Quectel FGM842D-P Series Manual
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Quectel FGM842D-P Series Manual

Quectel FGM842D-P Series Manual

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FGM842D-P Series
Hardware Design
Wi-Fi&Bluetooth Module Series
Version: 1.0.0
Date: 2023-10-17
Status: Preliminary

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Summary of Contents for Quectel FGM842D-P Series

  • Page 1 FGM842D-P Series Hardware Design Wi-Fi&Bluetooth Module Series Version: 1.0.0 Date: 2023-10-17 Status: Preliminary...

  • Page 2: Legal Notices

    Wi-Fi&Bluetooth Module Series At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our headquarters: Quectel Wireless Solutions Co., Ltd. Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District,...

  • Page 3: Third-Party Rights

    Except as otherwise set forth herein, nothing in this document shall be construed as conferring any rights to use any trademark, trade name or name, abbreviation, or counterfeit product thereof owned by Quectel or any third party in advertising, publicity, or other aspects.

  • Page 4: Safety Information

    Manufacturers of the terminal should notify users and operating personnel of the following safety information by incorporating these guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to comply with these precautions.

  • Page 5: About The Document

    Wi-Fi&Bluetooth Module Series About the Document Revision History Version Date Author Description 2023-10-16 Wain ZHAO/Neil CHENG Creation of the document 1.0.0 2023-10-17 Wain ZHAO/Neil CHENG Preliminary FCM242D-P_Hardware_Design 4 / 47...

  • Page 6: Table Of Contents

    Wi-Fi&Bluetooth Module Series Contents Safety Information ............................3 About the Document ..........................4 Contents ..............................5 Table Index ..............................7 Figure Index ..............................8 1 Introduction ............................. 9 1.1. Special Mark ..........................10 2 Product Overview ..........................11 2.1. Key Features ..........................12 3 Application Interfaces ..........................
  • Page 7 Wi-Fi&Bluetooth Module Series 6.5. ESD Protection ..........................32 7 Mechanical Information ........................33 7.1. Mechanical Dimensions ....................... 33 7.2. Recommended Footprint ......................34 7.3. Top and Bottom Views ......................... 35 8 Storage, Manufacturing & Packaging ....................36 8.1. Storage Conditions ........................36 8.2.
  • Page 8 Wi-Fi&Bluetooth Module Series Table Index Table 1 : Special Mark..........................10 Table 2 : Basic Information ........................11 Table 3 : Key Features ..........................12 Table 4 : Parameter Description ........................ 14 Table 5 : Pin Description ..........................14 Table 6 : GPIO Multiplexing ........................16 Table 7 : Pin Definition of UARTs ......................
  • Page 9 Wi-Fi&Bluetooth Module Series Figure Index Figure 3 :FGM842D-P Pin Assignment (Top View) ................... 13 Figure 4 : UART1 Connection ........................18 Figure 5 : UART2 Reference Design ......................18 Figure 6 : SPI Connection (Master Mode) ....................19 Figure 6 : SPI Connection (Slave Mode) ....................19 Figure 7 : Reference Circuit of Power Supply ....................

  • Page 10: Introduction

    20cm. Hereby, Quectel Wireless Solutions Co., Ltd. declares that the radio equipment type FGM842D-P is in compliance with Directive 2014/53/EU.

  • Page 11: Special Mark

    Wi-Fi&Bluetooth Module Series ''the module/modules'' in parts hereof applicable to both models, and individually as ''FGM842D'' and "FGM842D-P" in parts hereof referring to the differences between them. 1.1. Special Mark Table 1: Special Mark Mark Definition Brackets ([…]) used after a pin enclosing a range of numbers indicate all pins of the same […] type.

  • Page 12: Product Overview

    Wi-Fi&Bluetooth Module Series Product Overview FGM842D series is a high performance MCU Wi-Fi 4 and Bluetooth module supporting IEEE 802.11b/g/n and BLE 5.2 standards. It provides multiple interfaces including UART, GPIO, SPI, I2C, PWM and ADC for various applications. FGM242D is an SMD LCC module with compact packaging. It includes: ⚫...

  • Page 13: Key Features

    For more details about the EVB, see document [1]. FGM842D is provided with one of the two antenna interface designs. For more details, please contact Quectel Technical Support. For more details about the interfaces, see Chapter 3.3 and Chapter 3.4.

