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MEIG MA922 Hardware Design Manual

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MA922 Hardware Design Manual
MA922 Hardware
Design Manual
Controlled version: V 1.02
Release date: 2024.6
0 / 123
Meige intelligent product technical data

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  • Page 1 MA922 Hardware Design Manual MA922 Hardware Design Manual Controlled version: V 1.02 Release date: 2024.6 0 / 123 Meige intelligent product technical data...

  • Page 2: Important Notice

    DISCLAIMER MeiG Smart will not take any responsibility for any property and health damage caused by the abnormal operation of customers. Please develop the product according to the technical specification and designing reference guide which defined in the product manual.
  • Page 3 For FCC, this exterior label sho uld follow “Contains FCC ID: 2APJ4-MA922”. In accordance with FCC KDB guidance 78474 8 Labeling Guidelines.
  • Page 4 MA922 Hardware Design Manual Host manufacturer in any case shall ensure host product which is installed and operating with the module is in compliant with Part 15B requirements. Please note that For a Class B or Class A digital device or peripheral, the instructions furni shed the user manual of the end-user product shall include statement set out in §15.105 In...

  • Page 5: Revision History

    MA922 Hardware Design Manual Revision History Serial Number Revision Date Description First edition V1.00 2023-11 1. sheet74， correct SPI I/O type to DIO, 3.14_SPI： Description add SPI Master and Slave mode 2. 3.3 pin Description: correct SPI I/O type to DIO V1.01...

  • Page 6: Table Of Contents

    MA922 Hardware Design Manual Content 1. Introduction ............................7 1.1 Safety Instruction ..........................8 1.2 Document Purpose ......................... 9 1.3 Content ............................9 2. Product Overview ..........................10 2.1 Basic Description .......................... 10 2.2 Main Performance .........................10 2.3 Functional Block Diagram ......................15 2.4 Evaluation Board ...........................16...
  • Page 7 MA922 Hardware Design Manual 6. Mechanical Characteristics ......................115 6.1 Module Mechanical Dimensions ....................115 6.2 Recommended Package ......................116 6.3 Module Top View ........................117 6.4 Module Bottom View ........................117 7. Storage and Production ........................118 7.1 Storage ............................118 7.2 Production Welding ........................

  • Page 8: Introduction

    MA922 wireless module is a broadband wireless terminal product suitable for TDD-LTE/FDD-LTEG/5GNR multiple network standards and multiple frequency bands. Except wireless data access, MA922 can provide functions such as voice and SMS, and can be widely used in M2M fields, such as OTT, CPE, routers, data cards, tablet computers, security and industrial-grade PDAs.

  • Page 9: Safety Instruction

    MA922 Hardware Design Manual 1.1 Safety Instruction You can ensure personal safety and help protect your product and work environment from potential damage by following the following safety principles: Driving safety first! When you are driving, do not use a handheld mobile terminal unless it has a hands-free function.

  • Page 10: Document Purpose

    This article is divided into the following parts: Chapter 1 mainly introduces security instructions, document purpose, revision history, etc.; Chapter 2 describes the basic functions and main features of MA922 wireless module; Chapter 3 describes the functions, characteristics and usage of each hardware interface in detail;...

  • Page 11: Product Overview

    2. Product Overview 2.1 Basic Description The MA922 is a 5GNR, Sub-6 GHz wireless communication module with 5GNR, LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, EDGE and GPRS network functions. It also has single/dual frequency, GNSS and voice capabilities for specific applications.
  • Page 12 MA922 Hardware Design Manual Parameter Description VBAT_BB/VBAT_RF: Supply voltage range: 3.5 V～ 4.2 V Power Typical supply voltage: 3.8V VPH_5V_V2X Supply voltage range: 4.75 ～ 5.25 V Typical supply voltage: 5.0V Class 2 (26 dBm +1/-2 dB) for 5G NR TDD HPUE n41/n77/n78/n79 bands Class 3 (23 dBm ±...
  • Page 13 MA922 Hardware Design Manual Support GPS, GLONASS, BDS, Galileo, QZSS GNSS Features Support dual-frequency GNSS (L1 + L5) Agreement: NMEA 0183 Update rate: 1 Hz by default, max. up to 10 Hz Support C-V2X TDD up to 30 Mbps (Tx)/30 Mbps (Rx) C-V2X Features Support globally unified ITS @ 5.9 GHz...
  • Page 14 8GT /s GSM: HR/FR/EFR/AMR/AMR-WB Audio function WCDMA: AMR/AMR-WB LTE: AMR/AMR-WB Supports echo cancellation and noise suppression Comply with 3GPP TS 27.007, 27.005, and add MeiG AT AT command command Main antenna interface (ANT_MAIN) RX- Hierarchical Antenna Interface (ANT_DIV) Antenna interface...
  • Page 15 MA922 Hardware Design Manual SPI interface RGMII&SGMII&USXGMII interface PCIe interface (can be used for external WLAN&BT modules) ADC interface Hardware boot and reset interface Dormancy indication interface GPIO port USB_BOOT Indicates the interface MeiG Smart Technology Co., Ltd. 14/119...

