Fibocom FG621-LA Series Hardware Manual
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Fibocom FG621-LA Series Hardware Manual

Fibocom FG621-LA Series Hardware Manual

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FIBOCOM FG621-LA Series
Hardware Guide
Version: V0.0.1
Date: 2020-09-29

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Summary of Contents for Fibocom FG621-LA Series

  • Page 1 FIBOCOM FG621-LA Series Hardware Guide Version: V0.0.1 Date: 2020-09-29...
  • Page 2 Applicability Type Product Model Description LPDDR2 1Gb, SPI NAND 1Gb，support MAIN_ANT、 FG621-LA-00 DIV_ANT Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 2 of 57...
  • Page 3 Liu Ke 2020-09-29 Initial version Jin Haibo Tan Lefan V0.0.2 Hu wenkai Liu Ke 2021-01-22 CA Combo Jin Haibo Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 3 of 57...

  • Page 4: Table Of Contents

    5.3.3 (U)SIM Hot Plug........................33 5.3.4 (U)SIM Design Requirements .................... 34 5.4 USB Interface ........................34 5.5 UART Interface ........................35 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 4 of 57...
  • Page 5 9.1 Product Appearance ......................50 9.2 Structural Dimension ......................50 9.3 PCB Soldering Pad and Stencil Design ................51 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 5 of 57...
  • Page 6 12 Appendix ........................55 12.1 Terms and Abbreviations ....................55 12.2 Related Documents ......................56 12.3 Reference Standards......................57 12.4 Contact..........................57 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 6 of 57...

  • Page 7: Foreword

    Product manufacturers need to communicate the following safety instructions to end users. In case of failure to comply with these safety rules, Fibocom will not be responsible for the consequences caused by the user’s misuse.
  • Page 8 There are potential safety hazards when operating electronic equipment in any potentially explosive area. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 8 of 57...

  • Page 9: Product Overview

    2 Product Overview 2.1 Product Introduction Fibocom FG621-LA series module is a CAT6 module designed based on UNISOC SL8563 platform and can support CA network architecture. FG621-LA series module integrates core devices such as Baseband, Memory, PMIC, Transceiver, and PA, and supports multi-format long-distance communication modes including FDD-LTE, TDD-LTE, and WCDMA.
  • Page 10 While the temperature returns to the normal operating range of the module, all the indicators of the module meet the requirements of 3GPP standards. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...

  • Page 11: Functional Diagram

    2.3 Functional Diagram Functional diagram shows the main hardware features of FG621-LA series module, including baseband and RF features. Baseband includes: ...

  • Page 12: Development Board

    Figure 2-1 Functional diagram 2.4 Development Board Fibocom provides EVK-FG150-00, ADP-FG621-LA-00 development board to facilitate module’s debug and use. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 12 of 57...

  • Page 13: Pin Description

    3 Pin Description 3.1 Pin Distribution FG621-LA series module is available with a total of 299 LGA pins. The top view of the pin distribution is shown in the figure below: Figure 3-1 Pin distribution (top view) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved...

  • Page 14: Pin Function

    3.2 Pin Function The pin function description of FG621-LA series module is shown in the following table: Table 3-1 Pin function description Pin# Pin Name Level Description Module reset signal, min=-0.3V max=0.5V RESET_N active low, no need pull max=VBAT_BB up externally Module power-on/off min=-0.3V...
  • Page 15 SD card data signal max=0.35V min=2.15V SD card command min=-0.3V SD_CMD max=0.7V signal min=1.8V SD_CLK max=3.15V SD card clock signal Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 15 of 57...
  • Page 16 RF MIPI clock signal, max=0.45V RFFE_CLK min=1.35V Reserved max=0.45V RF MIPI data signal, min=1.35V RFFE_DATA min=-0.3V Reserved max=0.6V Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 16 of 57...
  • Page 17 OTG_PWR_EN* min=1.35V Reserved max=0.45V SLEEP_IND Sleep status indicator min=1.35V COEX_UART_T LTE/WLAN shared serial max=0.45V min=1.35V port sending signal line, Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 17 of 57...
  • Page 18 GPIO_4 GPIO max=0.6V min=1.2V max=2.0V Vnorm=2.8V VDD_2V8 2.8V voltage output max=200mA max=0.45V BT_TXD* Bluetooth serial port min=1.35V Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 18 of 57...
  • Page 19 Analog to digital ADC1 ranged from 0 to converter input port 1 1.2V 10,13,16,17,24,30,31,35, 39,44,45,54,55,63,64,69, 70,75,76,81~84,89,90,92 Ground ~94,96~100,102~106,10 8~112,114,116~118,120 ~126,128~133,141,142,1 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 19 of 57...
  • Page 20 Description Power input Power output Digital input Digital output Digital input/output Analog input Analog output Analog input/output Open drain Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 20 of 57...