  • Page 14: Application Interfaces

    Wi-Fi&Bluetooth Module Series Application Interfaces 3.1. Pin Assignment GPIO9 GPIO7 GPIO6 VBAT GPIO8 RESERVED UART1_TXD GPIO20 UART1_RXD GPIO28 RESERVED RESERVED RESERVED CHIP_EN RESERVED RESERVED GPIO23 RESERVED RESERVED GPIO Power UART Control RESERVED Figure 1:FGM842D-P Pin Assignment (Top View) FCM242D-P_Hardware_Design 13 / 47...

  • Page 15: Pin Description

    Wi-Fi&Bluetooth Module Series NOTE Keep all RESERVED and unused pins unconnected. All GND pins should be connected to ground. The module provides 2 UARTs and 15 GPIO interfaces by default. In the case of multiplexing, it can support interfaces including SPI, I2C, PWM, ADC and JTAG. For more details, see Chapter 3.3 and 3.4.
  • Page 16 Wi-Fi&Bluetooth Module Series Pin Name Pin No. Description Comment Characteristics Hardware enable. CHIP_EN Enable the module VBAT Internally pulled up to 3.3 V. Active high. UARTs Pin Name Pin No. Description Comment Characteristics UART1_TXD UART1 transmit UART1_RXD UART1 receive VBAT UART2_TXD UART2 transmit UART2_RXD...

  • Page 17: Gpio Multiplexing

    Wi-Fi&Bluetooth Module Series General-purpose GPIO20 input/output General-purpose GPIO24 input/output General-purpose GPIO26 input/output FGM842D RF Antenna Interface Pin Name Pin No. Description Comment Characteristics 50 Ω characteristic Wi-Fi/Bluetooth ANT_WIFI/BT 47 antenna interface impedance. RESERVED Pins Pin Name Pin No. Comment RESERVED 4, 7, 9, 10, 15, 24, 25, 27–29 Keep them open.

  • Page 18: Application Interfaces

    Wi-Fi&Bluetooth Module Series GPIO6 GPIO6 CLK13M PWM0 JTAG_TCK GPIO7 GPIO7 PWM1 JTAG_TMS GPIO8 GPIO8 PWM2 JTAG_TDI CLK26M GPIO9 GPIO9 PWM3 JTAG_TDO GPIO21 GPIO21 UART1_RXD GPIO10 ADC6 UART1_TXD GPIO11 GPIO22 GPIO22 GPIO28 GPIO28 ADC4 GPIO20 GPIO20 ADC3 GPIO24 GPIO24 LPO_CLK PWM4 I2C2_SCL ADC2 GPIO26...

  • Page 19: Spi

    Wi-Fi&Bluetooth Module Series UART2_TXD UART2 transmit UART2_RXD UART2 receive The UART1 can be used for download and AT command communication and the default baud rate is 115200 bps. The UART1 connection between the module and the MCU is illustrated below. Figure 2: UART1 Connection The UART2 can be used for the output of partial logs with the debugging tools, and the default baud rate is 921600 bps.
  • Page 20 Wi-Fi&Bluetooth Module Series Table 8: Pin Definition of SPI Multiplexing Pin Name Pin No. Description Comment Function In master mode, it is an output signal; GPIO15 SPI_CS SPI chip select In slave mode, it is an input signal. In master mode, it is an output signal;...

  • Page 21: I2C Interfaces

    Wi-Fi&Bluetooth Module Series 3.4.3. I2C Interfaces In the case of multiplexing, the module provides up to 1 I2C interfaces which support the master and slave modes. The interfaces support standard (up to 100 kbps) and fast (up to 400 kbps) modes with 7-bit addressing.

  • Page 22: Adc Interfaces

    Wi-Fi&Bluetooth Module Series 3.4.5. ADC Interfaces In the case of multiplexing, the module supports up to 6 10-bit ADC interfaces, whose voltage range is 0~3.3 V. To improve ADC accuracy, surround ADC traces with ground. Table 11: Pin Definition of ADC Interfaces Pin Name Pin No.

  • Page 23: Operating Characteristics

    Wi-Fi&Bluetooth Module Series Operating Characteristics 4.1. Power Supply Power supply pin and ground pins of the module are defined in the following table. Table 13: Pin Definition of Power Supply and GND Pins Pin Name Pin No. Description Min. Typ. Max.

  • Page 24: Turn On

    Wi-Fi&Bluetooth Module Series Figure 6: Reference Circuit of Power Supply 4.2. Turn On After the module VBAT is powered on, keep the CHIP_EN pin at high level to realize the automatic startup of the module. Table 14: Pin Definition of CHIP_EN Pin Name Pin No.