  • Page 16: Functional Block Diagram

    MA922 Hardware Design Manual 2.3 Functional Block Diagram The following is the block diagram of MA922, explaining its main function part. Power management unit Baseband unit Built-in memory RF part Peripheral interface CV2X0 CV2X1 GNSS Msin DRx MIMO3 MIMO4 APT/ET...

  • Page 17: Evaluation Board

    MA922 Hardware Design Manual 2.4 Evaluation Board For testing and use of MA922, MeiG provides a set of evaluation boards, including USB cables, antennas, and other peripherals. Please refer to the “MA922_USB_EVB User Manual” for the specific usage of the evaluation board.

  • Page 18: Application Interface

    MA922 Hardware Design Manual 3. Application Interface 3.1 Basic Description MA922 adopts 80 pin LCC+64 pin LGA package, providing the following functional interfaces: Power interface USIM/SIM interface (support 3V, 1.8V) *2 I2S port *2 I2C interface *2 PCM interface USB2.0 and USB3.1 interfaces...

  • Page 19: Lga Interface Definition

    MA922 Hardware Design Manual 3.2 LGA Interface Definition VBAT_RF Pins Power Pins GND Pins Figure 2 Module serial number pin diagram Remark: Module serial number pin diagram is the actual wiring name inside the module; MeiG Smart Technology Co., Ltd.

