Fibocom FM101-NA-20 Hardware Manual

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FM101-NA-20

Hardware Guide

V1.0

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Page 1 FM101-NA-20 Hardware Guide V1.0...
Page 2 Copyright Copyright ©2021 Fibocom Wireless Inc. All rights reserved. Without the prior written permission of the copyright holder, any company or individual is prohibited to excerpt, copy any part of or the entire document, or transmit the document in any form.
Page 7: Foreword
1.1. Document Description This document describes the electrical characteristics, RF performance, dimensions and application environment, etc. of the FM101-NA-20 wireless module. With the assistance of this document and other related documents, application developers can quickly understand the hardware functions of the FM101-NA-20 module and develop product hardware.
Page 8 Keep mobile device away from flammable gases. Turn off the mobile device when you are near to gas stations, oil depots, chemical plants or explosive workplaces. There are potential safety hazards when operating electronic equipment in any potentially explosive area. Copyright © Fibocom Wireless Inc.
Page 9: Product Overview
CA mode is 300 Mbps, and the maximum uplink rate is 50 Mbps. FM101-NA-20 is designed with M.2 package and is applicable to various scenarios such as CPE, VR/AR, gateway, Internet TV set-top box, and intelligent monitoring.
Page 10: Other Key Features
2Gb LPDDR2 + 2Gb NAND Flash Supported Linux/Android/Windows systems Class 3 (23.5dBm ± 2dB) for WCDMA bands Power class Class 3 (23dBm ± 2dB) for LTE bands Satellite GPS/GLONASS/Galileo/BDS positioning Support Audio interface Support PCM/I S digital audio interface Copyright © Fibocom Wireless Inc.
Page 11 3GPP standards. Storage temperature: –40°C to 90°C The storage temperature range of the module when the module is powered off. Software Through USB interface/FOTA upgrade Copyright © Fibocom Wireless Inc.
Page 12: Supported Ca Combinations
Table 5. CA combinations supported by FM101-NA-20 Combination 2A-2A/4A/5A/12A/13A/14A/29A/30A/46A/48A/66A/71A 4A-4A/5A/12A/13A/29A/30A/46A/71A 5A-5A/30A/46A/66A 7A-7A/12A 12A-30A/66A 13A-46A/66A 14A-30A/66A 29A-30A/66A 30A-66A 46A-66A 66A-66A/71A 41A-41A 2.4. Functional Block Diagram Functional block diagram shows the main hardware functions of the FM101-NA-20 Copyright © Fibocom Wireless Inc.
Page 13 Baseband section • PMIC • LPDDR2 • NAND • USB, PCIE, (U)SIM, PCM/I • WCDMA/LTE TDD/LTE FDD controller • RF section RF Transceiver • RF PA • RF Switch • RF filter • Antenna • Copyright © Fibocom Wireless Inc.
Page 14: Evaluation Board
2. Product Overview Figure 1. Functional block diagram 2.5. Evaluation Board Fibocom provides EVB-M.2 evaluation board to facilitate module debug and use. For how to use it, see FIBOCOM EVB-M2 User Guide. Copyright © Fibocom Wireless Inc.
Page 15: Pin Definition
3. Pin Definition 3. Pin Definition 3.1. Pin Distribution The FM101-NA-20 module uses M.2 packaging and have 75 pins in total. The following figure shows the pin distribution. Figure 2. Pin distribution Copyright © Fibocom Wireless Inc.
Page 16: Pin Function
3. Pin Definition 3.2. Pin Function The FM101-NA-20 module pin function is described in the following table. Table 6. LGA pin function description Reset Pin Name Pin Description Type Number Status NC, WWAN-PCIe is configured for FM101-NA-20 module, CONFIG_3 USB_SS interface type M.2...
Page 17 USB_SS interface type M.2 module S serial data receiving, CMOS I2S_RX reserved 1.8V CMOS WOWWAN# Wakeup host 1.8V S serial data transmission, CMOS I2S_TX reserved 1.8V Dynamic power control for SAR CMOS interrupt detection, active low, 3.3V/1.8V reserved Copyright © Fibocom Wireless Inc.
Page 18 3V/1.8V Ultra high speed USB data USB_SS_RX_ receiving negative SIM card 1 power supply, CMOS UIM1_PWR 3V/1.8V 3V/1.8V Ultra high speed USB data USB_SS_RX_P AI receiving positive Peripheral wake-up module CMOS WAKEUP_IN control signal 1.8V Copyright © Fibocom Wireless Inc.