  • Page 21: Electrical Characteristics

    In this document, VBAT includes VBAT_RF and VBAT_BB. The supply voltage of VBAT_RF and VBAT_BB must be consistent. 4.2 Power Supply FG621-LA series module needs to be powered by the VBAT pin. The recommended power design is shown in Figure 4-1: Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved...
  • Page 22 Filter middle/high band RF interference MHz bands The power stability can ensure the normal operation of FG621-LA series module. Special attention requires when designing circuit that the power supply ripple limit for the module is no more than 300mV (the circuit ESR < 100mΩ). When the module is operating in maximum power consumption, the power voltage needs to be at least 3.4V.

  • Page 23: Power Output

    Figure 4-2 Power limit 4.3 Power Output FG621-LA series module outputs a 1.85V voltage through the VDD_EXT for the use of the internal digital circuit of module. The voltage is the logic level of the module and can be used to indicate module power-on/off, or for external low current (<...
  • Page 24 Band4 @+23dBm Band5 @+23dBm FDD-LTE Band7 @+23dBm LTE-RMS (10MHz Band12 @+23dBm 1RB) Band13 @+23dBm Band28 @+23dBm TDD-LTE Band40 @+23dBm Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 24 of 57...
  • Page 25 7A-2A Band 7 @+21dBm 12A-7A Band 12 @+21dBm 13A-7A Band 13 @+21dBm 28A-7A Band 28 @+21dBm Band 40 @+21dBm Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 25 of 57...

  • Page 26: Functional Interface

    5.1.1 Power-on/Off 5.1.1.1 Power-on When FG621-LA series module is in power-off mode, pull down PWRKEY pin for at least 1.6s, the module will power on, it is recommended to use OC/OD drive circuit to control PWRKEY pin. The OC drive...

  • Page 27: Shutdown

    When VBAT voltage is too low or powers normal process, i.e. does not log out from the shutdown down, the module will shut down base station Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 27 of 57...

  • Page 28: Reset

    Send AT command AT+CFUN=15 Clients can control RESET_N pin by OC/OD drive circuits and button switch. The reference circuits are Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 28 of 57...

  • Page 29: Network Status Indication Interface

    At the same time, avoid routing on the edge and surface of PCB (to avoid module reset caused by ESD). 5.2 Network Status Indication Interface FG621-LA series module provides three network status indicate pins. Pin 170 is network status indicator Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...
  • Page 30 Voice call High Sleep FG621-LA series modules’ network status indicator reference circuit is shown in the following figure: Figure 5-8 Network indication light reference circuit Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...

  • Page 31: U)Sim Card Interface

    5.3 (U)SIM Card Interface FG621-LA series module has built-in (U)SIM card interface, and supports 1.8V and 3.0V (U)SIM card. 5.3.1 (U)SIM Pin Definition (U) SIM pin definition is shown in the following table: Table 5-6 (U)SIM pin definition Pin Name...
  • Page 32 USIM_DET pin is in high level, when (U)SIM card is removed, USIM_DET pin is in low level. Figure 5-10 (U)SIM card connector with detection signal reference circuit Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 32 of 57...

  • Page 33: U)Sim Card Connector Without Detection Signal

    Figure 5-11 (U)SIM card connector without detection signal reference circuit 5.3.3 (U)SIM Hot Plug FG621-LA series module supports (U)SIM hot plug function, and it determines the insertion and removal of (U)SIM card by detecting the USIM_DET pin state. The (U)SIM hot plug function can be configured by the “AT+MSMPD” command, and the AT commands...

  • Page 34: U)Sim Design Requirements

    USIM_DATA should be pulled up to USIM_VDD with a 10K resistor. 5.4 USB Interface FG621-LA series modules support USB2.0, and are compatible with USB High-Speed (480Mbits/s) and USB Full-Speed (12Mbits/s). Refer to the “Universal Serial Bus Specification 2.0” for USB Bus timing and electrical characteristics of modules.

  • Page 35: Uart Interface

    5.5 UART Interface FG621-LA series module provides debug serial port, which supports 115200bps baud rate for debugging and problem analysis. The following table is the description of debug serial port pins: Table 5-10 Pin definition of debug serial port...

  • Page 36: Pcm Digital Audio Interface

    I2C_SCL C interface data signal, pulled up inside the module 5.8 PCM Digital Audio Interface FG621-LA series module provides a digital audio interface (PCM) for communication with digital audio devices such as an external Codec. 5.8.1 Support Model Table 5-13 Support model of PCM...

  • Page 37: Pcm Signal Description

    Fibocom technical support. 5.8.4 PCM Signal Description FG621-LA series module provides PCM signal using domestic mainstream European E1 standard. PCM_CLK is encoded by 2.048MHz clock and 16bit linear format. PCM_SYNC is an 8kHz short pulse (488ns). Figure 5-12 PCM_SYNC timing...