  • Page 20: Pin Description

    MA922 Hardware Design Manual 3.3 Pin Description The following table shows the definition of each pin of MA922 module. Table 2 IO parameter definition Name Electrical Level Description Remark SDC2_DATA_0 SDIO2 data bit 0 SDC2_DATA_1 SDIO2 data bit 1 min = 1.27 V 1.8 V power...
  • Page 21 MA922 Hardware Design Manual Turn on/off the PWR_KEY Valid low level module RESIN_N Reset the module Valid low level RESERVED Close to ETH0_MDIO Ethernet data external PHY min = 1.17 V plus pull-up resistor max = 0.63 V min = 1.35 V max = 0.45 V...
  • Page 22 MA922 Hardware Design Manual RGMII receive RGMII_RXC clock RGMII transmit RGMII_TX_D0 data bit 0 RGMII transmit RGMII_TX_CTL control RGMII transmit RGMII_TX_D1 data bit 1 RGMII transmit RGMII_TX_D2 data bit 2 RGMII transmit RGMII_TXC clock RGMII transmit RGMII_TX_D3 data bit 3 min = 1.26 V...
  • Page 23 MA922 Hardware Design Manual Reset output for ETH0_RST_N Ethernet PHY PCIE0_RX0_M PCIE0_RX0_M PCIE0_RX0_P PCIE0_RX0_P PCIE0_RX1_M PCIE0_RX1_M min = 1.26 V Input in RC PCIe1 clock max = 2.1 V PCIE0_CLKREQ_N mode, output max = 0.54 V request min = 1.35 V in EP mode max = 0.45 V...
  • Page 24 MA922 Hardware Design Manual PCIE0_TX1_P PCIE0_TX1_P PCIE0_TX0_M PCIE0_TX0_M RESERVED Keep pin open PCIE0_TX0_P PCIE0_TX0_P SDC1_CLK SDIO1 clock SDC1_CMD SDIO1 command min = 1.27 V 1.8 V power SDC1_DATA_0 SDIO1 data bit max = 2.0 V SDC1_DATA_1 SDIO1 data bit domain.
  • Page 25 MA922 Hardware Design Manual SDC1_DATA_5 SDIO1 data bit min = 1.27 V 1.8 V power SDC1_DATA_6 SDIO1 data bit max = 2.0 V max = 0.58 V domain. min = 1.4 V SDC1_DS SDIO1 data strobe max = 0.45 V...
  • Page 26 MA922 Hardware Design Manual min = 1.26 V LTE & WLAN & max = 2.1 V COEX_UART_RXD Bluetooth max = 0.54 V coexistence UART min = 1.35 V receive max = 0.45 V Power supply VIHnom=1.8V Provide 1.8 V for...
  • Page 27 MA922 Hardware Design Manual External I2C1_SCL I2C1 serial clock min = 1.26 V pull-up resistors are max = 2.1 V required. max = 0.54 V 1.8V power min = 1.35 V domain, I2C1_SDA I2C1 serial data max = 0.45 V suspended if not used.
  • Page 28 MA922 Hardware Design Manual USB 3.1 USB_SS_TX_M Transmission signal cable TX_M USB 3.1 USB_SS_TX_P Transmission signal cable TX_P SGMII_TX_P SGMII_TX_P min = 1.26 V Dead reckoning max = 2.1 V DR_SYNC max = 0.54 V sync min = 1.35 V max = 0.45 V...
  • Page 29 MA922 Hardware Design Manual min = 1.26 V Supports SPI max = 2.1 V SPI2_CLK_LGA SPI2 clock Master and max = 0.54 V min = 1.35 V Slave mode . max = 0.45 V Support VILnom=0V GPIO4 GPIO wake-up VIHnom=1.8V interrupt.
  • Page 30 MA922 Hardware Design Manual Vmax = 4.3 V Power supply for VBAT_RF Vmin = 3.3 V the module’s RF Vnom = 3.8 V part Support VILnom=0V GPIO5 GPIO wake-up VIHnom=1.8V interrupt. RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd.
  • Page 31 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd. 30/119...
  • Page 32 MA922 Hardware Design Manual RESERVED Keep pin open 140* RESERVED Keep pin open RESERVED Keep pin open 144-151 RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd. 31/119...
  • Page 33 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd. 32/119...
  • Page 34 MA922 Hardware Design Manual min = 1.26 V max = 2.1 V IMU_INT1 IMU interrupt 1 max = 0.54 V min = 1.35 V max = 0.45 V RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open...
  • Page 35 MA922 Hardware Design Manual RESERVED Keep pin open VIHmin = 1.17 V HOST_SW_CTRL Switch control VILmax = 0.63 V VOHmin = 1.44 V VOLmax = 0.36 min = 1.26 V max = 2.1 V IMU_INT2 IMU interrupt 2 max = 0.54 V min = 1.35 V...
  • Page 36 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd. 35/119...
  • Page 37 MA922 Hardware Design Manual RESERVED Keep pin open min = 1.26 V Reset output to max = 2.1 V HSM_RST_N max = 0.54 V external HSM min = 1.35 V max = 0.45 V min = 1.26 V Supports SPI SPI1 master-out max = 2.1 V...
  • Page 38 MA922 Hardware Design Manual min = 1.26 V Supports SPI SPI1 master-in max = 2.1 V SPI1_MISO_LGA Master and max = 0.54 V slave-out Slave mode . min = 1.35 V max = 0.45 V Used for WLAN power VIHmin = 1.17 V...
  • Page 39 MA922 Hardware Design Manual Vmax = 5.25 V Power supply for VPH_5V_CV2X Vmin = 4.75 V the module’s Vnom = 5.0 V C-V2X part WLAN 32 kHz WLAN_SLEEP_CLK sleep clock Vmax = 4.3 V VPH_PWR1_RF Vmin = 3.3 V Power supply for Vnom = 3.8 V...
  • Page 40 MA922 Hardware Design Manual Vmax = 4.3 V VBAT_BB Vmin = 3.3 V Power supply for Vnom = 3.8 V the module’s baseband part Vmax = 4.3 V VBAT_BB Vmin = 3.3 V Vnom = 3.8 V Not support VILnom=0V...
  • Page 41 MA922 Hardware Design Manual VOnom = 2.95 V RESERVED Keep pin open For 1.8 V VIHmin = 1.26 V VILmax = 0.36 V USIM1_CLK (U)SIM1 clock data VOHmin = 1.44 V VOLmax = 0.4 V For 3.0 V (U)SIM: VIHmin = 2.1 V VILmax = 0.6 V...
  • Page 42 MA922 Hardware Design Manual For 1.8 V VIHmin = 1.26 V VILmax = 0.36 V (U)SIM2 clock USIM2_CLK VOHmin = 1.44 V VOLmax = 0.4 V signal For 3.0 V (U)SIM: VIHmin = 2.1 V VILmax = 0.6 V VOHmin = 2.4 V VOLmax = 0.4 V...
  • Page 43 MA922 Hardware Design Manual External min = 1.26 V pull-up resistors are I2C2_SCL I2C2 serial clock max = 2.1 V required. max = 0.54 V 1.8 V power min = 1.35 V domain.If max = 0.45 V unused, keep them open.
  • Page 44 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open Support VILnom=0V GPIO9 GPIO wake-up VIHnom=1.8V interrupt. RESERVED Keep pin open RESERVED Keep pin open Support VILnom=0V GPIO10 GPIO wake-up VIHnom=1.8V interrupt. Support VILnom=0V GPIO11 GPIO wake-up VIHnom=1.8V interrupt.
  • Page 45 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open UART4_RXD Receive signal min = 1.26 V 1.8 V power UART4_TXD Transmit signal max = 2.1 V domain.
  • Page 46 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open 50 Ω Main antenna SDR0_ANT0 interface impedance MeiG Smart Technology Co., Ltd. 45/119...
  • Page 47 MA922 Hardware Design Manual 50 Ω Main antenna SDR0_ANT1 interface impedance MIMO2 antenna SDR0_ANT2 interface MIMO3 antenna SDR0_ANT3 interface RESERVED Keep pin open RESERVED Keep pin open GPS antenna SDR_GNSS_ANT4 interface MeiG Smart Technology Co., Ltd. 46/119...
  • Page 48 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open CV2X_ANT5 CV2X_ANT5_FAKRA antenna interface CV2X_ANT6 CV2X_ANT6_FAKRA antenna interface Vmax = 5.25 V Power supply for VPH_5V_CV2X Vmin = 4.75 V the module’s Vnom = 5.0 V C-V2X part MeiG Smart Technology Co., Ltd.
  • Page 49 MA922 Hardware Design Manual VPH_5V_CV2X VPH_5V_CV2X VPH_5V_CV2X VBAT_RF Vmax = 4.3 V Power supply for VBAT_RF Vmin = 3.3 V the module’s RF Vnom = 3.8 V part VBAT_RF VBAT_RF VBAT_BB Vmax = 4.3 V Power supply for Vmin = 3.3 V the module’s...
  • Page 50 MA922 Hardware Design Manual VBAT_BB RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open MeiG Smart Technology Co., Ltd. 49/119...
  • Page 51 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open Support VILnom=0V GPIO14 GPIO wake-up VIHnom=1.8V interrupt. Support VILnom=0V GPIO15 GPIO wake-up VIHnom=1.8V interrupt. MeiG Smart Technology Co., Ltd. 50/119...
  • Page 52 MA922 Hardware Design Manual RESERVED Keep pin open RESERVED Keep pin open RESERVED Keep pin open PCIE2_WAKE_N PCIe wakeup Only used in min = 1.26 V RC mode and serve as input signals in max = 2.1 V PCIE2_CLKREQ_N PCIe clock request RC mode.
  • Page 53 MA922 Hardware Design Manual PCIE2_RX_M PCIE2_RX_M PCIE2_REFCLK_ PCIE2_REFCLK_P Only used in RC mode and serve as Output signals PCIE2_REFCLK_ PCIE2_REFCLK_M in RC mode. PCIE2_TX_P PCIE2_TX_P PCIE2_TX_M PCIE2_TX_M MeiG Smart Technology Co., Ltd. 52/119...
  • Page 54 MA922 Hardware Design Manual 1.8 V power I2S2_SCK I2S1 clock signal domain.Serve as output signals in min = 1.26 V master mode. Serve as input I2S2_WS I2S1 select signal signals in slave max = 2.1 V mode. max = 0.54 V min = 1.35 V...
  • Page 55 1. * means that the function is under development; 2. The above interface functions are not supported at the same time, some pins are multiplexed functions, please pay attention when choosing! 3. MA922 pin multiplexing see “MA922 _GPIO function multiplexing” MeiG Smart Technology Co., Ltd. 54/119...

