART request to send UART_DTR UART_DCD DI DO UART data terminal ready UART data carrier detection 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V The UART interface supports 300, 600, 1200, 4800, 9600, 19200, 38400, 57600, 115200 and 230400bps baud rate. The default is 115200bps. Autobauding is not supported. This interface can be used for data transmission and AT communication. UC15 Mini PCIe is designed as the DCE, and the DCE-DTE connection of UART interface is shown as below. Figure 4: The DCE-DTE Connection of UART Interface The following figure is an example of connection between UC15 Mini PCIe and PC. Since the UART interface does not support the RS-232 level, RS-232 level translator IC must be inserted between module and PC. The following figure shows the reference design of RS232 level match circuit. UC15_Mini_PCIe_Hardware_Design Confidential / Released 19 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Figure 5: RS232 Level Match Circuit NOTES 1. The hardware flow control is disabled by default. AT command AT+IFC=2,2 is used to enable the hardware flow control. AT command AT+IFC=0,0 is used to disable the hardware flow control. For more details, please refer to document [2]. 2. AT command AT+IPR is used to set the baud rate of the UART. Please refer to document [2] for details. 3. UART_DTR supports sleep control function. Driving it to low level will wake up the module, and it can be disabled by command AT+QCFG="pwrsavedtr",0. Meanwhile, the rising edge on UART_DTR will let the module exit from data mode. Refer to document [2] of command AT&D for details. 4. UART_DCD is used as data transferring indication. You can refer to document [2] for details of AT&C command. This pin can also be used as AP_READY function, which can detect the host sleep state to avoid the URC loss during the time when the host is waking up from the sleep state. For details about AP_READY, please contact Quectel technical support. 3.5. USIM Card Interface The following table shows the pin definition of the USIM card interface. Table 7: Pin Definition of the USIM Card Interface Pin No. Pin Name I/O Description Power Domain 8 USIM_VDD PO Power for the USIM/SIM card. 1.8V/3.0V UC15_Mini_PCIe_Hardware_Design Confidential / Released 20 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 10 12 14 USIM_DATA USIM_CLK IO DO USIM/SIM data signal. USIM/SIM clock signal. USIM_RST DO USIM/SIM reset signal. 1.8V/3.0V 1.8V/3.0V 1.8V/3.0V UC15 Mini PCIe supports 1.8V and 3.0V USIM cards. The following figure shows the reference design of the 6-pin USIM card. Figure 6: Reference Circuit of the 6 Pin USIM Card In order to enhance the reliability and availability of the USIM card in your application, please follow the criteria below in the USIM circuit design:

Keep layout of USIM card as close to the module as possible. Assure the length of the trace as less than 200mm as possible. Keep USIM card signal away from RF and power supply alignment. The decouple capacitor of USIM_VDD should be less than 1uF and must be close to USIM connector. To avoid cross-talk between USIM_DATA and USIM_CLK, keep them away from each other and shield them with surrounding ground. In order to offer good ESD protection, it is recommended to add TVS such as WILL

