User manual Project Name: M14Q2SG Author: Wistron NeWeb Corporation Revision: 1.0 Revision Date: 2019/02/21 Normal Internal Use Confidential Restricted Confidential 1 / 37 User Manual Contact Information Sale and Technical Support SupportIoT.MBA@wnc.com.tw Website www.wnc.com.tw Revision History Rev. #
1.0 Author Summary of Changes WNC MBU Draft release Date 2019/2/21 Normal Internal Use Confidential Restricted Confidential 2 / 37 User Manual Wistron NeWeb Corporation THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS PROPRIETARY AND IS THE EXCLUSIVE PROPERTY OF WNC AND SHALL NOT BE DISTRIBUTED, REPRODUCED, OR DISCLOSED IN WHOLE OR IN PART WITHOUT PRIOR WRITTEN PERMISSION FROM WNC. LIMITATION OF LIABILITY THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS PURELY FOR DESIGN REFERENCE AND SUBJECT TO REVISION BY WNC AT ANY TIME. NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS GRANTING ANY WARRANTY OR RIGHT TO USE THE MATERIAL CONTAINED HEREIN WITHOUT WNCS PRIOR EXPRESS WRITTEN CONSENT. WNC SHALL NOT BE LIABLE FOR ANY USE, APPLICATION OR DEVELOPMENT DERIVED FROM THE MATERIAL WITHOUT SUCH PRIOR EXPRESS WRITTEN CONSENT. FEDERAL COMMUNICATION COMMISSION INTERFERENCE STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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 of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that Normal Internal Use Confidential Restricted Confidential 3 / 37 User Manual to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC Caution:
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 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 & your body. This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. Normal Internal Use Confidential Restricted Confidential 4 / 37 User Manual End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: Contains FCC ID: NKRM14Q2SG. The grantee's FCC ID can be used only when all FCC compliance requirements are met. Manual Information To the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. INDUSTRY CANADA STATEMENT This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
1) 2) this device may not cause interference, and 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) 2) l'appareil ne doit pas produire de brouillage, et l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Normal Internal Use Confidential Restricted Confidential 5 / 37 User Manual CAN ICES-3(B)/ NMB-3(B) This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter, except tested built-in radios. Cet appareil et son antenne ne doivent pas tre situs ou fonctionner en conjonction avec une autre antenne ou un autre metteur, exception faites des radios intgres qui ont t testes. The County Code Selection feature is disabled for products marketed in the US/ Canada. La fonction de slection de l'indicatif du pays est dsactive pour les produits commercialiss aux tats-Unis et au Canada. This radio transmitter (IC ID : 4441A-M14Q2SG/model: M14Q2SG) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Cet metteur radio (IC ID : 4441A-M14Q2SG/model: M14Q2SG) a t approuv par l'industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous avec le gain maximum admissible indiqu. Types d'antennes non inclus dans cette liste, ayant un gain suprieur au gain maximum indiqu pour cette type, sont strictement interdits pour une utilisation avec cet appareil. List of antenna information Components Frequency (MHz) Antenna type Brand Antenna gain (dBi) WWAN 700 ~ 960 1710 ~2700 Dipole Cortec
-3.5 0.6 Normal Internal Use Confidential Restricted Confidential 6 / 37 User Manual Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body. Dclaration d'exposition aux radiations:
Cet quipement est conforme aux limites d'exposition aux rayonnements IC tablies pour un environnement non contrl. Cet quipement doit tre install et utilis avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. This device is intended only for OEM integrators under the following conditions: (For module device use) 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Cet appareil est conu uniquement pour les intgrateurs OEM dans les conditions suivantes: (Pour utilisation de dispositif module) 1) L'antenne doit tre installe de telle sorte qu'une distance de 20 cm est respecte entre l'antenne et les utilisateurs, et 2) Le module metteur peut ne pas tre complant avec un autre metteur ou antenne. Tant que les 2 conditions ci-dessus sont remplies, des essais supplmentaires sur l'metteur ne seront pas ncessaires. Toutefois, l'intgrateur OEM est toujours responsable des essais sur son produit final pour toutes exigences de conformit supplmentaires requis pour ce module install. Normal Internal Use Confidential Restricted Confidential 7 / 37 User Manual IMPORTANT NOTE:
In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the Canada authorization is no longer considered valid and the IC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate Canada authorization. NOTE IMPORTANTE:
