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MeiG_SLM320_Hardware Design Manual

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3KO-923.GXJ]GXK

*KYOMT3GT[GR

Controlled Version Number: V1.2

Release date：2021-06-18

Summary of content (92 pages)

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MeiG_SLM320_Hardware Design Manual 3KO- 923 .GXJ]GXK *KYOMT 3GT[GR Controlled Version Number: V1.
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MeiG_SLM320_Hardware Design Manual Important Notice Copyright Notice All rights reserved. MeiG Smart Technology Co., Ltd This manual and all its contents are owned by MeiG Smart Technology Co., Ltd and protected by Chinese laws and relevant copyright laws in applicable international conventions. Without the written authorization of MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual Revision History Revision Date Description V1.0 2020-04-21 First edition V1.1 2021-04-22 Modify file format and correct description V1.2 2021-06-18 Update SLM320-LA frequency performance for B2/B4 MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual Contents Important Notice ....................................................................................................................................... 1 Revision History ....................................................................................................................................... 2 Contents ....................................................................................................................................................
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MeiG_SLM320_Hardware Design Manual 5.2 5.3 Radio frequency reference circuit ........................................................................................... 39 Installation of antenna ............................................................................................................. 40 5.3.1 Antenna requirements................................................................................................... 40 5.3.2 RF output power ..................................................
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MeiG_SLM320_Hardware Design Manual 1 Introduction This document describes SLM320 module air interface and hardware interface that connected to the clients’ applications. This document can help customers quickly understand SLM320 module interface specification, electrical characteristics, mechanical specifications and related product information.
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MeiG_SLM320_Hardware Design Manual 1.1 Safety instruction Following below safety principles, user could ensure personal safety and protect products and work environment from potential damage. Driving safety first! Do not use a hand-held mobile terminal while driving, unless it has a hands-free function. Stop before making a call! Before boarding, please turn off the wireless function of the mobile terminal.
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MeiG_SLM320_Hardware Design Manual 2 2.1 Product Overview General Description SLM320 is a wireless communication module that supports TDD-LTE/FDD-LTE/GSM, supports TDD-LTE FDD-LTE GPRS network data connection, and can provide digital voice (PCM) and analog voice, SMS and other functions such as Wi-Fi Scan/BT, GNSS* (GPS/GLONASS/BD).
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MeiG_SLM320_Hardware Design Manual LTE Characteristic GSM character Network protocol features Short Message service（SMS）  The maximum supportCAT1 Bis  Support 1.4 ~ 20 MHZ radio frequency bandwidth  FDD：The maximum UL rate is 5Mbps, and the maximum DL rate is 10Mbps  TDD：He maximum UL rate is 2Mbps, and the maximum DL rate is 8Mbps  CSD transmission rate: 9.6 KBPS, 14.
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MeiG_SLM320_Hardware Design Manual  Main antenna interface（ANT_MAIN）     Size：32.0×29.0×2.
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MeiG_SLM320_Hardware Design Manual 2.3 Functional block diagram Following is the functional block diagram of SLM320, illustrating its main functions.  PMU  BBU  Internal memory  The radio frequency part  peripheral interface Figure 1 MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 2.4 Evaluation Kit To facilitate testing and use of the SLM320 module, MeiG provides an evaluation Kit to customer. Evaluation Kit includes USB cables, antennas, and other peripherals. Please refer to the specific use method of evaluation board MeiG_SLM320_Mini PCIe_EVB_UGD MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 3 3.1 Application Interface General Description SLM320 adopts LCC+LGA interface, total 144 pins, including 80 LCC pins and 64 LGA pins, providing the following functional interfaces:                  Power port USB2.0 High-Speed port UART port USIM/SIM port（support 3V、1.