(http://www.willsemi.com) ESDA6V8AV6. The 22 resistors should be added in series between the module and USIM card so as to suppress the EMI spurious transmission and enhance the ESD protection. The 33pF capacitors are used for filtering interference of EGSM900. Please note that the USIM peripheral circuit should be close to the USIM connector. The pull-up resistor on USIM_DATA line can improve anti-jamming capability when long layout trace and sensitive occasion are applied. UC15_Mini_PCIe_Hardware_Design Confidential / Released 21 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design For 6-pin USIM connector, it is recommended to use Amphenol C707 10M006 512 2. Please visit http://www.amphenol.com for more information. Figure 7: Amphenol C707 10M006 512 2 USIM Card Connector Table 8: Pin Description of Amphenol USIM Card Connector Name VDD RST CLK GND VPP DATA I/O Pin C1 C2 C3 C5 C6 C7 Function USIM card power supply USIM card reset USIM card clock Ground Not connected USIM card data UC15_Mini_PCIe_Hardware_Design Confidential / Released 22 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 3.6. USB Interface The following table shows the pin definition of USB interface. Table 9: USB Pin Description Pin No. Pin Name I/O Description Comment 36 38 USB_DM USB_DP IO IO USB differential data (-). Require differential impedance of 90. USB differential data (+). Require differential impedance of 90. UC15 Mini PCIe is compliant with USB 2.0 specification. It can only be used as a slave device. Meanwhile, it supports high speed (480 Mbps), full speed (12 Mbps) and low speed (1.5 Mbps) mode. The USB interface can be used for AT command, data transmission, software debug and firmware upgrade. The following figure shows the reference circuit of USB interface. Module VCC_MCU USB_DM USB_DP GND Differential layout NM_2pF MCU VCC USB_DM USB_DP GND Figure 8: Reference Circuit of USB Interface To ensure the USB interface design corresponds with the USB 2.0 specification, please comply with the following principles. It is important to route the USB signal traces as differential pairs with total grounding. The impedance of USB differential trace is 90ohm. Do not route signal traces under crystals, oscillators, magnetic devices and RF signal traces. It is important to route the USB differential traces in inner-layer with ground shielding, and not only upper and lower layer but also right and left side should be shielded. If you use the USB connector, you should install the ESD components as close to the USB connector as possible. Pay attention to the influence of junction capacitance of ESD component on USB data lines. Typically, the capacitance value should be less than 2pF (e.g.ESD9L5.0ST5G). UC15_Mini_PCIe_Hardware_Design Confidential / Released 23 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design NOTES There are three preconditions when enabling UC15 Mini PCIe to enter the sleep mode:

1. Execute AT command AT+QSCLK=1 to enable the sleep mode. Refer to document [2]. 2. UART_DTR pin should be kept in high level (pull-up internally). 3. USB interface on Mini PCIe must be connected with your USB interface, and guarantee USB devices are in the suspended state. 3.7. Audio Interface 3.7.1. Digital Audio Interface UC15 Mini PCIe Telematics version provides one Pulse Code Modulation (PCM) digital audio interface, which supports the following modes. Short sync mode (works as both master and slave) Long sync mode (works as master only) When module works in the short sync mode, PCM_CLK=2048kHz and PCM_SYNC=8kHz. The data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC falling edge represents the MSB. When module works in the long sync mode, PCM_CLK=128kHz and PCM_SYNC=8kHz. The data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC rising edge represents the MSB. The following figures show timing relationship of these two modes. Figure 9: Short Sync Mode Timing UC15_Mini_PCIe_Hardware_Design Confidential / Released 24 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Figure 10: Long Sync Mode Timing I2C interface can be used to work with PCM interface for the audio codec design. The following table shows the pin definition of PCM and I2C interfaces. Table 10: Pin Definition of PCM and I2C Interface Description Power Domain I2C clock signal Require external pull-up to 2.6V. I2C data signal Require external pull-up to 2.6V. Pin No. Pin Name I2C_SCL I2C_SDA PCM_CLK I/O DO IO IO 30 32 45 47 49 51 PCM clock signal PCM_DOUT DO PCM data output PCM_DIN PCM_SYNC DI IO PCM data input PCM frame sync signal 2.6V 2.6V 2.6V 2.6V Module firmware has integrated the configuration on NAU8814 application with I2C interface, and works in short sync mode by default. You can enable this configuration with command AT+QDAI=2, and AT+QAUDPATH=2 will configure the audio channel to PCM interface, AT+QAUDPATH=0 configures the audio channel to analog audio interface. Refer to document [2] for details. UC15_Mini_PCIe_Hardware_Design Confidential / Released 25 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design The following figure shows the reference design of PCM interface with external codec IC. Figure 11: Reference Circuit of PCM Application with Audio Codec NOTE It is recommended to reserve RC (R=22, C=22pF) circuit on the PCM lines, especially for PCM_CLK. 3.7.2. Analog Audio Interface UC15 Mini PCIe Telematics version supports one differential input and output analog audio interface, and this interface works as the default audio channel. The following tables show the pin definition and characteristics of analog audio interface. Table 11: Pin Definition of Analog Audio Interface Pin No. Pin Name I/O Description 1 3 5 7 MICP MICN SPKP SPKN AI AI AO AO Audio positive input. Audio negative input. Audio positive output. Audio negative output. UC15_Mini_PCIe_Hardware_Design Confidential / Released 26 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table 12: Input Characteristics Parameter Working Voltage Working Current Min. 1.65 20 Table 13: Output Characteristics Parameter Supply Voltage Load Resistance Output Power Min. 2.0 25.6 Typ. 1.8 Typ. 2.1 32 50 Max. 1.95 1000 Max. 2.2 Unit V uA Unit V ohm mW The following parts show the reference design of audio applications. Figure 12: Microphone Reference Design UC15_Mini_PCIe_Hardware_Design Confidential / Released 27 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Figure 13: Reference Design of Receiver Figure 14: Reference Design with an Amplifier for Speaker Texas Instruments TPA6205A1 is recommended for a suitable differential audio amplifier. Close to module GND 33pF 0603 33pF 0603 33pF 0603 10pF 0603 10pF 0603 10pF 0603 GND Module MICN MICP SPKP Close to connector Differential layout 4.7uF GND 10pF 0603 33pF 0603 68R 22uF 0R 10pF 0603 GND AGND 3 4 2 1 AGND 33pF 0603 GND Earphone Interface Figure 15: Reference Design of Earphone UC15_Mini_PCIe_Hardware_Design Confidential / Released 28 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design You can use AT+QMIC to adjust the input gain level of microphone, use AT+CLVL to adjust the output gain level of receiver and speaker. AT+QSIDET is to set the side-tone gain level. For more details, please refer to document [2]. The 33pF capacitors and 10pF capacitors are applied for filtering out 850/900/1800/1900MHz RF interference. However, the self-resonant frequency point of capacitor largely depends on the material and production technique. Therefore, you should depend on the capacitor vendor to choose the most suitable capacitor for filtering out GSM850, EGSM900, DCS1800 and PCS1900 separately. In order to decrease radio or other signal interference, RF antenna should be kept away from audio interface and audio alignment. Power alignment and audio alignment should not be parallel, and power alignment should be far away from audio alignment. The differential audio traces should be placed according to the differential signal layout rules. 3.8. Control Signals The following table shows the pin definition of control signals. Table 14: Description of Control Signal Pins Pin No. Pin Name I/O Power Domain Description W_DISABLE#