Dans le cas o ces conditions ne peuvent tre satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre metteur), l'autorisation du Canada n'est plus considr comme valide et l'ID IC ne peut pas tre utilis sur le produit final. Dans ces circonstances, l'intgrateur OEM sera charg de rvaluer le produit final (y compris l'metteur) et l'obtention d'une autorisation distincte au Canada. Normal Internal Use Confidential Restricted Confidential 8 / 37 User Manual End Product Labeling FOR MOBILE DEVICE USAGE (>20cm/low power) This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: Contains IC: 4441A-M14Q2SG. Plaque signaltique du produit final Ce module metteur est autoris uniquement pour une utilisation dans un dispositif o l'antenne peut tre installe de telle sorte qu'une distance de 20cm peut tre maintenue entre l'antenne et les utilisateurs. Le produit final doit tre tiquet dans un endroit visible avec l'inscription suivante:
"Contient des IC: 4441A-M14Q2SG ". Manual Information To the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Manuel d'information l'utilisateur final L'intgrateur OEM doit tre conscient de ne pas fournir des informations l'utilisateur final quant la faon d'installer ou de supprimer ce module RF dans le manuel de l'utilisateur du produit final qui intgre ce module. Le manuel de l'utilisateur final doit inclure toutes les informations rglementaires requises et avertissements comme indiqu dans ce manuel. Normal Internal Use Confidential Restricted Confidential 9 / 37 User Manual Contents Contact Information...................................................................................................................................... 2 Revision History.............................................................................................................................................2 Contents.................................................................................................................................................... 10 1. Introduction..........................................................................................................................................12 1.1. Features.....................................................................................................................................12 2. Electrical Specifications................................................................................................................... 13 2.1. Host interface pin assignments..............................................................................................13 2.1.1. LGA Pad Diagram........................................................................................................ 13 2.1.2. Pin Assignments...........................................................................................................14 2.2. Power supply............................................................................................................................ 16 2.3. USB interface............................................................................................................................18 2.4. SGMII interface.........................................................................................................................19 2.5. HSIC interface.......................................................................................................................... 20 2.6. SIM interface.............................................................................................................................21 2.7. Control interface (wakeup)..................................................................................................... 21 2.8. Digital interface.........................................................................................................................22 2.8.1. JTAG Interface..............................................................................................................22 2.8.2. SPI Master Interface....................................................................................................22 2.8.3. PCM Interface...............................................................................................................23 2.8.4. I2S Interface..................................................................................................................23 2.8.5. I2C Interface................................................................................................................. 24 2.8.6. UART Interface.............................................................................................................24 2.8.7. ADC Interface............................................................................................................... 