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MeiG_SLM320_Hardware Design Manual 3.2 Pin Assignment The following figure shows the pin assignment of SLM320 module. Figure 2 Pin Assignment Note: The pin name in the pin diagram is the actual wiring name inside the module. MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 3.3 PIN Description The following table shows the definition of each pin in the SLM320 module. Table 3 IO Parameter Definitions Type Description IO I/O two-way signal. DI Digital input signal. DO Digital output signal. OD Open drain output signal. AI Analog signal input BOT Two-way signal with leaky output. PI power input PO power output Table 4 Pin number Pin Description Pin name I/O Electrical level 1 WAKEUP_IN I/O VILnom=0V VIHnom=1.
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MeiG_SLM320_Hardware Design Manual Module network mode indication signal If not, please suspend this pin Module network status indicator If not, please suspend this pin Module digital level, 1.8V output, 50mA load capacity If not, please suspend this pin 5 NET_MODE I/O VOLnom=0V VOHnom=1.8V 6 NET_STATUS I/O VOLnom=0V VOHnom=1.8V 7 VDD_EXT PO 1.8V 8 GND G GND 9 GND G GND 10 USIM_GND G GND 11 DBG_RXD I 12 DBG_TXD O VOLnom=0V VOHnom=1.
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MeiG_SLM320_Hardware Design Manual 19 GND G GND 20 RESET_N I VILnom=0V VIHnom=1.8V 21 PWRKEY I VILnom=0V VIHnom=1.8V 22 GND G GND 23 SD1_DETECT I VILnom=0V VIHnom=1.8V 24 PCM_IN(I2S_DI) I VILnom=0V VIHnom=1.8V 25 PCM_OUT(I2S_ DO) O VOLnom=0V VOHnom=1.8V 26 PCM_SYNC(I2S _SYNC) I/O 0V/1.8V 27 PCM_CLK(I2S_ CLK) I/O 0V/1.8V 28 SDC2_DATA_3 I/O 1.8V/3.0V 29 SDC2_DATA_2 I/O 1.8V/3.0V 30 SDC2_DATA_1 I/O 1.8V/3.0V 31 SDC2_DATA_0 I/O 1.8V/3.0V 32 SDC2_CLK O 1.
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MeiG_SLM320_Hardware Design Manual 35 WIFI_ANT(BT_A NT) I WiFi / BT antenna If not, please suspend this pin 36 GND G GND 37 SPI_CS_N O VOLnom=0V VOHnom=1.8V 38 SPI_MOSI O VOLnom=0V VOHnom=1.8V 39 SPI_MISO I VILnom=0V VIHnom=1.8V 40 SPI_CLK O VOLnom=0V VOHnom=1.8V 41 I2C_SCL OD VOLnom=0V VOHnom=1.8V 42 I2C_SDA BOT 0V/1.
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MeiG_SLM320_Hardware Design Manual 50 GND G GND 51 GND G GND 52 GND G GND 53 GND G GND 54 GND G GND 55 RESERVED 56 GND RESERVED G 57 VBAT_RF PI 58 VBAT_RF PI 59 VBAT_BB PI 60 VBAT_BB PI GND Vmax=4.5V Vmin=3.2V Vnorm=3.6V Vmax=4.5V Vmin=3.2V Vnorm=3.6V Vmax=4.5V Vmin=3.2V Vnorm=3.6V Vmax=4.5V Vmin=3.2V Vnorm=3.6V 61 STATUS O VOLnom=0V VOHnom=1.8V 62 RI* O VOLnom=0V VOHnom=1.8V 63 UART2_TXD O VOLnom=0V VOHnom=1.
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MeiG_SLM320_Hardware Design Manual If not, please suspend this pin 69 USB_DP I/O USB signal DP 70 USB_DM I/O USB signal DM 71 USB_VBUS AI 72 GND G Vnorm=5.0V USB insertion detection signal GND Keyboard matrix input signal If not, please suspend this pin Keyboard matrix input signal If not, please suspend this pin SPK_P If not, please suspend this pin 73 KEYOUT2 I 74 KEYOUT3 I 75 SPK_P O 76 RESERVED 77 SPK_N O 78 KEYIN1 I VILnom=0V VIHnom=1.