  • Page 25: Reset

    Wi-Fi&Bluetooth Module Series 4.3. Reset When the voltage of CHIP_EN drops below 0.3 V or pull CHIP_EN down for at least 1 ms, the module can be reset. The reference design for hardware resetting of the module are shown below. An open collector driving circuit can be used to control the CHIP_EN pin.
  • Page 26 Wi-Fi&Bluetooth Module Series Figure 10: Reset Timing FCM242D-P_Hardware_Design 25 / 47...

  • Page 27: Rf Performances

    Wi-Fi&Bluetooth Module Series RF Performances 5.1. Wi-Fi Performances Table 15: Wi-Fi Performances Operating Frequency 2.4 GHz: 2.400–2.4835 GHz Modulation DSSS, CCK, BPSK, QPSK, 16QAM, 64QAM Operating Mode ⚫ ⚫ ⚫ AP + STA Encryption Mode WPA-PSK, WPA2-PSK, WPA3-SAE, AES-128, TRNG Transmission Data Rate ⚫...

  • Page 28: Bluetooth Performances

    Wi-Fi&Bluetooth Module Series ≤ -5 dB 802.11n, HT20 @ MCS 0 ≤ -27 dB 802.11n, HT20 @ MCS 7 5.2. Bluetooth Performances Table 16: Bluetooth Performances Operating Frequency 2.400–2.4835 GHz Modulation GFSK Operating Mode Typ.; Unit: dBm, Tolerance: ± 2 dB Condition (VBAT = 3.3 V;...

  • Page 29: Antenna/Antenna Interfaces

    Wi-Fi&Bluetooth Module Series 5.3. Antenna/Antenna Interfaces FGM842D is provided with one of the two antenna interface designs: pin antenna interface (ANT_WIFI/BT) or RF coaxial connector. The RF coaxial connector is not available when the module is designed with ANT_WIFI/BT antenna interface; FGM842D-P supports PCB antenna. The impedance of antenna port is 50 Ω.
  • Page 30 Wi-Fi&Bluetooth Module Series Figure 11: Prohibited Area for Routing (Bottom Side) FCM242D-P_Hardware_Design 29 / 47...

  • Page 31: Electrical Characteristics & Reliability

    Wi-Fi&Bluetooth Module Series Electrical Characteristics & Reliability 6.1. Absolute Maximum Ratings Table 18: Absolute Maximum Ratings (Unit: V) Parameter Min. Max. VBAT -0.3 Voltage at Digital Pins -0.3 Voltage at ADC[1:6] 6.2. Power Supply Ratings Table 19: Module Power Supply Ratings (Unit: V) Parameter Description Condition...

  • Page 32: Power Consumption

    Wi-Fi&Bluetooth Module Series 6.3. Power Consumption 6.3.1. Wi-Fi Power Consumption Table 20: Power Consumption in Non-signaling Mode (Unit: mA) （Typ.） Condition VBAT Tx 1 Mbps @ 18 dBm 267.11 802.11b Tx 11 Mbps @ 18 dBm 271.50 Tx 6 Mbps @ 16 dBm 246.18 2.4 GHz 802.11g...

  • Page 33: Digital I/O Characteristics

    Wi-Fi&Bluetooth Module Series 6.4. Digital I/O Characteristics Table 22: VBAT I/O Requirements (Unit: V) Parameter Description Min. Max. High-level input voltage 0.7 × VBAT VBAT Low-level input voltage 0.3 × VBAT High-level output voltage 0.9 × VBAT Low-level output voltage 0.1 ×...

  • Page 34: Mechanical Information

    Wi-Fi&Bluetooth Module Series Mechanical Information This chapter describes the mechanical dimensions of the module. All dimensions are measured in millimeters (mm), and the dimensional tolerances are ± 0.2 mm unless otherwise specified. 7.1. Mechanical Dimensions Figure 12:FGM842D-P Top and Side Dimensions FCM242D-P_Hardware_Design 33 / 47...

  • Page 35: Recommended Footprint

    Wi-Fi&Bluetooth Module Series Figure 13:FGM842D-P Bottom Dimensions (Bottom View) NOTE The package warpage level of the module refers to the JEITA ED-7306 standard. 7.2. Recommended Footprint Figure 14:FGM842D Recommended Footprint Figure 15:FGM842D-P Recommended Footprint FCM242D-P_Hardware_Design 34 / 47...

  • Page 36: Top And Bottom Views

    Images above are for illustrative purposes only and may differ from the actual module. For authentic appearance and label, please refer to the module received from Quectel. The RF coaxial connector is not mounted on the FGM842D when using pin antenna interface (ANT_WIFI/BT).