25 3. RF Specifications................................................................................................................................26 3.1. RF connections.........................................................................................................................26 3.2. RF Layout guidance.................................................................................................................26 3.3. Antenna Guidance................................................................................................................... 28 3.4. Interference and sensitivity.....................................................................................................28 3.5. Radiated sensitivity measurement........................................................................................ 29 3.6. GNSS external circuit design................................................................................................. 29 3.7. Supported frequencies............................................................................................................ 29 4. Software Interface.............................................................................................................................. 31 4.1. Support tools.............................................................................................................................31 4.2. USB interface............................................................................................................................31 5. Mechanical and Environmental Certifications............................................................................32 Normal Internal Use Confidential Restricted Confidential 10 / 37 User Manual 5.1. PCBA Form Factor...................................................................................................................32 5.2. Labeling..................................................................................................................................... 35 6. Regulatory Compliance and Certification....................................................................................36 6.1. Certification testing.................................................................................................................. 36 7. Safety Recommendation.................................................................................................................. 37 Normal Internal Use Confidential Restricted Confidential 11 / 37 User Manual 1. Introduction The M14Q2SG is a Cat. 1 LTE modem which incorporates an application CPU subsystem and a host of peripheral interfaces and functions uniquely designed to address the power/performance/cost requirements of IoT and M2M applications. The chip is based on Qualcomms MDM architecture which offers OFDMA-related software based signal processing capabilities that significantly exceed traditional communications ARM cores. The CPU subsystem features a high performance Cortex A7 microprocessor running a Linux OS with a variety of host interfaces including USB 2.0, SGMII, SPI, UART, PCM, I2C, HSIC, USIM & SDC. The module supports integrated VoLTE functionality, with a variety of narrow- and wide-band CODECs and full IMS signaling. 1.1. Features 3GPP category support: LTE Cat. 1 with 10/5 Mbps for DL/UL Supports LTE B2/4/5/12/25/26 Supports WCDMA B2/5 Supports GPS/GLONASS Ultra-high-performance Cortex A7 microprocessor Modem subsystem (MSS) Integrated support for VoLTE Resource and power management (RPM) subsystem Optimized for M2M and IoT markets Interfaces HS USB 2.0 with integrated PHY SGMII interface HSIC interface Dual UART interfaces (4 bit and 2 bit) for data transfer and diagnostic tools SDC1: First SPI interface I2C: Second SPI interface USIM interface GPIOs ADC PCM/I2S JTAG interface Normal Internal Use Confidential Restricted Confidential 12 / 37 User Manual 2. Electrical Specifications 2.1. Host interface pin assignments 2.1.1. LGA Pad Diagram Figure 1. LGA pad diagram (top view) Normal Internal Use Confidential Restricted Confidential 13 / 37 User Manual 2.1.2. Pin Assignments Interface Family RF Interfaces User Identity Module USB 2.0 HSIC SGMII UART1 UART2 I2C/2nd_ SPI Data Interfaces Table 1. Pin interface family Signal ANT1_DRX ANT_GNSS ANT0_TRX VREG_L6_UIM1 UIM1_DATA UIM1_CLK UIM1_RESET UIM1_DETECT USB_HS_DP USB Detect USB_HS_DM HSIC USB_STROBE HSIC USB_DATA SGMII_RX_P SGMII_RX_M SGMII_TX_P SGMII_TX_M SGMII_MDIO SGMII_MDC UART1_CTS_N UART1_RFR_N UART1_RX UART1_TX MDM_DBG_UART_RX MDM_DBG_UART_TX I2C_SDA 2nd_SPI_EN_1 I2C_SCL 2nd_SPI_CLK NC SPI_MOSI NC Description Diversity antenna Reserved for GNSS receiver Main Antenna Power source for UIM Data in/out Clock signal Reset signal UIM Detect signal USB Data Positive USB Detect USB Data Negative HSIC USB Strobe HSIC USB Data SGMII receive - plus SGMII receive - minus SGMII transmit - plus SGMII transmit - minus SGMII Management data SGMII Management data clock Clear To Send for UART 1 UART ready for frame Receive for UART 1 Transmit for UART 1 Receive for UART 2 Transmit for UART 2 Data in/out 2nd_SPI chip select Clock signal 2nd_SPI serial clock NC 2nd_SPI master out slave in NC I/O I I I/O O I/O O O I/O I/O I I/O I/O I/O I I O