  • Page 56: Power

    MA922 Hardware Design Manual 3.4 Power Table 4 MA922 module power interface description Pin Name Description 109, 111, 112, 114, Module power 235, 236, 238, 239, VBAT_RF supply,3.3~4.3V, 445, 446, 447, 448, nominal value 507, 508, 509, 510 3.8V Module power...

  • Page 57: Power Supply

    MA922 Hardware Design Manual 3.4.1 Power Supply The following figure 3 shows a reference design for +12/+24 V input power source when applying the module to 5G + C-V2X solution. The designed outputs are 5.0 V and 3.8 V, and the maximum rated current is 5 A.

  • Page 58: Reduce Voltage Drop

    MA922 Hardware Design Manual 7 . 2 u H 100nF VCC_5V 270K 47uF 47uF 47uF TPS54560BQ1 BOOT DC_I N +DC_I N 100uH 10uF 100nF 100pF 10pF 100nF 470uF COMP 100nF 16.9K 5V_EN RT/ CLK F B 1 47pF 4.7nF 1 0 K...

  • Page 59: Vdd_Ext Voltage Output

    Figure 6 Power supply design 3.4.3 VDD_EXT Voltage Output When the MA922 module is powered on normally, Pin68 output voltage is 1.8V and current load is 50mA. This output voltage can be used as an external pull-up source, such as level reference.
  • Page 60 MA922 Hardware Design Manual PWRKEY ≥2s Turn on pulse 4.7K Figure 7 Open collector driver reference boot circuit Another way to control the PWRKEY pin is to directly use a button switch. A TVS should be placed near the button for ESD protection. The reference circuit is as follows:...

  • Page 61: Shutdown

    MA922 Hardware Design Manual NOTE1 VBAT ≥500ms =1.1V ≤0.5V PWRKEY ≥38.4ms RESET_N NOTE2 ≥17.2ms Active ≥TBD GPIO6 (STATUS) ≥11.7ms VDD_WIFI_VH ≥12.6ms VDD_WIFI_VL ≥12.3ms VDD_WIFI_VM ≥15ms VDD_EXT Figure 9 Boot sequence diagram Note: Before pulling down the PWRKEY pin, make sure that the VBAT voltage is stable. It is recommended that the time interval between powering up VBAT and pulling the PWRKEY pin low is no less than 30ms.

  • Page 62: Reset Function

    2. When using the AT command to shut down, make sure that PWRKEY is always in a high level state after the shutdown command is executed, otherwise the module will automatically restart after shutting down. 3. 6 Reset Function There are two reset methods for MA922: hardware reset and AT command reset. MeiG Smart Technology Co., Ltd. 61/119...

  • Page 63: Hardware Reset

    The reset timing diagram is as follows: VBAT ≥150ms =VBAT RESET_N ≤0.3V Figure 13 RESET_N reset timing diagram 3.6.2 AT Command Reset Input AT+TRB command through MA922 UART or USB AT port to reset and restart MA922. MeiG Smart Technology Co., Ltd. 62/119...

  • Page 64: Usim/Sim Interface

    SIM card hot-plug AT command Function Description MA922 module supports (U)SIM card hot-plug via USIM_DET pins, and either low-level or high-level detection by related software detection is supported. The function is disabled by default, and can be enabledhot swap detection function By default, the SIM card command.