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MeiG_SLM320_Hardware Design Manual VOLnom=0V VOHnom=1.8V 84 KEYOUT1 O 85-112 GND G 113 MIC_P1 I VOLnom=0V VOHnom=1.8V 114 MIC_N1 I VOLnom=0V VOHnom=1.8V I VILnom=0V VIHnom=1.
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MeiG_SLM320_Hardware Design Manual 124 125 SPILCD_SDC SPILCD_SI/O O 1.8V/3.0V I/O 1.8V/3.0V I VILnom=0V VIHnom=1.8V SPILCD_SDC SPILCD_SI/O If not, please suspend this pin Module clear send If not, please suspend this pin 126 UART2_RTS 127 RESERVED RESERVED 128 RESERVED RESERVED 129 SD1_DATA3 I/O 1.8V/3.0V 130 SD1_DATA2 I/O 1.8V/3.0V 131 SD1_DATA1 I/O 1.8V/3.0V 132 SD1_DATA0 I/O 1.8V/3.0V 133 SD1_CLK O 1.8V/3.0V 134 SD1_CMD O 1.8V/3.
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MeiG_SLM320_Hardware Design Manual 141 I2C3_SCL OD VOLnom=0V VOHnom=1.8V I2C3_SCL 142 I2C3_SDA BOT 0V/1.8V I2C3_SDA RFCTL_1 If not used, suspend this pin RFCTL_2 If not used, suspend this pin 143 RFCTL_1 O VOLnom=0V VOHnom=1.8V 144 RFCTL_2 O VOLnom=0V VOHnom=1.8V The module is actually connected to rfctl 3 The module is actually connected to rfctl 4 Remark: 1. * Is a function under development； 2.
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MeiG_SLM320_Hardware Design Manual 3.4.1 Power Supply SLM320 module is powered through VBAT pin. The power supply recommended reference design is shown in Figure 3 VBAT VBAT_RF VBAT_BB C1 + D1 TVS 100uF C2 C3 C4 100nF 33pF 10pF C5 + 100uF C6 C7 100nF 33pF C8 10pF Module Figure 3 3.4.2 Module power supply circuit Reduce voltage drop SLM320 power supply range is from 3.2 V to 4.
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MeiG_SLM320_Hardware Design Manual the line. 3.4.3 Power Supply Reference Circuit The design of the module power supply is very important, because the performance of the module depends largely on the power supply. The SLM320 must select a power source that provides at least 2A current capability. If the voltage difference between the input voltage and the module supply voltage is not very large, it is recommended to choose LDO as the supply.
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MeiG_SLM320_Hardware Design Manual 3.5 Start up 3.5.1 PWRKEY Pin boot When the SLM320 module is in shut down mode, the module can be turned on by pulling down the PWRKEY for at least 1s. It is recommended to use an open set drive circuit to control PWRKEY pin. The reference circuit is as following: PWRKEY ≥500ms 4.7K Turn on pulse 47K Figure 6 Open set drive reference boot circuit Another way to control the PWRKEY pin is through a push button switch.
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MeiG_SLM320_Hardware Design Manual Note: Before pulling down PWRKEY pin, VBAT voltage should be guaranteed to be stable. It is recommended that the time interval between powering up VBAT and pulling down PWRKEY pins should be no less than 30ms. If the module needs to be powered on and started automatically, PWRKEY pin can be directly connected to the ground. The resistance value to GND should not exceed 4k at most. It is recommended to use 0R. 3.5.
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MeiG_SLM320_Hardware Design Manual The reference circuit is similar to the PWRKEY control circuit, and the customer can control the RESET_N pin by using an open set drive circuit or a button. RESET_N 4.7K Reset pulse 47K Figure 9 RESET_N reset the open set reference circuit S2 RESET_N TVS Close to S2 Figure 10 RESET_N reset button reference circuit The reset sequence diagram is as follows: VBAT ≥150ms VIH≥1.6V RESET_N VIL≤0.3V Figure 11 RESET_N reset sequence diagram 3.6.