Page 19 PCIe data receiving negative CMOS UIM2_PWR SIM card 2 power supply 3V/1.8V PERp0 PCIe data receiving positive Module PCIe interface reset. CMOS Active low, and an external pull- PERST# 3.3V/1.8V up resistor is required Power Ground supply Copyright © Fibocom Wireless Inc.
Page 20 1.8V power exceeds 10dBm Output a high level to the module to turn off the n79 LNAs COEX3/GPIO CMOS when the external 5 GHz WLAN 1.8V transmitting power exceeds a certain threshold Copyright © Fibocom Wireless Inc.
Page 21 A card is available at 1.8V high level by default CMOS RESET_N Module reset. Active low 1.8V I2S_MCLK I2S MCLK clock output GND, WWAN–PCIe is configured for the FM101-NA-20 module, CONFIG_1 USB_SS interface type M.2 module Power Power input supply Power Ground supply...
Page 22 Pins marked with * are reserved functions or under development.  Unused pins remain floating. Table 7. I/O parameter description Type Description Power input Power output Digital input Digital output Digital input/output Analog input Analog output Analog input/output Open drain Copyright © Fibocom Wireless Inc.
Page 23: Electrical Characteristics
The operating limit voltage is the normal operating voltage range of the module, beyond which the module will have an abnormal performance. 4.1.1. Absolute Limit Voltage The following table describes the absolute limit voltage ranges of FM101-NA-20 module. Table 8. Absolute limit voltage range Minimum...
Page 24: Power Consumption
1.8/2.85 1.85/2.928 4.2. Power Consumption The power consumption of FM101-NA-20 module measured under 3.8 V power supply is described in the following table. For AT commands used for USB sleep and wakeup, see Fibocom_FM101_AT Commands User Manual. Table 11. Power consumption...
Page 25 Paging Cycle #32 (USB wakeup) Paging Cycle #64 (USB wakeup) TDD-LTE Paging Cycle #128 (USB wakeup) Paging Cycle #256 (USB wakeup) Band 2 @+23.5 dBm Band 4 @+23.5 dBm WCDMA WCDMA-RMS Band 5 @+23.5 dBm Copyright © Fibocom Wireless Inc.
Page 26 Band66 @+23dBm Band71 @+23dBm Band41 @+23dBm TDD-LTE Band48 @+23dBm Table 12. 2CA power consumption Transmitting Band@FRB@Data 2CA Typical Combination Typical Current (mA) Transmission Status 2A-5A B2+B5 @+21dBm 7A-7A B7+B7 @+21dBm 7A-12A B7+B12 @+21dBm 46A-66A B46+B66 @+21dBm Copyright © Fibocom Wireless Inc.
Page 27: Functional Interface
GND, all GND pins must be grounded 45, 51, 57, 71, 73 Power Input The FM101-NA-20 module is powered on through the VBAT pin. The following figure shows the recommended power supply design. Figure 3. Recommended power supply design The filter capacitor design of power supply is shown in the following table.
Page 28 2500/2600 MHz band interference. Stable power supply ensures proper operating of the FM101-NA-20 module. During design, ensure that the power supply ripple is less than 300 mV (circuit ESR < 100 mΩ). When the module is working in maximum load, ensure that the power supply voltage is not lower than 3.135V.
Page 29: Control Interface
3.3 V or 1.8 V, the module is powered on. When the AP (Application Processor) controls the power-on of the module, it is recommended to use GPIO with the reset status of low or internal pull-down. Copyright © Fibocom Wireless Inc.
Page 30: Power-On Sequence
40ms. The power-on control is automatically pulled up inside the module. 5.2.1.3. Power Off When the module is powered on, pull down FCPO#, and the module is powered off. The Copyright © Fibocom Wireless Inc.
Page 31: Reset
5. Functional Interface recommended power-off sequence is shown in the following figure. Figure 7. Recommended power-off sequence 5.2.2. Reset FM101-NA-20 module can be reset by hardware and software. Table 16. Reset methods Reset Method Action Hardware reset Pull down the RESET_N pin for 0.5s or...
Page 32: Led1
The RESET pin can be internally pulled up, without external pull-up. Keep the pin floating when it is not used. 5.3. LED1# The LED1# signal is used to indicate the operating status of the module, as described in the table below. Copyright © Fibocom Wireless Inc.
