FM350-GL Hardware Guide _General Version: V1.0.
Applicability Table No. 1 Product model Description FM350-GL-00 NA Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Copyright Copyright © 2020 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 distribute the document in any form. Notice The document is subject to update from time to time owing to the product version upgrade or other reasons. Unless otherwise specified, the document only serves as the user guide.
Contents 1 2 3 Foreword ....................................................................................................................... 7 1.1 Introduction................................................................................................................... 7 1.2 Reference Standard ..................................................................................................... 7 1.3 Related Documents ...........................................................................
3.5.2.1 N.C. SIM Card Slot .................................................................................................................... 30 3.5.2.2 N.O. SIM Card Slot .................................................................................................................... 30 USIM Hot-Plug .............................................................................................................. 31 USIM Design ..........................................................................
9 ISED Conformance information .................................................................................56 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
1 Foreword 1.1 Introduction The document describes the electrical characteristics, RF performance, dimensions and application environment, etc. of FM350-GL (hereinafter referred to as FM350). With the assistance of the document and other instructions, the developers can quickly understand the hardware functions of FM350 modules and develop products. 1.2 Reference Standard The design of the product complies with the following standards: ⚫ 3GPP TS 38.300 V15.5.
1.3 Related Documents ⚫ FIBOCOM Design Guide_RF Antenna 2 Overview 2.1 Introduction FM350 is a highly integrated 5G Sub-6 WWAN module which uses M.2 form factor interface. It supports NR/LTE /WCDMA systems and can be applied to most cellular networks of mobile carrier in the world. 2.
Specification SA 5G/NR Sub-6 Peak DL 4.67Gbps/ UL 1.25Gbps3) NSA Peak Data Transmission LTE DL 3.74Gbps/ UL 835Mbps4) DL 1.6Gbps (CAT19)/ UL 211Mbps(CAT18) 5) DL UMTS:384 kbps/ UL 384 kbps UMTS/HSPA+ DL DC-HSPA+:42 Mbps (CAT24)/ UL 11.5 Mbps (CAT7) LTE DL 5CA, UL 2CA Carrier Aggregation NR DL 2CA, UL 2CA ENDC DL LTE 5CA+ NR 1CA, LTE 3CA+ NR 2CA , UL LTE 2CA+ NR 1CA Power Supply DC 3.135V～4.4V, Typical 3.
Specification Multiple carrier Other Feature Windows update 1) Disabled for FCC cannot certify currently, will enable in future after FCC can certify 2) n77 support HPUE, target power is 25+1/-1dBm 3) NR UL 2.5Gbps is under investigating for future 4) NSA DL 4.45Gbps is under investigating for future 5) LTE UL 225Mbps(CAT20) is under investigating for future Note: When temperature goes beyond normal operating temperature range of -10°C~+55°C, RF performance of module may be slightly off 3GPP specifications.
2.4 Hardware Block Diagram The hardware block diagram in Figure 2-2 shows the main hardware functions of FM350 module, including base band and RF functions. Baseband contains the followings: RF contains the followings: ● 5G NR/LTE/UMTS controller ● RF Transceiver ● PMU ● RF ET Power/PA ● MCP (NAND+LPDDR4 RAM) ● RF PAMid/Front end ● Application interface ● RF SW ● RF Multi-plexer/Filter +3.3V FUL_CARD_POWER_OFF# RF Part PMU Multiplexer MB/HB PAMiD RESET# PCIe USB2.0 USB 3.
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
3 Application Interface 3.1 M.2 Interface The FM350 module applies standard M.2 Key-B interface, with a total of 75 pins. Pin Map Figure 3-1 Pin Map Note: Pin “Notch” represents the gap of the gold fingers. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Pin Definition The pin definition is as below table: Pin Pin Name I/O Reset Value Pin Description Level 1 CONFIG_3 O NC NC, FM350 M.2 module is configured as the WWAN – PCIe Gen3, USB3.1 Gen1 interface type 2 +3.3V PI - Power input Power Supply 3 GND - - GND Power Supply 4 +3.3V PI - Power input Power Supply 5 GND - - GND Power Supply 6 FULL_CARD_ POWER_OFF# I PU Power enable, module power on input, internal pull up(350KΩ) 3.3/1.8V 7 USB D+ I/O - USB data plus 0.