DI 3.3V PERST#

DI 3.3V LED_WWAN#

OC 20 22 42 3.8.1. W_DISABLE# Signal Disable wireless communications. Active low. Functional reset to the card. Active low pulse. Active-low LED signal for indicating the state of the card. UC15 Mini PCIe provides W_DISABLE# signal to disable wireless communications through hardware operation. The following table shows the radio operational states of module. Please refer to document [2]

for related AT commands. Table 15: Radio Operational States W_DISABLE#

AT Commands Radio Operation High Level AT+CFUN=1 Enabled UC15_Mini_PCIe_Hardware_Design Confidential / Released 29 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design AT+CFUN=0 AT+CFUN=4 AT+CFUN=0 AT+CFUN=1 AT+CFUN=4 Disabled Disabled High Level Low Level 3.8.2. PERST# Signal The PERST# signal can be used to force a hardware reset on the card. You can reset the module by driving the PERST# to a low level voltage for 0.05~0.2s and then release it. The reset scenario is illustrated in the following figure. VCC_3V3 PERST#

Module Status 0.05~0.2s 5s VIH 2.3V VIL 0.35V RUNNING RESETTING RUNNING Figure 16: Timing of Resetting Module 3.8.3. LED_WWAN# Signal The LED_WWAN# signal of UC15 Mini PCIe is used to indicate the network status of the module, which can absorb the current up to 40mA. According to the following circuit, in order to reduce the current of the LED, a resistor must be placed in series with the LED. The LED is emitting light when the LED_WWAN#

output signal is active low. Figure 17: Reference Circuit of LED_WWAN#

The following table shows the indications of network status of the LED_WWAN# signal. UC15_Mini_PCIe_Hardware_Design Confidential / Released 30 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table 16: Indication of Network Status LED_WWAN#

