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MeiG_SLM320_Hardware Design Manual

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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. If there is a large voltage difference
between the input and output voltages, DCDC is recommended as the power supply for the module.

The figure below is the reference design of + 5V power supply circuit. The LDO of MICREL Company is
used in the design, and the model is MIC29302WU. The load current is 3.9V and the output voltage is
3.3A.Note that MIC29302WU

has the requirement of minimum load current ≥ 10mA.

Figure 5 Reference design for power supply input

3.4.4 VDD_EXT voltage output

When the SLM320 module is normally powered on, there is a voltage output on Pin9_VDD_EXT, the
output voltage is 1.8V, and the current load is 50mA. This output voltage can be used as an external
pull-up source, such as a level reference, and the Pin status can be read to determine whether the
module is switched on or not.

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Summary of Contents for SLM 320

Page 1: ...MeiG_SLM320_Hardware Design Manual 3KO 923 GXJ GXK KYOMT 3GT GR Controlled Version Number V1 2 Release date 2021 06 18 ...

Page 2: ...sumes no responsibility for the merchantability and fitness for a particular purpose or any indirect extraordinary or consequential losses Confidentiality Claim The information contained in this document including any annexes is confidential The recipient understands that the document obtained by him is confidential and shall not be used for any purpose other than the stated purpose and he shall n...

Page 3: ...t Technology Co Ltd 2 89 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 information and added RF performance for B2 B4 ...

Page 4: ...ower Supply Reference Circuit 24 3 4 4 VDD_EXT voltage output 24 3 5 Start up 25 3 5 1 PWRKEY Pin boot 25 3 5 2 Power off 26 3 6 Reset Function 26 3 6 1 Hardware Reset 26 3 6 2 AT command Reset 27 3 7 USIM SIM Interface 28 3 8 USB port 30 3 8 1 USB Pin Description 30 3 8 2 USB Reference Circuit 30 3 9 Serial Port 31 3 10 Status indication 33 3 11 Low Power Mode 35 3 11 1 Flight mode 35 3 11 2 Slee...

Page 5: ...ient Temperature Range 46 6 3 Electrical Characteristics of Interface Working State 46 6 4 Module Power Consumption Range 47 6 5 Environmental reliability requirements 78 6 6 ESD character 78 7 Mechanical characteristics 80 7 1 Module Mechanical Dimensions 80 7 2 Recommended Footprint 81 7 3 Top View of Module 82 7 4 Bottom View of Module 82 8 Storage and production 83 8 1 Storage 83 8 2 Reflow Pr...

Page 6: ... help of this document combined with our application manual and user instructions customers can quickly apply SLM320 module to wireless IoT applications SLM320 Wireless module is a wide band wireless terminal product applicable to TDD LTE FDD LTE GSM a variety of network standards SLM320 Supports access rate TDD LTE 8Mbps 2Mbps FDD LTE 10Mbps 5Mbps GPRS 85 6kbps 85 6kbps SLM320 not only provides w...

Page 7: ...ware that there are mobile terminal devices that may need to be turned off because limited RF interference will cause medical devices to malfunction The mobile terminal device will not be able to connect effectively under all circumstances If the mobile device has no phone charge or the SIM is invalid please remember to make an emergency call when you encounter the above situations in an emergency...

Page 8: ...a single sided layout and the module structure size is 32 0 29 0 2 4mm SLM320 can be widely used in field of M2M for example OBD CPE routers DTU security and industrial grade PDA etc 2 2 Key Features The following table describes the detailed features of SLM320 module Table 2 Key features of SLM320 module Features Details Power supply VBAT Supply voltage range 3 4V 4 5V Typical supply voltage 3 8V...

Page 9: ...ty 160dBm Acquisition sensitivity 147dBm Position accuracy 3m GNSS Data type NMEA 0183 USIM Port Support USIM SIM 1 8Vand3V Audio Features Support 1 channel digital audio interface PCM port Support analog MIC signal input interface all the way Support one loudspeaker signal output interface 0 8W 4 2V D 0 6W 4 2V AB PCM Interface For audio use external CODEC chip is required USB Interface Support U...