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MeiG_SLM320_Hardware Design Manual 3.7 USIM/SIM Interface SLM320 supports both 1.8V and 3.0V SIM cards. Table 7 USIM/SIM interface description Pin Name I/O Pin Pin description USIM_DATA I/O 15 USIM/SIM data signal USIM_CLK O 16 USIM/SIM clock signal USIM_RESET O 17 USIM/SIM reset signal USIM_VDD O 14 USIM/SIM Power USIM_PRESENCE I 13 USIM/SIM Hot swap detection signal SLM320 module supports USIM card hot-plugging function through SIM0_DET pin and supports high level detection.
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MeiG_SLM320_Hardware Design Manual The reference circuit is shown in the figure below, with SIM card hot swap function. VDD_EXT USIM_VDD 51K 15K USIM_GND USIM_VDD Module 100nF USIM_RST USIM_CLK 22R USIM_DET 22R USIM CARD CONNECTOR VCC GND RST VPP IO CLK USIM_DATA 22R 33PF 33PF 33PF GND Figure 12 Reference design drawing of the booth with hot-plug function If user does not need USIM card hot-plug detection, keep the USIM_DET pin open.
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MeiG_SLM320_Hardware Design Manual 3.8 USB port The SLM320 provides a USB interface conforming to the USB 2.0 specification. This interface is used for AT command interaction, data transfer, software debugging and version upgrading, etc. 3.8.1 USB Pin Description The SLM320 module provides a USB2.0 interface.
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MeiG_SLM320_Hardware Design Manual In USB interface circuit design, to ensure USB performance, the following principles are recommended in circuit design:      The module USB_VBUS is not used to power the module, but to detect USB insertion and unplugging； In order to reduce the USB high speed data transmission of signal interference, in USB_DM USB_DP interface circuit and concatenated R1 and R2 can improve the accuracy of data transmission, 0 Ω R1 and R2 are recommended； In order to improve the a
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MeiG_SLM320_Hardware Design Manual Table 11 Description of debugging serial port pin Pin Name I/O PIN Description DBG_RXD I 11 Module receiving data DBG_TXD O 12 Module send data Table 12 Serial port logic level Parameter Min value Max value Units VIL -0.3 0.6 V VIH 1.2 2.0 V VOL 0 0.45 V VOH 1.35 1.8 V The serial port level of SLM320 module is 1.8V. If the client host is 3.3V, the level shifter needs to be added in the serial port application.
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MeiG_SLM320_Hardware Design Manual Another level converter circuit is shown in the figure below. The input and output circuit design of the following dotted line section can refer to the solid line section, but pay attention to the connection direction. At the same time, this level conversion circuit is not suitable for applications with baud rate over 460Kbps.
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MeiG_SLM320_Hardware Design Manual Table 14 Working status of network indicator pin PIN Name NET_MODE NET_STATUS Pin working state Working status indicated High level Register LTE network status Low level other Slow flash (200ms high / 1800ms low) Net searching status Slow flash (1800ms high / 200ms low) position in readiness Flash (125ms high / 125ms low) Data transmission mode High level On the phone The reference circuit is shown in the figure below: Figure 17 Reference design of net
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MeiG_SLM320_Hardware Design Manual The LED indication circuit is shown in the figure below. When the module starts up normally, status defaults to high resistance state. Figure 18 3.11 status reference circuit Low Power Mode 3.11.
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MeiG_SLM320_Hardware Design Manual After that, when the DTR is set high or the wakeup pin is set low, and no interrupt is generated (such as GPIO interrupt or serial port data transmission), the GSM part will automatically enter the deepsleep mode. At + CSCLK =2: when no interrupt is generated, the GSM part will automatically enter deepsleep mode. 3.11.3 Ultra low power mode Use the following AT instruction to put the module into ultra-low power mode (for power test).
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MeiG_SLM320_Hardware Design Manual 3.13 USB_BOOT Port SLM320 supports USB_BOOT. The client can shorten USB_BOOT and VDD_EXT before starting the module, and then the module will enter the forced download mode. In this mode, the module can be upgraded via USB interface. Table 18 USB_BOOT pin definition Pin Name I/0 Pin USB_BOOT I 115 VDD_EXT PO 7 MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 4 4.1 GNSS Receiver General Description SLM320 use the independent GPS chip，includes a fully integrated global navigation satellite system solution that supports GPS, GLONASS, BeiDou. It supports standard NMEA-0183 protocol. 4.2      4.