O I/O I/O I O I O I O I/O O O O O Normal Internal Use Confidential Restricted Confidential 14 / 37 User Manual I 2nd_SPI master in slave out I/O SDC1_DATA_3 O 1st_SPI master out slave in I/O SDC1_DATA_2 I 1st_SPI master in slave out I/O SDC1_DATA_1 O 1st_SPI chip select I/O SDC1_DATA_0 O 1st_SPI serial clock I/O SDC1_CMD O SDC1_CLK O Wireless WAN Radio State I Power On the module Module wakes up host OR GPIO O I Hostwakes upmodule OR GPIO. Reset the module I O Voltage Reference Output Main Power I I GND I/O Digital I/O ADC_CONVENTOR I IO PCM_DIN IO AUX_BT_I2S_DATA0 PCM_DOUT IO IO AUX_BT_I2S_DATA1 PCM_CLK O O AUX_BT_I2S_SCK O PCM_SYNC AUX_BT_I2S_WS O I Reserved For Future Use JTAG reset for debug I I JTAG clock input I JTAG data input JTAG data output O I JTAG mode select input JTAG reset O SPI_MISO SDC1_DATA_3 1st_SPIM_MOSI SDC1_DATA_2 1st_SPIM_MISO SDC1_DATA_1 1st_SPIM_EN_1 SDC1_DATA_0 1st_SPIM_CLK SDC1_CMD SDC1_CLK WWAN_STATE POWER_ON WAKEUP_OUT WAKEUP_IN RESET VREF VCC GND GPIO ADC_CONVENTOR PCM_DIN AUX_BT_I2S_DATA0 PCM_DOUT AUX_BT_I2S_DATA1 PCM_CLK AUX_BT_I2S_SCK PCM_SYNC AUX_BT_I2S_WS RFU MDM_JTAG_SRST_N MDM_JTAG_TCK MDM_JTAG_TDI MDM_JTAG_TDO MDM_JTAG_TMS MDM_JTAG_TRST_N SDC1/1st_SPI Module Control and State Interfaces Power and Ground General Purpose AUDIO PCM/I2S RFU RFU Debug JTAG Normal Internal Use Confidential Restricted Confidential 15 / 37 User Manual Force_USB_BOOT MDM_PS_HOLD Force_USB_BOOT_CONFIG PS_HOLD Force USB BOOT CONFIG I I Table 2. Digital I/O characteristics Note: This is preliminary data for reference and will be updated according to the final version of the MDM9207 datasheet. 2.2. Power supply LTE module power input is VCC. The internal power chipset will transfer VCC to other power level. Table 3. Power supply specifications Power Pin Name Pads Description VCC1 to VCC6 Nos. 37 to 42 Main Power Supply VCC The M14Q2SG includes an integrated power manager enabling single and direct voltage supply from the battery, reducing the overall bill of materials. Voltage Level (V) Min. 3.3 Typ. 3.8 Max. 4.2 Normal Internal Use Confidential Restricted Confidential 16 / 37 User Manual Figure 2. M14Q2SG internal power path Layout Suggestion: Each power trace should possess sufficient line width to withstand its respective current listed in the table below:
Net Name VCC(16) total UIM_VCC VREF Current Value 2A 150 mA 300 mA Normal Internal Use Confidential Restricted Confidential 17 / 37 User Manual 2.3. USB interface The M14Q2SG module complies with USB 2.0 high-speed protocol. The USB input/output lines follow USB 2.0 specifications. Table 4. Signals of the USB interface Name Description D+
D USB data positive
(low-/full-speed) USB data positive
(high-speed) USB data negative
(low-/full-speed) USB data negative
(high-speed) Input/Output
(Direction to module) Input High Input Low Output High Output Low Input High Input Low Output High Output Low Input High Input Low Output High Output Low Input High Input Low Output High Output Low Voltage Level (V) Typ. 3.3 3.3 0.38 3.3 3.3 0.38 Max. 3.6 0.8 3.6 0.3 0.44 0.01 0.44 0.01 3.6 0.8 3.6 0.3 0.44 0.01 0.44 0.01 Min. 2 0 2.8 0.3 0 0.36 0 2 0 2.8 0.3 0 0.36 0 The layout design of this circuit on the host board should comply with the USB 2.0 high-speed protocol. Layout suggestion:
Differential impedance: 90 Space to other signals should be at least 20 mils Intra-lane length difference should be less than 150 mils Maximum length for each trace:150 mm Signals lengths on M14Q2SG are tuned as below:
Function Net USB USB_Dp USB_Dn Length (mil) 545.54 503.04 Normal Internal Use Confidential Restricted Confidential 18 / 37 User Manual 2.4. SGMII interface The M14Q2SG includes integrated Ethernet MAC with SGMII interfaces with the following key features:
IEEE 802.3 compliance Full duplex at 1 Gbps Half/full duplex for 10/100 Mbps Supports VLAN tagging Supports IEEE 1588, Precision Time Protocol (PTP) Can be used to connect to external Ethernet PHYs such as AR8033 or to an external switch The following figures describe an example of the additional logic connection between the M14Q2SG and the Ethernet chip. Figure 3. SGMII circuit example Layout suggestion:
Differential impedance:100 Space to other signals: > 3x line width Lane-to-lane space: > 3x line width Intra-lane mismatch: < 0.7 mm Normal Internal Use Confidential Restricted Confidential 19 / 37 User Manual Signals lengths on the M14Q2SG are tuned as below:
Function Net SGMII SGMII_TX_P SGMII_TX_M SGMII_RX_P_C+SGMII_RX_P SGMII_RX_M_C+SGMII_RX_M 2.5. HSIC interface Length (mil) 617.11 642.13 661.40 675.06 The M14Q2SG includes a HSIC interface. This host interface can be connected to other application processor or interface-transfer chipset. Figure 4. HSIC circuit example Layout suggestion:
Single-end impedance: 50 Intra-lane mismatch: < 2 mm Maximum trace length:100 mm Signals lengths on the M14Q2SG are tuned as below:
Function Net HSIC HSIC_STB HSIC_DATA Length (mil) 287.29 315.04 Normal Internal Use Confidential Restricted Confidential 20 / 37 User Manual 2.6. SIM interface The M14Q2SG includes a SIM controller, interface pins, and a dedicated LDO (3.0 V or 1.8 V). The following figures describe the additional logic connection between the M14Q2SG and the SIM card. Figure 5. SIM card circuit (example) 2.7. Control interface (wakeup) In applications where power consumption is a major factor in performance metrics (such as battery-operated sensors that are based on IOT/M2M modem solution and also include a third party host), it is necessary to define a simple interface that will allow both the modem and the host to be able to enter low power states whenever possible and the other side to wake it up once required. For example, if the host has no data to transmit nor any other tasks, it may enter some low power state according to its own capabilities and configurations. If during that period the host is in a low power state and the modem suddenly receives data, it must wake-up the host. A similar requirement exists from the other side. For example, if the modem is in a low power state and suddenly the host must transmit data, it must be able to wake-up the modem. The interface consists of two signals: One is driven by the host and received by the modem; the other is driven by the modem and received by the host. Each side can wake the other side by toggling wakeup signal high and allowing the other side to go to Normal Internal Use Confidential Restricted Confidential 21 / 37 User Manual sleep when not needed by toggling it low. WAKEUP_IN (Host: Output, Modem: Input):
LOW: SoC does not require the MODEM (allowing it to sleep). HIGH: SoC requires the MODEM or acknowledges it is ready following a wakeup request from the MODEM. WAKEUP_OUT (Host: Input, Modem: Output):
LOW: The MODEM does not require the Host (allowing it to sleep) HIGH: The MODEM requires the Host or acknowledges it is ready following a wakeup request from the SoC. 2.8. Digital interface This section provides the required AC timing information relating to Module Digital Interfaces. 2.8.1. JTAG Interface There is one JTAG interface for LGA module debugging. Figure 6. JTAG schematic (example) 2.8.2. SPI Master Interface SPIM_CLK Output clock SPIM_CS Output, chip-select SPIM_MOSI Output, data to slave SPIM_MISO Input, data from slave Normal Internal Use Confidential Restricted Confidential 22 / 37 User Manual Timing Note: This part will be updated according to the final MDM9207 datasheet. 2.8.3. PCM Interface The LGA module provides one PCM digital audio interface. The PCM data bus voltage level is 1.8 V. Figure 7. PCM connection (example) 2.8.4. I2S Interface PCM and I2S share the same pins on the M14Q2SG; the PCM signal pins can be configured as an I2S interface. Config1 PCM_SYNC PCM_DIN PCM_DOUT PCM_CLK Config2 I2S_WS I2S_DATA0 I2S_DATA1 I2S_SCK Figure 8. I2S connection (example) Normal Internal Use Confidential Restricted Confidential 23 / 37 User Manual 2.8.5. I2C Interface Adding pull-high resistors to 1.8 V through the 2.2 k resistors is recommended. Figure 9. I2C connection (example) 2.8.6. UART Interface There are two UART interfaces: One is a 4 bit UART for high-speed data transfer, and the other is a 2 bit UART for diagnostic tools and debugging. Figure 10. UART connection (example) Normal Internal Use Confidential Restricted Confidential 24 / 37 User Manual 2.8.7. ADC Interface An Analog to Digital Converter (ADC) input is provided by the M14Q2SG. The converter is a 16 bit resolution, ranging from 0.1 V to 1.7 V, with a sampling rate of 2.4 MHz. Layout suggestion:
Should be protected by GND Should be protected from noise and other easily radiated signals Normal Internal Use Confidential Restricted Confidential 25 / 37 User Manual 3. RF Specifications 3.1. RF connections The M14Q2SG has three RF pads; developers may connect them via 50 traces to the main board. ANT0_TRX pad (Pin15) Primary RX/TX path ANT1_DRX pad (Pin21) Diversity path ANT_GNSS pad (Pin9) GNSS path 3.2. RF Layout guidance It is recommended that grounds not be present under the surface of the RF pads in the layout. Details are included below. The RF trace between RF pads and antenna should as shorter as possible with 50ohm characteristic impedance. Normal Internal Use Confidential Restricted Confidential 26 / 37 User Manual The characteristic impedance depends on the dielectric of PCB, the track width and the ground plane spacing. Microstrip type is required. The detail simulation as below. The RF trace of the test board which was used in the FCC test is defined as below. Normal Internal Use Confidential Restricted Confidential 27 / 37 User Manual 3.3. Antenna Guidance The antenna should be 50ohm characteristic impedance with the return loss of better than -10dB at the operation band. The antenna gain would affect the radiated power and regulator test result. 3.4. Interference and sensitivity This section includes tips to assist developers in identifying the interference that may affect the M14Q2SG when is it used in systems. Interference from other wireless devices Harmonics, inter-modulated signal generated from wireless devices that fall in RX ranges of the M14Q2SG, may result in degraded RX performance. It is highly recommended to check RX performance of entire systems within the shielding environment. Interference from host interface High-speed signal-switching elements in systems can easily couple noise into the module