Pin Pin Name I/O Reset Value Pin Description Level Reserved 25 DPR I Dynamic power reduction - Body SAR control signal (SAR_BACK_OFF) 3.3/1.8V 26 W_DISABLE2# I GNSS disable, active low, Reserved 3.3/1.8V 27 GND - GND Power Supply 28 UART_RX I UART RXD input, can mux as DPR2 or GPIO. Reserved 1.8V 29 USB3.0_TX- O USB3.0 transmit data minus, reserved - 30 UIM_RESET O SIM reset signal 1.8V/3V 31 USB3.0_TX+ O USB3.
Pin Pin Name I/O Reset Value Pin Description Level interface. Active low, internal pull up(10KΩ) 51 GND - - GND Power Supply 52 CLKREQ# I/O - Asserted by device to request a PCIe reference clock be available (active clock state) in order to transmit data. It also used by L1 PM Sub states mechanism, 3.3/1.8V asserted by either host or device to initiate an L1 exit.
Pin Pin Name I/O Reset Value Pin Description Level 66 SIM1_DETECT I - SIM1 detect, internal pull up(390KΩ), active high 1.8V 67 RESET# I PU WWAN reset input, active low, internal pull up(350KΩ) 1.8V 68 NC - - NC - 69 CONFIG_1 O GND GND, FM350 M.2 module is configured as the WWAN – PCIe Gen3, USB3.1 Gen1 interface type 70 +3.3V PI - Power input Power Supply 71 GND - - GND Power Supply 72 +3.
3.2 Power Supply The power interface of FM350 module as shown in the following table: DC Parameter (V) Pin Pin Name I/O Pin Description Minimum Value Typical Value Maximum Value 2, 4, 70, 72, 74 +3.3V PI Power supply input 3.135 3.3 4.4 36 PO USIM power supply - 1.8V/3V - UIM_PWR The Power rating table is as below table: I/O Pin Description Current Consumption Limit Max Avg(mA) 2, 4, 70, 72, 74 +3.
Recommended capacitance Application Description 220uF x 2 Voltage-stabilizing capacitors 1uF, 100nF Digital signal noise 39pF, 33pF 18pF, 10pF, 8.2pF, 6.8pF, 3.9pF Reduce power fluctuations of the module in operation, requiring capacitors with low ESR.
Parameters Minimum Typical Maximum Unit 3.3V logic level 3.135 3.3 3.465 V VIH 2.3 3.3 3.465 V VIL -0.3 0 0.3 V 3.3 Control Signal The FM350 module provides two control signals for power on/off and reset operations, the pin defined as shown in the following table: Pin Pin Name I/O Reset Value Functions Level 3.3/1.8V 1.
Figure 3-4 Circuit for module start-up controlled by AP 3.3.1.2 Start-up Timing Sequence When power supply is ready, the PMU of module will power on and start initialization process by pulling high FCPO# signal. After about 20s, module will complete initialization process. The start-up timing is shown in Figure 3-5: tpr +3.3V FCPO# ton1 RESET# ton2 PERST# typical 20s Module State OFF Initialization Activation(AT Command Ready) Figure 3-5 Timing control for start-up Index Min. Recommended Max.
Module Shutdown Module can be shut down by following control: Shutdown Control Action Condition Software Sending AT+CFUN=0 command Normal shutdown(recommend) Pull down FCPO# pin Only used when a hardware exception occurs and the software control cannot be used. Hardware Module can be shut down by sending AT+CFUN=0 command.
Figure 3-7 Recommended design for reset circuit There are two reset control timings as below: Reset timing 1st in Figure 3-8, PMU of module internal always on in reset sequence, recommend using in FW upgrade and module recovery; Reset timing 2nd in Figure 3-9, PMU of module internal will be off in reset sequence (including whole power off and power on sequence, tsd can refer section 3.3.2), recommend using in system warm boot. +3.
Index Min. Recommended Max. Comments toff1 16ms 20ms - RESET# should be asserted after PERST#, refer section 3.3.2 toff2 2ms 10ms - FCPO# should be asserted after RESET#, refer section 3.3.2 toff 500ms 500ms - Time to allow the WWAN module to fully discharge any residual voltages before the pin could be de-asserted again. This is required for both Pre-OS as well as Runtime flow ton1 20ms 20ms - RESET# should be de-asserted after FCPO#, refer section 3.3.1.
+3.3V FCPO# RESET# PERST# CLKREQ# Module State D0 L0@S0/S0ix D0 L1.2@S0/S0ix D0 L0@S0/S0ix Figure 3-10 D0 L1.2 timing 3.3.4.2 D3cold L2 Module supports PCIe goes into D3cold L2 state in Win10 system. In D3cold L2 state, PCIe link can be wakeup by both modem and host. The D0 L0@S0/S0ix→D3cold L2@S0/S0ix→D0 L0@S0/S0ix timing is shown in Figure 3-11 and Figure 3-12: +3.