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MeiG_SLM320_Hardware Design Manual 5 Antenna interface SLM320 module design interface, there are three antennas, the antenna impedance 50Ω. Table 19 Definition of pin of antenna interface Pin Name Pin Number Description I/O Remark ANT_MAIN 49 main antenna port IO 50Ω impedance BT_ANT 35 WIFI/BT antenna port IO 50Ω impedance ANT_GNSS 47 GPS antenna port IO 50Ω impedance 5.
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MeiG_SLM320_Hardware Design Manual 4. by default; PCB layout, Module RF port to the antenna between lines as short as possible, and need to plate factory for RF line do 50 Ω impedance control. Figure 19 RF reference circuit 5.3 Installation of antenna 5.3.
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MeiG_SLM320_Hardware Design Manual Gain (dBi): 1 Maximum Inupt (W): 0.1W Input impedance (ohm): 50 Polarization Type: vertical direction Cable insertion loss: < 1.5dB VSWR: < 2 Gain (dBi): 1 Maximum input power (W): 0.1W GNSS Input impedance (ohm): 50 Polarization type: vertical Cable insertion loss:< 1.5dB 5.3.2 RF output power The RF output power of SLM320 is shown in the following table.
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MeiG_SLM320_Hardware Design Manual LTE-TDD B28 23dBm±2.7dB <-39dBm LTE-TDD B34 23dBm±2.7dB <-39dBm LTE-TDD B38 23dBm±2.7dB <-39dBm LTE-TDD B39 23dBm±2.7dB <-39dBm LTE-TDD B40 23dBm±2.7dB <-39dBm LTE-TDD B41 23dBm±2.7dB <-39dBm 5.3.3 RF reception sensitivity Table 22 SLM320 module RF reception sensitivity Frequency Reception sensitivity (typical value BW) -10M Dominant set Diversity Dominant + Diversity 3GPP (Dominant + Diversity) EGSM900 -108dBm NA NA -102.
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MeiG_SLM320_Hardware Design Manual LTE-TDD B41 -97.5dBm NA NA -94.3dBm Remark: Other sub-model and frequency information will be reflected in subsequent versions of the document. 5.3.
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MeiG_SLM320_Hardware Design Manual WIFI/BT 2400-2483 2400~2483 MHZ GPS / 1575.42±1 MHZ BDS / 1559~1563 MHZ Glonass / 1597~1606 MHZ MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 5.3.5 OTA Antenna requirements Table 24 Network Mode GSM TDD-LTE Antenna index requirements TIS (dBm) 850/900 26 <-102 1800(DCS) 26 <-102 1900(PCS) 26 <-102 Band34 19 <-94 Band38 19 <-94 Band39 19 <-94 Band40 19 <-94 Band41 19 <-94 19 <-94 Band2 19 <-94 Band3 19 <-94 Band4 19 <-94 Band5 19 <-94 Band7 19 <-94 Band8 19 <-94 Band20 19 <-94 Band28 19 <-94 Band1 FDD-LTE Gain Peak TRP (dBm) Band VSWR <2.
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MeiG_SLM320_Hardware Design Manual 6 6.1 Electrical characteristics Absolute Maximum Ratings Absolute maximum ratings refer to the maximum voltage range that the module supply voltage and digital and analog input/output interfaces can withstand. Work outside this range may cause damage to the product. Table 25 Absolut Maximum Ratings Parameters Description Min Typical value Max Units VBAT Power supply -0.3 3.6 5.5 V GPIO Digital I/O level supply voltage -0.3 1.8 2.