Page 33: U)Sim Card Interface
The LED driver circuit is shown in the following figure. Figure 11. Reference circuit of network status indicators 5.4. (U)SIM Card Interface FM101-NA-20 module has built-in (U)SIM card interface, and supports 1.8 V and 3.0 V (U)SIM cards. 5.4.1. (U)SIM Pin Definition (U)SIM pin definition is described in the following table.
Page 34: U)Sim Interface Circuit
The following figure shows the reference design circuit. When (U)SIM card is inserted, USIM_DET pin is at high level, when (U)SIM card is removed, USIM_DET pin is at low level. Copyright © Fibocom Wireless Inc.
Page 35: U)Sim Card Hot Plug
The hot plug detection can be enabled/disabled by the AT command as follows. Table 19. (U)SIM card hot plug function configuration AT Command Function Remark (U)SIM card hot plug detection is AT+MSMPD=1 Default setting enabled Copyright © Fibocom Wireless Inc.
Page 36: U)Sim Design Requirements
Refer to the specification of (U)SIM card slot for PCB packaging design. The PCB • surface layer under the 6 contactors should be keepout to avoid short circuit caused by the contactor pricked to the copper plane. Copyright © Fibocom Wireless Inc.
Page 37: Usb Interface
5. Functional Interface 5.5. USB Interface FM101-NA-20 module supports USB 3.0 (5 Gb/s) ultra-high-speed data transmission, and is also compatible with USB high-speed (480 Mb/s) for download, debugging, data transmission and other functions. USB pin definition is shown in the following table.
Page 38: Usb Routing Rules
USB_D– and USB_D+ signal line difference must be less than 2mm in length and • parallel, avoiding the right-angle routing. USB_D– and USB_D+ signal lines should be routed on the layer that is closest to the • ground layer, and protected with GND all around. Copyright © Fibocom Wireless Inc.
Page 39: Usb 3.0 Routing Rules
GND all around. 5.6. PCM and I S Digital Audio Interface The FM101-NA-20 module provides a digital audio interface (PCM/I S) for communication with external codec and other digital audio devices. 5.6.1. PCM Interface Definition PCM interface signals include transmission clock PCM_CLK, frame synchronization signal PCM_SYNC, and input and output PCM_IN/PCM_OUT.
Page 40: Pcm Application Circuit
TBD bit. The PCM channel can also be configured as I S interface. Please contact Fibocom technical support for adjustment. 5.6.2. PCM Application Circuit The application reference circuit of the external Codec chip of the PCM interface is shown in the following figure.
Page 41: Pcie Interface
5. Functional Interface Figure 14. Reference circuit of the PCM interface external Codec chip 5.7. PCIe Interface FM101-NA-20 module supports a group of PCIE GEN 2.0 x 1 lanes. Table 22. PCIe pin definition Pin Name Description Number PCIE_data transmitting signal...
Page 42: Pcie Routing Rules
PCIE reference clock signal positive 5.7.1. PCIe Routing Rules FM101-NA-20 module supports PCIe 2.0 x1, including three differential pairs: transmitting pair TXP/N, receiving pair RXP/N and clock pair CLKP/N. PCIe can achieve the maximum transmission rate of 5GT/s. The following rules must be...
Page 43: Pcie Application Circuit
Figure 16. Length match design of PCIe difference pair 5.7.2. PCIe Application Circuit Please refer to the following figure for PCIe application circuit, and Fibocom_FM101- NA_Reference Design for details. Copyright © Fibocom Wireless Inc.
Page 44: Flight Mode Control Interface
Module flight mode control (internal W_DISABLE_N pulled up by default) FM101-NA-20 module supports two ways as described in the following table to enter flight mode: Table 24. Ways for module to enter flight mode Send AT+GTFMODE=1 to turn on the hardware control flight mode function;...
Page 45: Sleep/Wakeup Interface
I/O Pin Number Description WAKEUP_IN DI External device wake-up module, active low by default The module supports setting wake-up mode and waking up active level through AT commands. For details of configuration method, see Fibocom_FM101-NA_AT Commands User Manual. Copyright © Fibocom Wireless Inc.
Page 46: Radio Frequency
6.1. RF Interface 6.1.1. RF Interface Function The FM101-NA-20 module supports three RF connectors used for external antenna connection. As shown in the following figure, "M" refers to the RF main antenna for receiving and transmitting RF signals; "D" refers to the diversity antenna for receiving diversity RF signals;...