+3.3V FCPO# RESET# PERST# Host assert Host de-assert CLKREQ# PEWAKE# Module State Modem assert D0 L0@S0/S0ix D3cold L2@S0/S0ix Modem de-assert D0 L0@S0/S0ix Figure 3-12 D3cold L2 timing (Modem wakeup) Timing application The recommended timing application in Win10 OS is as below table: System status Timing Application D0 L1.2 S0ix (Modem standby) D3 L2 cold Refer to section 3.3.4.1 Figure 3-10 D0 L1.2 Timing S3, S4, S5 G3 boot Refer to section 3.3.4.
data transmission channel, it is also compatible with PCIe Gen2 and Gen1. BIOS configuration must follow X86 platform BKC (Best Know Configuration) reference design. PCIe interface initialized with host driver, then mapped MBIM & GNSS port in Win10 OS and RMNET & AT port in Chrome/Linux/Android OS. The MBIM and RMNET interfaces are used for data transfer, GNSS port is used for receiving GNSS data, AT port is used for AT command.
AP side Module side AC Caps PERn0 AC Caps PETn0 PETP0 REFCLKN REFCLKP +3.3V/1.8V 100K 10K PERST# M.2 Key-B 75pin Connector PETn0(pin41) PERP0 PETP0(pin43) PERn0(pin47) PERP0(pin49) REFCLKN(pin53) REFCLKP(pin55) PERST#(pin50) CLKREQ# CLKREQ#(pin52) WAKE# PEWAKE#(pin54) Figure 3-13 Reference Circuit for PCIe Interface FM350 module supports PCIe Gen3/one lane, including three difference pairs: transmit pair TXP/N, receiving pair RXP/N and clock pair CLKP/N.
≥1.5W ≥3W W PCIe Difference Pair 1 ≥ 13 5° S1<2S S ≥20mil PCIe Difference Pair 2 Figure 3-14 Requirement of PCIe line The difference in length of two data lines in difference pair should be within 5mil, and the length match is required for all parts. When the length match is conducted for the differential lines, the designed position of correct match should be close to that of incorrect match, as shown in Figure 3-15.
Pin Pin Name I/O Reset Value Description Level USIM card detect, internal 390K pullup. 66 SIM_DETECT I PD Active high, and high level indicates 1.8V SIM card is inserted; and low level indicates SIM card is detached. USIM Interface Circuit 3.5.2.1 N.C. SIM Card Slot The reference circuit design for N.C. (Normally Closed) SIM card slot is shown in Figure 3-16: Figure 3-16 Reference circuit for N.C. SIM card slot The principles of the N.C.
Figure 3-17 Reference circuit for N.O. SIM card slot The principles of the N.O.SIM card slot are described as follows: When the SIM card is detached, it connects an open circuit between CD and SW pins, and drives the SIM_DETECT pin low. When the SIM card is inserted, it connects the short circuit between CD and SW pins, and drives the SIM_DETECT pin high.
should be noted in design: The SIM card slot should be placed as close as possible to the module, and away from the RF antenna, DC/DC power supply, clock signal lines, and other strong interference sources. The SIM card slot with a metal shielding housing can improve the anti-interference ability. The trace length between the SIM card slot and the module should not exceed 100mm, or it could reduce the signal quality.
Figure 3-18 LED driving circuit Note: The resistance of LED current-limiting resistor is selected according to the driving voltage and the driving current. WOWWAN# The WOWWAN# signal is used to wake the Host (AP) when there comes the data request. The definition of WOWWAN# signal is as follows: Operating Mode WOWWAN# Signal SMS or data requests Pull low 1s then pull high (pulse signal).
3.7 Interrupt Control The FM350 module provides four interrupt signals, and the pin definition is as follows: Pin Pin Name I/O 8 W_DISABLE1# 25 26 Reset Value Pin Description Level I Enable/Disable RF network 3.3/1.8V DPR I Dynamic Power Reduction - Body SAR control signal (SAR_BACK_OFF) 3.3/1.8V W_DISABLE2# I GNSS Disable signal Reserved 3.3/1.8V W_DISABLE1# The module provides a hardware pin to enable/disable WWAN RF function, and the function can also be controlled by the AT command.
configure the bands of LTE antenna to improve the antenna’s working efficiency and save space for the antenna. Module also support 1.8V output for antenna tuner. The pin definition is as below table: Pin 24 Pin Name ANT_TUNER_1V8 I/O Pin Description Level O 1.8V power output for antenna tuner, can mux as GPIO. 1.8V Reserved 56 RFFE_SCLK O Tunable ANT control, MIPI Interface, RFFE clock 1.8V 58 RFFE_SDATA I/O Tunable ANT control, MIPI Interface, RFFE data 1.