  • Page 37: Storage, Manufacturing & Packaging

    Wi-Fi&Bluetooth Module Series Storage, Manufacturing & Packaging 8.1. Storage Conditions The module is provided with vacuum-sealed packaging. MSL of the module is rated as 3. The storage requirements are shown below. 1. Recommended Storage Condition: the temperature should be 23 ± 5 ° C and the relative humidity should be 35–60 %.

  • Page 38: Manufacturing And Soldering

    Wi-Fi&Bluetooth Module Series NOTE 1. To avoid blistering, layer separation and other soldering issues, extended exposure of the module to the air is forbidden. 2. Take out the module from the package and put it on high-temperature-resistant fixtures before baking. If shorter baking time is desired, see IPC/JEDEC J-STD-033 for the baking procedure. Pay attention to ESD protection, such as wearing anti-static gloves, when touching the modules.
  • Page 39 Avoid using ultrasonic technology for module cleaning since it can damage crystals inside the module. Due to the complexity of the SMT process, please contact Quectel Technical Support in advance for any situation that you are not sure about, or any process (e.g. selective soldering, ultrasonic soldering) that is not mentioned in document [3].

  • Page 40: Packaging Specification

    Wi-Fi&Bluetooth Module Series 8.3. Packaging Specification This chapter outlines the key packaging parameters and processes. All figures below are for reference purposes only, as the actual appearance and structure of packaging materials may vary in delivery. The modules are packed in a tape and reel packaging as specified in the sub-chapters below. 8.3.1.

  • Page 41: Plastic Reel

    Wi-Fi&Bluetooth Module Series 8.3.2. Plastic Reel Plastic reel dimensions are illustrated in the following figure and table: Figure 19: Plastic Reel Dimension Drawing Table 27: Plastic Reel Dimension Table (Unit: mm) øD1 øD2 32.5 8.3.3. Mounting Direction Figure 20: Mounting Direction FCM242D-P_Hardware_Design 40 / 47...

  • Page 42: Packaging Process

    Wi-Fi&Bluetooth Module Series 8.3.4. Packaging Process Place the modules onto the carrier tape cavity and cover them securely with cover tape. Wind the heat-sealed carrier tape onto a plastic reel and apply a protective tape for additional protection. 1 plastic reel can pack 1000 modules.

  • Page 43: Appendix References

    Wi-Fi&Bluetooth Module Series Appendix References Table 28: Reference Documents Document Name [1] Quectel_FGM842D_TE-B_User_Guide [2] Quectel_RF_Layout_Application_Note [3] Quectel_Module_SMT_Application_Note Table 29: Terms and Abbreviations Abbreviation Description Analog-to-Digital Converter Advanced Encryption Standard Access Point Bluetooth Low Energy BPSK Binary Phase Shift Keying Complementary Code Keying Charged Device Model DSSS Direct Sequence Spread Spectrum...
  • Page 44 Wi-Fi&Bluetooth Module Series High Throughput Input/Output Inter-Integrated Circuit IEEE Institute of Electrical and Electronics Engineers JTAG Joint Test Action Group Leadless Chip Carrier (package) Mbps Million Bits Per Second Microcontroller Unit MISO Master In Slave Out MOSI Master Out Slave In Over-the-Air Printed Circuit Board Pre-Shared Key...
  • Page 45 Wi-Fi&Bluetooth Module Series UART Universal Asynchronous Receiver/Transmitter (U)SIM (Universal) Subscriber Identity Module High-level Input Voltage Low-level Input Voltage Vmax Maximum Voltage Vmin Minimum Voltage Vnom Nominal Voltage Value High-level Output Voltage Low-level Output Voltage VSWR Voltage Standing Wave Ratio Wi-Fi Protected Access FCM242D-P_Hardware_Design 44 / 47...
  • Page 46 Wi-Fi&Bluetooth Module Series FCC Certification Requirements. Note: The corresponding FCC ID/IC number is FGM842D-P. According to the definition of mobile and fixed device is described in Part 2.1091(b), this device is a mobile device. And the following conditions must be met: 1.
  • Page 47 Wi-Fi&Bluetooth Module Series than paper, such as on a computer disk or over the Internet, the information required by this section may be included in the manual in that alternative form, provided the user can reasonably be expected to have the capability to access information in that form.
  • Page 48 Wi-Fi&Bluetooth Module Series “ Contains IC: 10224A-024FGM842DP ” or “ where: 10224A-024FGM842DP is the module ’ s certification number”. FCM242D-P_Hardware_Design 47 / 47...

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