Page 47: Rf Connector Dimensions
6. Radio Frequency 6.1.3. RF Connector Dimensions FM101-NA-20 module adopts standard M.2 module RF connectors, the model name is 818004607 from ECT company, and the connector dimensions are 2 mm × 2 mm × 0.6 mm, as shown in the following figure.
Page 48: Operating Bands
Band 41 LTE TDD 2496–2690 2496–2690 Band 42 LTE TDD 3400~3600 3400~3600 Band 43 LTE TDD 3600~3800 3600~3800 Band 48 LTE TDD 3550–3700 3550–3700 Band 66 LTE FDD 1710–1780 2110–2200 Band 71 LTE FDD 663–698 617–652 Copyright © Fibocom Wireless Inc.
Page 49: Transmitting Power
6. Radio Frequency 6.3. Transmitting Power The following table describes the RF output power of FM101-NA-20 module. Table 27. Output power Band Minimum Value Maximum Value WCDMA < –50 dBm 23.5 dBm ± 2 dB LTE FDD < –40 dBm 23 dBm ±...
Page 50: Gnss Receiving Performance
Band 30 Band 66 Band 71 Band 41 LTE TDD Band 48 6.5. GNSS Receiving Performance The GNSS of FM101-NA-20 module supports GPS/GLONASS/BDS/GALILEO, and the performance parameters of GNSS are shown in the following table. Copyright © Fibocom Wireless Inc.
Page 51: Antenna Design
The above data is an average value obtained by testing some samples at  25°C. 6.6. Antenna Design Antenna indicators The antenna requirements for FM101-NA-20 module are described in the following table. Table 30. Module Antenna Requirements FM101-NA-20 module main antenna requirements VSWR: ≤ 2 Input power: > 28dBm Input impedance: 50Ω...
Page 52: Pcb Routing Design
6. Radio Frequency FM101-NA-20 module main antenna requirements Frequency range: 1559 MHz–1609 MHz Polarization direction: right-circular or linear polarization GNSS VSWR: < 2:1 Passive antenna gain: > 0dBi 6.7. PCB Routing Design 6.7.1. Routing Rules For modules that don’t have a RF connector, customers need to route a RF trace to connect to the antenna feeding point or connector.
Page 53: Principle
The thickness of four-layer board is 1.0 mm. RF line is routed on Lay 1, and reference layer is on Lay 2 (GND layer). The stacking varies with PCB vendor, the following figure is taken as an example. Figure 22. Four layers (1+2+1) thickness Copyright © Fibocom Wireless Inc.
Page 54 The thickness from Lay 1 to Lay 2 is 65 um, RF trace is 4 mil, and the distance from RF to GND is greater than 3 times of RF line width. The blue area is Lay 1 and the red area is Lay 2, the highlighted part is RF line. Figure 23. RF traces Copyright © Fibocom Wireless Inc.
Page 55: Main Antenna Design
The compatibility is good. Most of the interfaces of such antennas are SMA interfaces. Figure 25. External antenna Copyright © Fibocom Wireless Inc.
Page 56: Internal Antenna
6.8.2.2. Internal Antenna Classification There are three kinds of internal antennas: PIFA, IFA and monopole. Internal antennas may form interference and other potential problems in the product, so there are more requirements in the design. Copyright © Fibocom Wireless Inc.
Page 57 There is complete paving in the antenna projection area. Do not place any component in the antenna area. The recommended length of PCB board should be 90 mm to 110 mm. The antenna performance is better if the board length is 105 Copyright © Fibocom Wireless Inc.
Page 58 PCB board, and adopt round shape. Square with rounded corners is also preferred. The distance between feeding point pad and ground should be equal to or greater than 1mm. Figure 27. Pad design requirement Requirements on height and area • Copyright © Fibocom Wireless Inc.
Page 59 There should be no paving or PCB in the antenna projection area. Do not place any component in the antenna area. The recommended length of PCB board should be 80 mm to 100 mm. The antenna performance is improved if the board length is 95mm. Copyright © Fibocom Wireless Inc.
Page 60 IFA antenna shares similarity with Monopole antenna and PIFA antenna. IFA antenna has two feeding branches, and allows ground under the antenna. The antenna has better stability than Monopole antenna, and the antenna space requirement is between Monopole antenna and PIFA antenna. Copyright © Fibocom Wireless Inc.