4 Radio Frequency 4.1 RF Interface RF Interface Functionality The FM350 module supports four RF connectors used for external antenna connection. As the Figure 41 shows, “M” is for Main antenna, used to receive and transmit RF signals, “D/G” is for Diversity antenna, used to receive the diversity RF signals. “M1” and “M2” are used for supporting 4x4 MIMO data transfer.
RF Connector Dimension FM350 module uses standard M.2 RF connectors. The RF connector part number is 818004607 manufactured by ECT Corporation, and the connector size is 2x2x0.6m. The connector dimension is shown as following picture: Figure 4-2 RF connector dimensions Figure 4-3 0.81mm coaxial antenna dimensions Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Figure 4-4 Schematic diagram of 0.81mm coaxial antenna connected to the RF connector RF Connector Assembly Mate RF connector parallel refer Figure 4-5, do not slant mate with strong force. Figure 4-5 Mate RF connector To avoid damage in RF connector unmating, it is recommended using pulling JIG as Figure 4-6, and the pulling JIG must be lifted up vertically to PCB surface (see Figure 4-7 and 4-8). Figure 4-6 Pulling JIG Reproduction forbidden without Fibocom Wireless Inc.
Figure 4-7 Lift up pulling JIG Figure 4-8 Pulling direction 4.
Operating Band Description RAT TX (MHz) RX (MHz) Band 7 2600Mhz LTE FDD 2500 - 2570 2620 - 2690 Band 8 900MHz LTE FDD/WCDMA 880 - 915 925 - 960 Band 12 700MHz LTE FDD 699 - 716 729 - 746 Band 13 700MHz LTE FDD 777 - 787 746 - 756 Band 14 700MHz LTE FDD 788 - 798 758 - 768 Band 17 700MHz LTE FDD 704 - 716 734 - 746 Band 18 800MHz LTE FDD 815 - 830 860 - 875 Band 19 850MHz LTE FDD 830 - 845 875 - 890 Band 20 800MHz LTE FDD 832 - 862 791 - 821 Band 25 1900MHz
Operating Band Description RAT TX (MHz) RX (MHz) n5 850MHz NR FDD 824 - 849 869 - 894 n7 2600Mhz NR FDD 2500 - 2570 2620 - 2690 n8 900MHz NR FDD 880 - 915 925 - 960 n20 800MHz NR FDD 832 - 862 791 - 821 n25 1900MHz NR FDD 1850 - 1915 1930 - 1995 n28 700MHz NR FDD 703 - 748 758 - 803 n30 2300MHz NR FDD 2305 - 2315 2350 - 2360 n38 2600MHz NR TDD 2570 - 2620 n40 2300MHz NR TDD 2300 - 2400 n41 2500MHz NR TDD 2496 - 2690 n48 3500MHz NR TDD 3550 - 3700 n66 1
RAT Band 3GPP Requirement(dBm) Tx Power(dBm) Note Band 1 23±2.7 23±1 10MHz Bandwidth, 1 RB Band 2 23±2.7 23±1 10MHz Bandwidth, 1 RB Band 3 23±2.7 23±1 10MHz Bandwidth, 1 RB Band 4 23±2.7 23±1 10MHz Bandwidth, 1 RB Band 5 23±2.7 23+2/-1 10MHz Bandwidth, 1 RB Band 7 23±2.7 23±1 10MHz Bandwidth, 1 RB Band 8 23±2.7 23+2/-1 10MHz Bandwidth, 1 RB Band 12 23±2.7 23+2/-1 10MHz Bandwidth, 1 RB Band 13 23±2.7 23+2/-1 10MHz Bandwidth, 1 RB Band 14 23±2.
RAT Band 3GPP Requirement(dBm) Tx Power(dBm) Note n2 23±2.7 23±1 15MHz BW, Inner RB n3 23±2.7 23±1 15MHz BW, Inner RB n5 23±2.7 23+2/-1 15MHz BW, Inner RB n7 23±2.7 23±1 15MHz BW, Inner RB n8 23±2.7 23+2/-1 15MHz BW, Inner RB n20 23±2.7 23+2/-1 15MHz BW, Inner RB n25 23±2.7 23±1 15MHz BW, Inner RB n28 23±2.7 23+2/-1 15MHz BW, Inner RB n30 NA 22±1 NA n38 23±2.7 23±1 15MHz BW, Inner RB n40 23±2.7 23±1 15MHz BW, Inner RB n41 26+2.7/-3.