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MeiG_SLM320_Hardware Design Manual Table 27 Electrical characteristics of power supply operating state Parameters I/O Min Model Max Unit VBAT I 3.4 3.8 4.5 V VBUS I 4.5 5.0 9.2 V USIM_VDD O 1.7/2.75 1.8/2.85 1.9/2.95 V 6.4 Module Power Consumption Range Table 28 Power consumption State of the module Test Item Test Case Result (mA) Power off Shutdown leakage current Maintain normal voltage (3.
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MeiG_SLM320_Hardware Design Manual GSM900 MeiG Smart Technology Co., Ltd transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. GSM850 CH251 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state)； 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual DCS PCS MeiG Smart Technology Co., Ltd DCS CH698 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual FDD The module is powered on, and the DRX monitoring period of the idle state on the network is 1.28s With no data transfer, the USB is in a suspended state MeiG Smart Technology Co., Ltd 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band2 CH18650 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual Band3 CH19250 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual TDD The module is powered on, and the DRX monitoring period of the idle state on the network is 1.28s With no data transfer, the USB is in a suspended state MeiG Smart Technology Co., Ltd transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual standby FDD The module is powered on, and the DRX monitoring MeiG Smart Technology Co., Ltd Band40 CH39600 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual period of the idle state on the network is 1.28s With no data transfer, USB is active MeiG Smart Technology Co., Ltd the average current for 10 minutes. Band1 CH18050 Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band1 CH118550 Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual TDD The module is powered on, and the DRX monitoring period of the idle state on the network is 1.28s MeiG Smart Technology Co., Ltd Band4 CH20375 Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band5 CH20525 Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual With no data transfer, the USB is in a suspended state Real network data sleep Data transmission FDD maintained for 10 minutes and recorded the average current for 10 minutes. Band40 CH38700 Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual transmission and maintains for 5 minutes, and records the average current for 5 minutes Band1 23dBm CH18550 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band2 0dBm The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band2 10dBm The tested module carries out data transmission and maintains for 5 minutes, and records the averag
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MeiG_SLM320_Hardware Design Manual Band3 23dBm CH19250 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band3 23dBm CH19900 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band4 0dBm The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band4 10dBm The tested module carries out data transmiss
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MeiG_SLM320_Hardware Design Manual and records the average current for 5 minutes Band5 23dBm CH20450 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band5 23dBm CH20600 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band7 0dBm The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band7 10dB
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MeiG_SLM320_Hardware Design Manual TDD MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual and records the average current for 5 minutes Band40 23dBm CH39150 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band40 23dBm CH38700 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minutes Band40 23dBm CH39600 The tested module carries out data transmission and maintains for 5 minutes, and records the average current for 5 minute
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MeiG_SLM320_Hardware Design Manual GSM850 GSM900 Insert the unicom card, the actual network standby, use AT command to query and register the network, and record the 10-minute average current. Insert the telecom card, the actual network standby, use AT command to query and register the network, and record the average current of 10 minutes.
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MeiG_SLM320_Hardware Design Manual the average current for 10 minutes。 DCS MeiG Smart Technology Co., Ltd GSM900 CH1 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual PCS FDD The module is powered on, and the DRX monitoring period of the idle state on MeiG Smart Technology Co., Ltd and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual the network is 1.28s With no data transfer, the USB is in a suspended state MeiG Smart Technology Co., Ltd state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual the average current for 10 minutes. Band2 CH19150 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band5 CH20600 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual the average current for 10 minutes. Band4 CH20175 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band8 CH21500 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual the average current for 10 minutes. Band20 CH24300 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual Data transmission TDD 1) Room temperature; 2) Dc power supply is used to supply the module, and the voltage is set at 3.8V; MeiG Smart Technology Co., Ltd and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes. Band39 CH38450 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual the average current for 10 minutes. Band40 CH39600 1) The tested module was powered on, and the data network was successfully registered; 2) Set the module to sleep state through AT instruction (USB is in suspended state); 3) Under the condition of no data transmission, the tested module maintained for 10 minutes and recorded the average current for 10 minutes.