Page 61: Surrounding Environment Design Of Internal Antenna
6.8.3.2. Handling of Metal Structural Parts All the metal structural parts must be grounded correctly and reliably, and the circuit part must be shielded. 6.8.3.3. Handling of Battery The battery should be far away from antenna. • Copyright © Fibocom Wireless Inc.
Page 62: Location Of Large Components In Antenna Area
Do not place large metal components such as oscillator, speaker, and receiver around the antenna; they may greatly affect the electrical performance of antenna. Do not spray the cover of the antenna with conductive paint; be cautious when you use plating. Copyright © Fibocom Wireless Inc.
Page 63: Common Problems Of Internal Antenna Overall Design
Poor coupling sensitivity is caused by SIM card clock. • Poor FPC layout affects the receiving performance of the device. • Factors that would affect electromagnetic compatibility (EMC) Poor FPC layout affects EMC performance of the device. • Copyright © Fibocom Wireless Inc.
Page 64: Diversity And Mimo Antenna Design
0.5. High isolation does not mean good correlation coefficient. Customers need to evaluate two indexes separately. The isolation and correlation coefficient of antenna generally depend on: Antenna isolation ◦ Antenna type ◦ Antenna directivity ◦ Copyright © Fibocom Wireless Inc.
Page 65: Other Interfaces
6. Radio Frequency 6.10. Other Interfaces For the application of other interfaces, please refer to the recommended design. If the application scenario and the recommended design are not consistent, please contact FIBOCOM technicians for confirmation. Copyright © Fibocom Wireless Inc.
Page 66: Thermal Design
7. Thermal Design 7. Thermal Design FM101-NA-20 module is designed to be workable on an extended temperature range, to make sure the module can work properly for a long time and achieve a better performance under extreme temperatures or extreme working conditions, such as high...
Page 67: Electrostatic Protection
8. Electrostatic Protection Although the ESD problem has been considered and ESD protection has been completed in the FM101-NA-20 module design, the ESD problem may also occur in transportation and secondary development. Developers should consider ESD protection in the final product.
Page 68: Structural Specifications
The appearance of the FM101-NA-20 module is shown in the following figure. Figure 32. Product appearance 9.2. Structural Dimensions The structural dimensions of the FM101-NA-20 module is shown in the following figure. The unit is mm. Copyright © Fibocom Wireless Inc.
Page 69: Package
Tray Package The FM101-NA-20 module uses tray package. 20 pcs are packed in one tray. 5 trays covering an empty tray on top are packed in one box. 5 boxes are packed in one case.
Page 70: Storage
9. Structural Specifications Figure 34. Tray package Tray Size The tray size of FM101-NA-20 module is 330 mm × 175 mm × 6.5 mm, as shown in the following figure. Figure 35. Tray size (unit: mm) 9.4. Storage Storage conditions (recommended): The temperature is 23℃ ± 5℃, and the relative humidity is less than RH 60%.
Page 71 9. Structural Specifications Storage period: Under the recommended storage conditions, the storage life is 12 months. Copyright © Fibocom Wireless Inc.
Page 72: Appendix A: Acronyms And Abbreviations
Discontinuous Reception Frequency Division Duplexing HSDPA High Speed Down Link Packet Access Imax Maximum Load Current Light Emitting Diode Long Term Evolution Mobile Equipment Mobile Station Mobile Terminated Printed Circuit Board Protocol Data Unit Radio Frequency Copyright © Fibocom Wireless Inc.
Page 73 Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value Copyright © Fibocom Wireless Inc.
Page 74 Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value VSWR Voltage Standing Wave Ratio WCDMA Wideband Code Division Multiple Access Copyright © Fibocom Wireless Inc.
Page 75 Fibocom that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by...
Page 76 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.
Page 77 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.
Page 78 Industry Canada Statement This device complies with Industry Canada’s licence-exempt RSSs. 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.
Page 79 Cet appareil est conçu uniquement pour les intégrateurs OEM dans les conditions suivantes: (Pour utilisation de dispositif module) 1) L'antenne doit être installée de telle sorte qu'une distance de 20 cm est respectée entre l'antenne et les utilisateurs, et 2) Le module émetteur peut ne pas être coïmplanté avec un autre émetteur ou antenne. Tant que les 2 conditions ci-dessus sont remplies, des essais supplémentaires sur l'émetteur ne seront pas nécessaires.
Page 80 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 user’s 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.

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