Low Level (Light on) High-impedance (Light off) Description Registered network. No network coverage or not registered. W_DISABLE# signal is in low level. AT+CFUN=0 or AT+CFUN=4. Module gets into sleep mode. 3.9. Antenna Interface The following figures show the location of antenna interface and describe the overall size of RF connector. Figure 18: UC15 Mini PCIe Antenna Interface Figure 19: Dimensions of the RF Connector (Unit: mm) UC15_Mini_PCIe_Hardware_Design Confidential / Released 31 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design You can use U.FL-LP serial connector listed in the following figure to match the ECT818000117. For more details, please visit http://www.hirose.com. Figure 20: Mechanicals of UF.L-LP Connectors The following table shows the requirements on GSM/UMTS antenna. Table 17: Antenna Requirements Type Requirements GSM850/EGSM900/UMTS850 Cable insertion loss < 0.5dB. DCS1800/PCS1900//UMTS1900 Cable insertion loss < 0.9dB. UC15_Mini_PCIe_Hardware_Design Confidential / Released 32 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 4 Electrical and Radio Characteristics 4.1. General Description This chapter mainly describes the following electrical and radio characteristics of UC15 Mini PCIe:

Power supply requirements Current consumption RF characteristics ESD characteristics IO requirements 4.2. Power Supply Requirements The input voltage of UC15 Mini PCIe is 3.3V9%, as specified by PCI Express Mini CEM Specifications 1.2. The following table shows the power supply requirements of UC15 Mini PCIe. Table 18: Power Supply Requirements Parameter Description VCC_3V3 Power supply Min. 3.0 Typ. 3.3 Max. 3.6 Unit V 4.3. IO Requirements The following table shows the IO requirements of UC15 Mini PCIe. UC15_Mini_PCIe_Hardware_Design Confidential / Released 33 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Table 19: IO Requirements Parameter Description Min. Max. Unit Input high voltage 0.7*VDDIO VDDIO+0.3 Input low voltage

-0.3 0.2*VDDIO Output high voltage VDDIO-0.5 VDDIO Output low voltage 0 0.4 V V V V VIH VIL VOH VOL NOTES 1. VDDIO=2.6V for PCM interface, and 3.3V for other digital interfaces. 2. The maximum value of VIL for PERST# signal is 0.35V. 4.4. Current Consumption The current consumptions of UC15 Mini PCIe in different scenarios are respectively shown below. Table 20: Current Consumption Description Conditions Sleep Idle GSM Voice Call UMTS Voice Call GPRS Data Transfer GSM (USB disconnected) @DRX=2 GSM (USB disconnected) @DRX=9 UMTS (USB disconnected) @DRX=6 UMTS (USB disconnected) @DRX=9 GSM(USB connected) @DRX=2 GSM(USB disconnected) @DRX=2 UMTS(USB connected) @DRX=6 UMTS(USB disconnected) @DRX=6 GSM850 @PCL5 EGSM900 @PCL5 DCS1800 @PCL0 PCS1900 @PCL0 UMTS850 @max power UMTS1900 @max power GSM850 (1UL/1DL) @PCL5 GSM850 (2UL/3DL) @PCL5 EGSM900 (1UL/1DL) @PCL5 Typ. 5.5 3.5 5.8 3.3 80 50 80 45 340 320 262 260 570 650 300 410 290 Unit mA mA mA mA mA UC15_Mini_PCIe_Hardware_Design Confidential / Released 34 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design EGSM900 (2UL/3DL) @PCL5 DCS1800 (1UL/1DL) @PCL0 DCS1800 (2UL/3DL) @PCL0 PCS1900 (1UL/1DL) @PCL0 PCS1900 (2UL/3DL) @PCL0 UMTS850 (HSDPA) @max power UMTS1900 (HSDPA) @max power 401 241 333 235 320 500 570 mA UMTS Data Transfer 4.5. RF Characteristics The following tables show output power and receiving sensitivity of conducted RF of UC15 Mini PCIe module. Table 21: Output Power of Conducted RF Frequency GSM850 EGSM900 DCS1800 PCS1900 GSM850 (8-PSK) EGSM900 (8-PSK) Max. 33dBm2dB 33dBm2dB 30dBm2dB 30dBm2dB 27dBm3dB 27dBm3dB DCS1800 (8-PSK) 26dBm+3/-4dB PCS1900 (8-PSK) 26dBm+3/-4dB UMTS850 UMTS1900 24dBm+1/-3dB 24dBm+1/-3dB Table 22: Receiving Sensitivity of Conducted RF Min. 5dBm5dB 5dBm5dB 0dBm5dB 0dBm5dB 5dBm5dB 5dBm5dB 0dBm5dB 0dBm5dB

-56dBm5dB

-56dBm5dB Frequency GSM850 Receive Sensitivity (Typ.)