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MeiG_SLM320_Hardware Design Manual 6.5 Environmental reliability requirements Table 29 Environmental reliability requirements Test Item Test Condition LTST The temperature is -40ȭ, and the shutdown lasts for 24 hours HTST The temperature is +85ȭ, and the shutdown lasts for 24 hours ermal shock-TST In the shutdown state, the temperature was -40ȭ and +85ȭ for 1h respectively.
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MeiG_SLM320_Hardware Design Manual GND ±4 KV GND Antenna interface ±4 KV Antenna interface MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 7 Mechanical characteristics This section describes the mechanical dimensions of the module, all in millimeters; All dimensions not marked with tolerance, tolerance is ±0.05mm. 7.1 Module Mechanical Dimensions Figure 20 Module top and side dimensions (unit: mm) a. Bottom view size MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual b. Bottom view size Figure 21 bottom view dimension (unit: mm) 7.2 Recommended Footprint Figure 22 Recommended package (top view) (unit: mm) MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 7.3 Top View of Module Figure 23 Top view of the module 7.4 Bottom View of Module Figure 24 Bottom view of the module MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 8 8.1 Storage and production Storage SLM320 is shipped in vacuum sealed bags. The storage of modules shall be subject to the following conditions: 1. 2. 3. 4.
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MeiG_SLM320_Hardware Design Manual 8.3 Packaging SLM320 adopts tray packaging, shown as below: Figure 26 SLM320 in tray packaging MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 9 Appendix A refers to documentation and term abbreviations 9.1      Reference File SLM320 Module specifications; SLM320 AT Commands; SLM320 EVB user's manual SLM320 Reference design circuit; SLM320 Apply the business process manual. 9.
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MeiG_SLM320_Hardware Design Manual ESD Electrostatic Discharge FR Frame Relay GMSK Gaussian Minimum Shift Keying GPIO General Purpose Input Output GPRS General Packet Radio Service GSM Global Standard for Mobile Communications HR Half Rate HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access HSPA HSPA High-Speed Packet Access HSPA+ HSPA High-Speed Packet Access+ IEC International Electro-technical Commission IMEI International Mobile Equipment Identity MEI
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MeiG_SLM320_Hardware Design Manual PCS Personal Cellular System PCM Pulse Code Modulation PCS Personal Communication System PDU Packet Data Unit PPP Point-to-point protocol PS Packet Switched QPSK Quadrate Phase Shift Keying SIM Subscriber Identity Module TCP/IP Transmission Control Protocol/ Internet Protocol UART Universal asynchronous receiver-transmitter USIM Universal Subscriber Identity Module UMTS Universal Mobile Telecommunications System USB Universal Serial Bus WCDMA Wi
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MeiG_SLM320_Hardware Design Manual VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value MeiG Smart Technology Co.
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MeiG_SLM320_Hardware Design Manual 10 Appendix B GPRS Coding Scheme Table 32 Description of different encoding schemes Way CS-1 CS-2 CS-3 CS-4 Code rate 1/2 2/3 3/4 1 USF 3 3 3 3 Pre-coded USF 3 6 6 12 Radio Block excl.USF and BCS 181 268 312 428 BCS 40 16 16 16 Tail 4 4 4 - Coded Bits 456 588 676 456 Punctured Bits 0 132 220 - Data rate Kb/s 9.05 13.4 15.6 21.4 FCC Caution. § 15.19 Labelling requirements.
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C.Appendix A A1.Requirement of FCC KDB 996369 D03 for module certification: 1.1List of applicable FCC rules: The module complies with FCC Part 2,22,24,27 1.2Summarize the specific operational use conditions: SLM320 use the independent GPS chip，includes a fully integrated global navigation satellite system solution that supports GPS, GLONASS, BeiDou. It supports standard NMEA-0183 protocol. 1.
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This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated withmini mum distance 20cm between the radiator & your body The host product Labeling Requirements: NOTICE: The host product must make sure that FCC labeling requirements are met. This includes clearly visible exterior label on the outside of the final product housing that displays the contents shown in below: Contains FCC ID:2APJ4-SLM320-L 1.