  • Page 65: Usb Interface

    3. 8 USB Interface The MA922 provides a USB interface. This interface is used for AT command interaction, data transfer, software debugging and version upgrading. Provides a USB interface, USB interface follows USB 3.1 Gen 2 and USB2.0 standards, USB 3.1 theoretically supports 10Gbps ultra-high speed, USB2.0...

  • Page 66: Usb Reference Circuit

    MA922 Hardware Design Manual Table 8 USB interface description Pin name Description USB insertion detection, Maximum current: 0.1 mATypical USB_VBUS 5.0 V.Test points must be reserved. USB_DP USB 2.0 Differential Data+,90Ω impedance USB_DM USB 2.0 Differential Data -,90Ω impedance USB 3.1_TX_P, USB3.1 differential 70-100Ω impedance, USB_SS_TX_P 85Ω...
  • Page 67 MA922 Hardware Design Manual USB_VBUS USB_VBUS 100 nF USB_SS_TX_P USB_SS_RX_P 100 nF USB_SS_TX_M USB_SS_RX_M 100 nF USB_SS_RX_P USB_SS_TX_P 100 nF USB_SS_TX_M USB_SS_RX_M Module Figure 17 Reference design of USB 3.1 Application In USB 3.1 applications, place C1 and C2 near the module, and place C3 and C4 near the AP. The extra stubs of trace must be as short as possible.

  • Page 68: I2S And I2C Interfaces

    MA922 Hardware Design Manual Remark The module supports master mode, but works in slave mode by default. The high-speed PHY and SuperSpeed PHY share the same USB 3.1 Gen 2 controller inside baseband chipset, so USB 2.0 and USB 3.1 cannot be used simultaneously.

  • Page 69: Pcm Interfaces

    MA922 Hardware Design Manual The following figure shows a reference design of I2S and I2C interfaces with an external codec IC. MICBIAS RESET CDC_RST_N MCLK I2S_MCLK BCLK I2S_SCK WCLK I2S_WS DOUT I2S_DIN LOUTP I2S_DOUT LOUTN I2C1_SCL I2C1_SDA 2.2K 2.2K Module Codec 1.8V...

  • Page 70: Pcie Interfaces

    MA922 Hardware Design Manual 125ųs PCM_CLK 255 256 PCM_SYNC PCM_DOUT PCM_DIN Figure 19 PCM timing diagram (Short frame synchronization) 3.11 PCIE Interfaces The module provides two PCIe interface. The PCIe 1 interface supports RC and EP modes, works in RC mode by default The PCIe 2 interface only supports RC mode，default for WLAN&BT module.
  • Page 71 MA922 Hardware Design Manual PCIE1_RX1_P PCIe1 receive 0 (+) Serve as input signals in RC PCIE1_CLKREQ_N PCIe1 clock request mode. Serve as output signals in EP mode. Require a 100 kΩ pull-up to PCIE1_WAKE_N PCIe1 wake up VDD_EXT. 1.8 V power domain.
  • Page 72 MA922 Hardware Design Manual VDD_IO 100K 100K PCIE_CLKREQ_N PCIE_CLKREQ_N PCIE_WAKE_N PCIE_WAKE_N PCIE_RST_N PCIE_RST_N PCIE_REFCLK_P PCIE_REFCLK_P PCIE_REFCLK_M PCIE_REFCLK_M 220 nF PCIE_TX_P PCIE_RX_P 220 nF PCIE_TX_M PCIE_RX_M 220 nF PCIE_RX_P PCIE_TX_P 220 nF PCIE_TX_M PCIE_RX_M WLAN Module Figure 20 PCle interface reference design...

  • Page 73: Wlan And Bluetooth Application

    MA922 Hardware Design Manual ≥1.5W ≥135° Differential Pair 1 ≥4W Differential Pair 2 Figure 21 Schematic diagram of differential routing PCIe Tx AC coupling capacitors can be anywhere along the line, but better to be placed close to the source or the receiver side to keep good signal integrity of main route on PCB. Use a serpentine to keep the difference pairs equal in the break out region as much as possible, to ensure that the traces stay differential thereafter.
  • Page 74 MA922 Hardware Design Manual Pin name Description Provide 1.8 V for external circuits.This pin can be VDD_EXT used to connect with VDD_IO of Quectel WLAN module, it also can be used as power supply for external pull up circuits. 0.95 V low-voltage power supply for Wi-Fi &...

  • Page 75: Sdio Interfaces

    MA922 Hardware Design Manual VDD_IO 100K 100K PCIE_CLKREQ_N PCIE_CLKREQ_N PCIE_WAKE_ N PCIE_WAKE_ N PCIE_RST_N PCIE_RST_N PCIE_REFCLK_P PCIE_REFCLK_P PCIE_REFCLK_M PCIE_REFCLK_M 22 0 nF PCIE_TX_ P PCIE_RX_P 220 nF PCIE_TX_M PCIE_RX_M PCIE_TX_ P 22 0 nF PCIE_RX_P 220 nF PCIE_TX_M PCIE_RX_M COEX_UAR T_RXD...
  • Page 76 MA922 Hardware Design Manual SDIO1_CLK SDIO1 clock SDIO1_DS SDIO1_DS SDIO1data bit 4 SDIO1_DATA_4 SDIO1_DATA_5 SDIO1data bit 5 SDIO1_DATA_6 SDIO1data bit 6 SDIO1_DATA_7 SDIO1data bit 7 SDIO2_DATA_0 SDIO2 data bit 0 SDIO2_DATA_1 SDIO2 data bit 1 SDIO2_DATA_2 SDIO2 data bit 2...