-108.5dBm UC15_Mini_PCIe_Hardware_Design Confidential / Released 35 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design EGSM900 DCS1800 PCS1900 UMTS850 UMTS1900

-108.5dBm

-108.5dBm

-108.5dBm

-110dBm

-110dBm 4.6. ESD Characteristics The following table shows characteristics of UC15 Mini PCIe ESD. Table 23: ESD Characteristics Parameter Contact Discharge Air Discharge Unit Power Supply and GND Antenna Interface USB Interface USIM Interface Others 5 4 4 4 0.5 10 8 8 8 1 kV kV kV kV kV UC15_Mini_PCIe_Hardware_Design Confidential / Released 36 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 5 Mechanical Dimensions 5.1. General Description This chapter mainly describes the following dimensions of UC15 Mini PCIe:

Mechanical Dimensions of UC15 Mini PCIe Standard Dimensions of Mini PCI Express Packaging 5.2. Mechanical Dimensions of UC15 Mini PCIe Figure 21: Mechanical Dimensions of UC15 Mini PCIe (Unit: mm) UC15_Mini_PCIe_Hardware_Design Confidential / Released 37 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design 5.3. Standard Dimensions of Mini PCI Express The following figure shows the standard Dimensions of Mini PCI Express. Please refer to document [1]

for detail A and detail B. Figure 22: Standard Dimensions of Mini PCI Express (Unit: mm) UC15 Mini PCIe adopts a standard Mini PCI Express connector which compiles with the standards listed in the document [1]. The following figure takes the Molex 679100002 as an example. UC15_Mini_PCIe_Hardware_Design Confidential / Released 38 / 40 UMTS/HSDPA Module Series UC15 Mini PCIe Hardware Design Figure 23: Dimensions of the Mini PCI Express Connector (Unit: mm) 5.4. Packaging The UC15 Mini PCIe is packaged in tray. Each tray contains 10pcs of modules. The smallest package of UC15 Mini PCIe contains 100pcs. UC15_Mini_PCIe_Hardware_Design Confidential / Released 39 / 40 UMTS/HSPA Module UC15 Mini PCIe Hardware Design 6 Appendix Reference Table 24: Related Documents Document Name Remark PCI Express Mini Card Electromechanical Specification Revision 1.2 Mini PCI Express Specification. Quectel_UC15_AT_Commands_Manual UC15 AT Commands Manual. SN

[1]

[2]

Table 25: Terms and Abbreviations Abbreviation Description bps CS CSD CTS DCE DL DTE DTR EMC ESD GMSK GSM HSDPA Bits Per Second Coding Scheme Circuit Switched Data Clear to Send Data Communications Equipment (typically module) Down Link Data Terminal Equipment (typically computer, external controller) Data Terminal Ready Electromagnetic Compatibility Electrostatic Discharge Gaussian Minimum Shift Keying Global System for Mobile Communications High Speed Downlink Packet Access UC15_Mini_PCIe_Hardware_Design Confidential / Released 40 / 40 UMTS/HSPA Module UC15 Mini PCIe Hardware Design I/O kbps LED Mbps MMS MO MT PAP PCM PDU PPP RF RX SIM SMS TDMA TE TX UART UL UMTS URC USSD Input/Output Kilo Bits Per Second Light Emitting Diode Million Bits Per Second Multimedia Messaging Service Mobile Originated Mobile Terminated Password Authentication Protocol Pulse Code Modulation Protocol Data Unit Point-to-Point Protocol Radio Frequency Receive Direction Subscriber Identification Module Short Message Service Time Division Multiple Access Terminal Equipment Transmitting Direction Universal Asynchronous Receiver & Transmitter Up Link Universal Mobile Telecommunications System Unsolicited Result Code Unstructured Supplementary Service Data WCDMA Wideband Code Division Multiple Access UC15_Mini_PCIe_Hardware_Design Confidential / Released 41 / 40