FM350 module Main antenna requirements LTE band 2(1900): LTE Band 3(1800): LTE band 4(1700): LTE band 5(850): LTE band 7(2600): LTE Band 8(900): LTE band 12(700): LTE band 13(700): LTE band 14(700): LTE band 17(700): LTE band 18(800): LTE band 19(850) : LTE band 20(800): LTE band 25(1900): LTE band 26(850): LTE band 28(700): LTE band 29(700): LTE band 30(2300): LTE band 32(1500): LTE band 34(2000): LTE band 38(2600): LTE band 39(1900): LTE band 40(2300): LTE band 41(2500): LTE band 42(3500): LTE band 43(370
FM350 module Main antenna requirements n78(3500): n79(5500): Bandwidth(GNSS) 500MHz 600MHz GPS: 2MHz GLONASS: 8MHz Galileo: 8MHz BDS: 4MHz Impedance 50Ω Input power > 28dBm average power WCDMA & LTE & NR Recommended standing-wave ratio (SWR) ≤ 2:1 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
5 ESD Characteristics The module is generally not protected against Electrostatic Discharge (ESD). ESD handling precautions that apply to ESD sensitive components should be strictly followed. Proper ESD handling procedures must be applied throughout the processing, handling, assembly and operation of any application with module. The ESD characteristics are shown in the following table (Temperature: 25°C, Relative Humidity: 40%).
6 Structure Specification 6.1 Product Appearance The product appearance for FM350 module is shown in Figure 6-1: Figure 6-1 Module appearance 6.2 Dimension of Structure The structural dimension of the FM350 module is shown in Figure 6-2: Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Figure 6-2 Dimension of structure (unit: mm) 6.3 M.2 Interface Model The FM350 M.2 module adopts 75-pin gold finger as external interface, where 67 pins are signal pins and 8 pins are notch pins as shown in Figure 3-1. For module dimension, please refer to Figure 6-2 Dimension of Structure. Based on the M.2 interface definition, FM350 module adopts Type 3052-S3-B interface (30x52mm, the component maximum height on t top layer is 1.5mm, PCB thickness is 0.8mm, and KEY ID is B).
Figure 6-3 M.2 interface model 6.4 M.2 Connector FM350 module connects with host by M.2 connector which is built in host. The recommended part number is APCI0026-P001A manufactured by LOTES Corporation, and the dimensions is shown in Figure 6-4. The package of connector, please refer to the specification. Figure 6-4 M.2 Dimension of structure Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
6.5 Storage Storage Life Storage Conditions (recommended): Temperature is 23 ± 5 ℃, relative humidity is less than RH 60%. Storage period: Under the recommended storage conditions, the storage life is 12 months. 6.6 Packing The FM350 module uses the tray sealed packing, combined with the outer packing method using the hard cartoon box, so that the storage, transportation and the usage of modules can be protected to the greatest extent.
Figure 6-5 Tray packaging process Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Tray size The pallet size is 330x170x6.5mm, and is shown in Figure 6-6: Figure 6-6 Tray size (Unit: mm) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
7 CE Conformance information The device could be used with a separation distance of 20cm to the human body. Hereby, [Fibocom Wireless Inc.] declares that the radio equipment type [FM350-GL] is in compliance with Directive 2014/53/EU. 8 FCC Conformance information Important Notice to OEM integrators 1. This module is limited to OEM installation ONLY. 2. This module is limited to installation in mobile applications, according to Part 2.1091(b). 3.
second label must be placed on the outside of the final device that contains the following text: “Contains FCC ID:ZMOFM350GL” “Contains IC: 21374-FM350GL “ The FCC ID/IC ID can be used only when all FCC/IC compliance requirements are met. Antenna Installation (1) The antenna must be installed such that 20 cm is maintained between the antenna and users, (2) The transmitter module may not be co-located with any other transmitter or antenna.
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. Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules.
contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. 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.
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 20 cm between the radiator & your body. Déclaration d'exposition aux radiations: Cet équipement est conforme aux limites d'exposition aux rayonnements ISED établies pour un environnement non contrôlé.
NOTE IMPORTANTE: Dans le cas où ces conditions ne peuvent être satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre émetteur), l'autorisation du Canada n'est plus considéré comme valide et l'ID IC ne peut pas être utilisé sur le produit final. Dans ces circonstances, l'intégrateur OEM sera chargé de réévaluer le produit final (y compris l'émetteur) et l'obtention d'une autorisation distincte au Canada.