(Ex.: DDR memory, LCD modules, DC-DC converter). Methods to avoid sources of interference Normal Internal Use Confidential Restricted Confidential 28 / 37 User Manual Antenna location is important; we recommend directing the antenna away from high-speed switching signals. Furthermore, the trace from the module to the antenna should be as short as possible and must be shielded by complete grounding. The M14Q2SG is well shielded; the high-speed elements on a system should have shielding reserved during the early stages of development. 3.5. Radiated sensitivity measurement Over-the-air testing can demonstrate the TRX ability of the whole system. Keys elements that affect the measurement are:
Module ability (refer Specification) Antenna Gain System noise source The OTA performance should be performed in an OTA chamber. 3.6. GNSS external circuit design One GNSS SAW filter, LNA, and another GNSS SAW filter need to be used between the module and antenna. in129 GPIO05Pin129 GPI 3.7. Supported frequencies Table 5. Band support Band LTE Band 2 LTE Band 4 LTE Band 5 LTE Band 12 LTE Band 25 LTE Band 26 Band WCDMA Band 2 WCDMA Band 5 Uplink (MHz) 1,8501,910 1,7101,755 824849 699716 1,850-1,915 814-849 Uplink (MHz) 1,8501910 824849 Downlink (MHz) 1,9301,990 2,1102,155 869894 729746 1,930-1,995 859-894 Downlink (MHz) 1,9301,990 869894 Normal Internal Use Confidential Restricted Confidential 29 / 37 User Manual Band LTE Band 2 LTE Band 4 LTE Band 5 LTE Band 12 LTE Band 25 LTE Band 26 Band GPS GLONASS Table 6. Bandwidth support Bandwidth 1.4 MHz 3 MHz 5 MHz 10 MHz 15 MHz 20 MHz
-
-
Table8. GPS and GLONASS support band Frequency 1574.4 - 1576.4 1597.5 - 1605.9
-
-
-
Unit MHz MHz Normal Internal Use Confidential Restricted Confidential 30 / 37 User Manual 4. Software Interface 4.1. Support tools The M14Q2SG is compatible with the following support tools:
WNC M14Q2SG Connection Manager (WNCCM) 4.2. USB interface The M14Q2SG supports 3GPP standard AT commands and proprietary AT commands; the MAL Manager SDK is also supported for Linux platforms. Normal Internal Use Confidential Restricted Confidential 31 / 37 User Manual 5. Mechanical and Environmental Certifications 5.1. PCBA Form Factor Dimensions 26.3 mm (typ.) 23.1 mm (typ.) 2.3 mm (typ.), tolerance: 0.15 mm Top view Right view Normal Internal Use Confidential Restricted Confidential 32 / 37 User Manual Bottom view Normal Internal Use Confidential Restricted Confidential 33 / 37 User Manual Pads location Pin1 location Figure 11. PCBA dimensions Normal Internal Use Confidential Restricted Confidential 34 / 37 User Manual 5.2. Labeling When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text:
Contains FCC ID: NKRM14Q2SG The grantee's FCC ID can be used only when all FCC compliance requirements are met Normal Internal Use Confidential Restricted Confidential 35 / 37 User Manual 6. Regulatory Compliance and Certification 6.1. Certification testing PTCRB, FCC,IC Normal Internal Use Confidential Restricted Confidential 36 / 37 User Manual 7. Safety Recommendation Be sure the use of this product is allowed in the 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, and aircraft Where there is a risk of explosion such as gasoline stations and oil refineries It is the responsibility of the user to comply with his or her countrys regulations and the specific environmental regulations. Do not disassemble the product; any mark of tampering will compromise the warrantys validity. We recommend following the instructions of the hardware user guides for a correct wiring of the product. The product must be supplied with a stabilized voltage source, and the wiring must conform to the security and fire-prevention regulations. This product must be handled with care; avoid any contact with the pins because electrostatic discharge may damage the product. Same caution must be taken regarding the SIM card; carefully check 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 of the functioning of the final product; therefore, care must be taken for the external components of the module as well as for project or installation issuesthere may be a risk of disturbing the GSM network or external devices or of having an impact on device security. If you have any doubts, please refer to the technical documentation and the relevant regulations in force. Every module must be equipped with a proper antenna with specific characteristics. The antenna must be installed with care in order to avoid any interference with other electronic devices. Normal Internal Use Confidential Restricted Confidential 37 / 37