  • Page 77: Spi Interfaces

    MA922 Hardware Design Manual To improve signal quality, it is recommended to add resistors R1–R10 in series between the module and eMMC. Resistor R10 should be 20–30 Ω and the other resistors are 0 Ω by default. The bypass capacitors C1–11 are reserved and not mounted by default. All resistors and bypass capacitors should be placed close to the module.

  • Page 78: Rgmi Interfaces

    MA922 Hardware Design Manual The related parameters of SPI timing are shown in the table below. Table 16: Parameters of SPI Interface Timing Pin name Description Remark It generally requires a pull-up Ethernet management ETH_MDIO resistor close to the external PHY data end.
  • Page 79 MA922 Hardware Design Manual supply to power Ethernet Ethernet PHY interrupt ETH_INT input Reset output for Ethernet ETH_RST RGMII_CK_RX RGMII receive clock RGMII receive control RGMII_CTL_RX RGMII receive data bit 0 RGMII_RX_0 RGMII_RX_1 RGMII receive data bit 1 The single-ended impedance...

  • Page 80: Power Distribution

    MA922 Hardware Design Manual VDD_IO R13 R14 NM-R15 ETH_MDIO MDI O ETH_MDC ETH_INT INT N ETH_RST_N RESETN R1 0Ω RXD0 RG MII _RX_0 R2 0Ω RG MII _RX_1 RXD1 R3 0Ω RG MII _RX_2 RXD2 R4 0Ω RG MII _RX_3 RXD3 R5 0Ω...

  • Page 81: Sgmi Interfaces

    MA922 Hardware Design Manual Resistors R7–R12 should be placed near the module. Resistors R1–R6 should be placed near the Ethernet PHY. The value of R1–R15 varies with the selection of PHY. RGMII_INT and RGMII_RST_N are always 1.8 V power domain. A voltage-level translator should be used when the module I/O level does not match with PHY.
  • Page 82 MA922 Hardware Design Manual SGMII 1000BASE-T1 Ethernet IEEE，802.3bw Magnetics Connecter Module RST, INT Figure 28 Simplified block diagram of automotive Ethernet application The following figure shows a reference design of SGMII interface with PHY application. For more details, see document.

  • Page 83: Rtc

    MA922 Hardware Design Manual For each differential pair, the intra-lane length match should be less than 0.7 mm, while the inter-lane length match, that is, the trace length matching between the Tx, Rx and reference clock pairs is not required.

  • Page 84: Imu Interrupt Interfaces

    Figure 31 IMU reference design circuit 3.20 UART Interfaces The MA922 module has 5 serial ports:UART1,UART2,UART3,UART4 and debug UART. The main features of the main serial port and debug serial port are described below. The main serial port supports 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, 115200bps, 230400bps, 460800bps, 921600bps baud rate, the default baud rate is 115200bps, used for data transmission and AT command transmission.
  • Page 85 Pin name Description UART1_TXD Module sends data UART1_RXD Module accepts data UART1_CTS below: IAM-20680HT IMU interrupt signal, suspended if not used. IMU interrupt signal, suspended if not used.
  • Page 86 MA922 Hardware Design Manual (Connects to DTE’s RTS) UART2_TXD Module sends data UART2_RXD Module accepts data DTE clear to send signal from DCE UART2_CTS (Connects to DTE’s CTS) DTE request to send signal to DCE UART2_RTS (Connects to DTE’s RTS)
  • Page 87 MA922 Hardware Design Manual 4.7K VDD_EXT VDD_EXT MCU/ARM Module /TXD /RXD 4.7K VDD_EXT VDD_MCU /RTS /CTS GPIO EINT GPIO Figure 33 UART signal connection 2 Remark: When designing, it is recommended to reserve 0R resistors and parallel capacitors on the main serial port and debug serial port lines, which can be added on the bottom plate to prevent RF interference.

  • Page 88: Low Power Mode

    2. It is prohibited to supply any voltage to ADC pins when VBAT is removed. 3. It is recommended to use resistor divider circuit for ADC application. 3.23 USB_BOOT Interface MA922 supports USB_BOOT function . Customers can short- circuit USB_BOOT and VDD_EXT before MeiG Smart Technology Co., Ltd. 86/119...
  • Page 89 MA922 Hardware Design Manual the module is turned on, and the module will enter the forced download mode when the module is turned on. In this mode, the module can be upgraded through the USB interface. Table 25 USB_BOOT pin definition...

  • Page 90: Antenna Interfaces

    MA922 Hardware Design Manual 4. Antenna Interfaces The MA922 module is designed with three antenna interfaces, and the impedance of the antenna interface is 50Ω. Table 26 Antenna interface pin definition Pin name Pin number Description Remark main antenna ANT_MAIN 50Ω...