  • Page 38: Sd Interface

    For SD application circuit, please refer to the following figure. SD card connector detect pin is floating when no card is inserted, and is short connected to ground when a card is inserted. Detect SD card Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...

  • Page 39: Spi Interface

    Instructions for Use General-Purpose Input pull-down inside the GPIO_1 Port 1 chip by default GPIO_2 General-Purpose I/O Input pull-down inside the Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 39 of 57...
  • Page 40 Input pull-down inside the GPIO_4 Port 4 chip by default General-Purpose Input pull-down inside the GPIO_5 Port 5 chip by default Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 40 of 57...

  • Page 41: Low Power Consumption

    X=0, when WAKEUP_IN pin is low level, module will be waked up) The module will also be waked up by the incoming call or SMS. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...

  • Page 42: Rf Interface

    7 RF Interface FG621-LA series module provides two antenna interfaces, i.e., main antenna interface and diversity antenna interface. The pin definition is shown in the following table: Table 7-1 Antenna interface Pin Name Pin# Description ANT_DIV Diversity antenna ANT_MAIN Main antenna 7.1 Operating Bands...

  • Page 43: Receiving Sensitivity

    UL 10MHz Bandwidth, 25RB,High Band 66 UL 10MHz Bandwidth, 50RB Band 40 7.4 Antenna Design 7.4.1 Antenna Indexes  Antenna Efficiency Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 43 of 57...
  • Page 44 Bandwidth (WCDMA) WCDMA Band 4(2100): 450 MHz WCDMA band 5 (850): 70 MHz Bandwidth (LTE) LTE band 2(1900): 140 MHz Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 44 of 57...

  • Page 45: Antenna Reference Design

    In addition, the RF cable connecting the antenna, and the position of the fixed antenna also may affect antenna performance. The three-way antenna of FG621-LA series module adopts the pad-out way. It is recommended that clients use the U.FL-R-SMT-1 antenna connector and the matching RF adapter cable.
  • Page 46 The equivalent capacitance of the TVS should be less than 0.5pF.  Refer to FIBOCOM Design Guide_RF Antenna for specific design details. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 46 of 57...

  • Page 47: Reliability

    The operating limiting voltage is the normal operating voltage range of the module, beyond which the module will have an abnormal performance. 8.1.1 Absolute Limiting Voltage The absolute limiting voltage range of FG621-LA series module is shown as follow. Table 8-1 Absolute limiting voltage range Parameter...

  • Page 48: Environmental Reliability Requirements

    High temperature and humidity test 8.4 ESD Characteristics Although the design of FG621-LA series module has considered the ESD issues and provided ESD protection, the ESD issue may occur in the transport and secondary development, so developers should consider ESD protection for the final product. In addition to considering anti-static treatment for packaging, please refer to the recommended circuit for interface design in the document for client’s application.
  • Page 49 Table 8-5 ESD allowable discharge range Part Air Discharge Contact Discharge VBAT, GND ±10KV ±5KV Antenna interface ±8KV ±4KV Other interface ±1KV ±0.5KV Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 49 of 57...

  • Page 50: Structure Specification

    9 Structure Specification 9.1 Product Appearance The product appearance of FG621-LA series module is shown in Figure 9-1: Product appearance Figure 9-1 9.2 Structural Dimension The structural dimension of FG621-LA series module is shown in Figure 9-2: Figure 9-2 Structural dimension (in mm) Reproduction forbidden without Fibocom Wireless Inc.

  • Page 51: Pcb Soldering Pad And Stencil Design

    9.3 PCB Soldering Pad and Stencil Design For PCB soldering pad and stencil design, please refer to FIBOCOM FG621 Series SMT Design Guide. 9.4 SMT Patch For SMT production process parameters and related requirements, please refer to FIBOCOM FG621 Series SMT Design Guide.

  • Page 52: Certification

    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 the USI, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application.
  • Page 53 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 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide...
  • Page 54 This equipment complies with FCC 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. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 54 of 57...

  • Page 55: Appendix

    Printed Circuit Board Protocol Data Unit Radio Frequency Root Mean Square Real Time Clock Receive Short Message Service Terminal Equipment Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 55 of 57...

  • Page 56: Related Documents

    12.2 Related Documents  FIBOCOM Design Guide_RF Antenna  FIBOCOM ADP-FG621 User Guide  FIBOCOM FG621 Series AT Commands Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 56 of 57...

  • Page 57: Reference Standards

    HQ Address: 10-14th Floor, Building A, Building 6, Shenzhen International Innovation Valley, Xili Community, Xili Street, Nanshan District, Shenzhen TEL: +86 755-26733555 Fax: +86 755-26520841 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved FIBOCOM FG621-LA Series Hardware Guide Page 57 of 57...

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