  • Page 91: Introduction Of Antenna Interface

    MA922 Hardware Design Manual 4.1 Introduction of Antenna Interface MA922 provides three antenna pins: ANT_MAIN, BT-ANT, ANT_GNSS to improve the TDD-LTE/ FDD-LTE, WIFI/BT, GNSS transceiver performance of the product. It is recommended that users use an antenna with an impedance of 50Ω that matches the RF connector on the module end.

  • Page 92: Rf Reference Circuit

    MA922 Hardware Design Manual 4.2 RF Reference Circuit 4.2.1 Antenna Connection Reference Design SDR0_ANT0, SDR0_ANT1, SDR0_ANT2, SDR0_ANT3, CV2X_ANT5, CV2X_ANT6, SDR_GNSS_ANT4 antenna connection reference design circuit is shown in the figure below. In order to obtain better RF performance, the following four points should be paid attention to in schematic design and PCB layout: 1.
  • Page 93 MA922 Hardware Design Manual Figure 36 Microband line structure of two-layer PCB plates Complete structure of the coplanar waveguide Figure 37 Co-planar waveguide structure of two-layer PCB plates Figure 38 Multi-layer PCB board common-planar waveguide structure (reference for the third...

  • Page 94: Antenna Installation

    Maximum input power (W): 0.1 W Input Impedance (ohm): 50 Polarization Type: Vertical Cable insertion loss: < 1.5dB 4.3.2 RF Output Power The RF output power of the MA922 is shown in the table below. MeiG Smart Technology Co., Ltd. 92/120...

  • Page 95: Rf Receive Sensitivity

    LTE-TDD B38 -97.5dBm -96.3dBm 4.3.3 RF Receive Sensitivity LTE-TDD B39 -97.5dBm -96.3dBm LTE-TDD B40 -97.5dBm -96.3dBm Table 29 MA922 module RF receiving sensitivity LTE-TDD B41 -97.5dBm -94.3dBm WCDMA B1 -106.7 -106.7 Receiving Sensitivity (Typical BW ) -10M FrequencyWCDMA B8 -106.7 -103.7...

  • Page 96: Operating Frequency

    MA922 Hardware Design Manual document. 4.3.4 Operating Frequency Table 30 MA922 operating frequency 3GPP frequency band Send Take over Unit EGSM900 880~915 925~960 DCS1800 1710~1785 1805~1880 WCDMA B1 1920–1980 2110–2170 WCDMA B8 880–915 925–960 LTE-FDD B1 1920~1980 2110~2170 LTE-FDD B3...

  • Page 97: Electrical Characteristics

    Temperature + 85 ° C Range MA922 module is recommended to work in the environment of -30~+70 ℃ . It is recommended that the Emergency Call + 95 ° C application side consider temperature control measures under harsh environmental conditions. At the same time, the extended operating temperature range of the module is provided.

  • Page 98: Module Power Consumption Range

    MA922 Hardware Design Manual Module Pilot Test case Result (mA) state projects Shutdown Maintain normal voltage (3.8 V) Power Consumption Range 5.3 Module Shutdown power supply in case of leakage power failure current Table 33 Power consumption Bottom Power on, no sim card, no T card, test the minimum...
  • Page 99 MA922 Hardware Design Manual for 10 minutes. GSM850 CH251 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state through AT commands (USB is in the suspended state);...
  • Page 100 MA922 Hardware Design Manual DCS CH698 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state (USB is suspended) through AT commands; 3) The module under test remains in the...
  • Page 101 MA922 Hardware Design Manual 2) The module is set to sleep state (USB is suspended) through AT commands; 3) The module under test remains in the state of no data transmission for 10 minutes, and records Average current for 10 minutes.
  • Page 102 MA922 Hardware Design Manual state of no data transmission for 10 minutes, and records Average current for 10 minutes. Band3 CH19575 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state through AT command (USB is in the suspended state);...
  • Page 103 MA922 Hardware Design Manual Band5 CH20450 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state (USB is suspended) through AT commands; 3) The module under test remains in the...
  • Page 104 MA922 Hardware Design Manual 2) The module is set to sleep state through AT command (USB is in the suspended state); 3) The module under test remains in the state of no data transmission for 10 minutes, and records Average current for 10 minutes.
  • Page 105 MA922 Hardware Design Manual state of no data transmission for 10 minutes, and records Average current for 10 minutes. Band38 CH38250 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state through AT command (USB is in the suspended state);...
  • Page 106 MA922 Hardware Design Manual Band39 CH38600 1) The module under test is powered on and successfully registered with the data network; 2) The module is set to sleep state through AT command (USB is in suspended state); 3) The module under test remains in the...
  • Page 107 MA922 Hardware Design Manual 2) The module is set to sleep state (USB is suspended) through AT commands; 3) The module under test remains in the state of no data transmission for 10 minutes, and records Average current for 10 minutes.
  • Page 108 MA922 Hardware Design Manual recorded. Band3 CH19250 module under test is kept for 10 minutes without data transmission, and the average current for 10 minutes is recorded. Band3 CH19900 module under test is kept for 10 minutes without data transmission, and the average current for 10 minutes is recorded.
  • Page 109 MA922 Hardware Design Manual state, the DRX recorded. monitoring period is 1.28s , no data Band34 CH36250 transmission, module under test is kept for 10 minutes and the USB is without data transmission, and the in the average current for 10 minutes is suspended recorded.
  • Page 110 MA922 Hardware Design Manual recorded. Band40 CH38700 module under test is kept for 10 minutes without data transmission, and the average current for 10 minutes is recorded. Band40 CH39600 module under test is kept for 10 minutes without data transmission, and the average current for 10 minutes is recorded.
  • Page 111 MA922 Hardware Design Manual module under test conducts data transmission and keeps it for 5 minutes, and records the average current for 5 minutes Band1 23dBm CH18550 module under test performs data transmission and keeps it for 5 minutes, and records the average current for 5...
  • Page 112 MA922 Hardware Design Manual Band5 23dBm CH20450 module under test conducts data transmission and keeps it for 5 minutes, and records the average current for 5 minutes Band5 23dBm CH20600 module under test conducts data transmission and keeps it for 5 minutes,...
  • Page 113 MA922 Hardware Design Manual Band34 23dBm CH36250 module under test conducts data transmission and keeps it for 5 minutes, and records the average current for 5 minutes Band34 23dBm CH36300 module under test conducts data transmission and keeps it for 5 minutes,...
  • Page 114 MA922 Hardware Design Manual Band39 23dBm CH38300 module under test conducts data transmission and keeps it for 5 minutes, and records the average current for 5 minutes Band39 23dBm CH38600 module under test conducts data transmission and keeps it for 5 minutes,...
  • Page 115 MA922 Hardware Design Manual Band41 23dBm CH40290 module under test performs data transmission and keeps it for 5 minutes, and records the average current for 5 minutes Band41 23dBm CH41190 module under test performs data transmission and keeps it for 5 minutes,...

  • Page 116: Esd Characteristics

    MA922 Hardware Design Manual 38A_n78A CH636666 @ 23.15 dBm 38A_n78A CH650000 @ 23.23 dBm 40A_n78A CH623334 @ 22.97 dBm 40A_n78A CH636666 @ 22.94 dBm 40A_n78A CH650000 @ 23.06 dBm 1A_n77A CH623334 @ 22.90 dBm 1A_n77A CH650000 @ 22.80 dBm 1A_n77A CH676666 @ 22.92 dBm 3A_n77A CH623334 @ 25.75 dBm...

  • Page 117: Mechanical Characteristics

    MA922 Hardware Design Manual 6. Mechanical Characteristics This chapter describes the mechanical dimensions of the module, all dimensions are in millimeters, and all dimensions without tolerances are ± 0.05mm. 6.1 Module Mechanical Dimensions 3.45±0 .2 1.60± 0.16 54.50±0.2 Figure 39 Top view and side view dimension drawing (unit: mm) 54.50...

  • Page 118: Recommended Package

    MA922 Hardware Design Manual 6.2 Recommended Package 54.50 C1.5 2.00 3.78 3.78 2.10 C1.35 0.70 1. 4 0 1.30 10.00 ? 1,2 2.50 1.40 9.05 3.50 1.70 1.705.85 1.70 1.50 0.70 0.70 2.10 a. Recommended packaging 54.50 C1.5 2.10 3.78 3 .

  • Page 119: Module Top View

    MA922 Hardware Design Manual 6.3 Module Top View Figure 42 Module top view 6.4 Module Bottom View Figure 43 Bottom view of the module MeiG Smart Technology Co., Ltd. 117/120...

  • Page 120: Storage And Production

    7. Storage and Production 7.1 Storage The MA922 ships in a vacuum-sealed bag. The storage of modules must comply with the following conditions: 1. When the ambient temperature is lower than 40 degrees Celsius and the air humidity is lower than 90%, the module can be stored in a vacuum-sealed bag for 12 months;...

  • Page 121: Production Welding

    MA922 Hardware Design Manual 7.2 Production Welding Figure 44 Reflow Soldering Temperature Curve MeiG Smart Technology Co., Ltd. 119/120...

  • Page 122: Package

    MA922 Hardware Design Manual 7.3 Package The MA922 is packaged in a tray. The packaging size of the tray is 310*200*20mm ( **PCS ) and placed as follows: Figure 45 Pallet Packaging(undetermined) MeiG Smart Technology Co., Ltd. 120/120...

  • Page 123: Appendix A Reference Documents And Term Abbreviations

    8. Appendix A Reference Documents and Term Abbreviations 8.1 Reference Document MA922 module specifications; MA922 AT command set; MA922 EVB User Manual; MA922 reference design circuit; MA922 Application Business Process Manual. 8.2 Term Abbreviation Table 34 Abbreviations of terms Abbreviation English description Chinese description 自适应多速率...
  • Page 124 MA922 Hardware Design Manual 国际电工技术委员会 International Electro-technical Commission 国际移动设备标识 IMEI International Mobile Equipment Identity CDMA终端的身份识别码 MEID Mobile Equipment Identifier 输入/输出 Input/Output 国际标准化组织 International Standards Organization 国际电信联盟 International Telecommunications Union 比特每秒 bits per second 发光二极管 Light Emitting Diode 机器到机器 Machine to machine 移动台发起的...

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