Page 10: ...ds Environment Humidity 5 95 ESD GND 8 KV air discharge the contact discharge plus or minus 4 KV Antenna interface air discharge 8KV contact discharge 4KV Package 144 Pin LGA LCC port LCC Functional Interface Power interface USB2 0 High Speed port UART interface USIM SIM port support 3V 1 8V PCM interface MIC input interface Speaker output interface Hardware reset interface Indicator interface Key...

Page 11: ...art Technology Co Ltd 10 89 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 Functional block diagram ...

Page 12: ... 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 ...

Page 13: ... 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 8V PCM port MIC input interface The speaker output interface Hardware reset interface Pilot light interface Keyboard interface Sleep control interface Flight mode control interface ADC port I2C port SPI port SD port USB_BOOT port ...

Page 14: ... Manual MeiG Smart Technology Co Ltd 13 89 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 ...

Page 15: ...leaky output PI power input PO power output Table 4 Pin Description Pin number Pin name I O Electrical level Description Remark 1 WAKEUP_IN I O VILnom 0V VIHnom 1 8V External device wake up module If not please suspend this pin GPIO29 2 AP_READY I O VILnom 0V VIHnom 1 8V The module checks whether the host is sleeping If not please suspend this pin GPIO30 3 SLEEP_IND I O VOLnom 0V VOHnom 1 8V Syste...

Page 16: ...1 DBG_RXD I VILnom 0V VIHnom 1 8V Debug serial port receiving If not please suspend this pin 12 DBG_TXD O VOLnom 0V VOHnom 1 8V Debug serial port sending If not please suspend this pin 13 USIM_PRESEN CE I VILnom 0V VIHnom 1 8V USIM card hot swap detection If not please suspend this pin Software shutdown detection function 14 USIM_VDD PO 1 8V 3 0V USIM power supply 15 USIM_DATA I O 1 8V 3 0V USIM d...

Page 17: ...t please suspend this pin 26 PCM_SYNC I2S _SYNC I O 0V 1 8V PCM data synchronization signal If not please suspend this pin 27 PCM_CLK I2S_ CLK I O 0V 1 8V PCM clock signal If not please suspend this pin 28 SDC2_DATA_3 I O 1 8V 3 0V SDC2_DATA_3 If not please suspend this pin 29 SDC2_DATA_2 I O 1 8V 3 0V SDC2_DATA_2 If not please suspend this pin 30 SDC2_DATA_1 I O 1 8V 3 0V SDC2_DATA_1 If not pleas...

Page 18: ...spend this pin 40 SPI_CLK O VOLnom 0V VOHnom 1 8V SPI_CLK If not please suspend this pin 41 I2C_SCL OD VOLnom 0V VOHnom 1 8V I2C interface clock signal If not please suspend this pin 42 I2C_SDA BOT 0V 1 8V I2C interface data signal If not please suspend this pin 43 ADC2 AI ADC interface 2 When in use 1K in series If not please suspend this pin 44 ADC1 AI ADC interface 1 When in use 1K in series If...

Page 19: ... Vbat 61 STATUS O VOLnom 0V VOHnom 1 8V Reserved status indication interface If not please suspend this pin 62 RI O VOLnom 0V VOHnom 1 8V Module output ringing prompt If not please suspend this pin GPIO22 63 UART2_TXD O VOLnom 0V VOHnom 1 8V Module sends data If not please suspend this pin UART2_TXD 64 CTS O VOLnom 0V VOHnom 1 8V Module clear send UART1_CTS 65 RTS O VOLnom 0V VOHnom 1 8V Module re...

Page 20: ...e suspend this pin 76 RESERVED 77 SPK_N O SPK_N If not please suspend this pin 78 KEYIN1 I VILnom 0V VIHnom 1 8V Keyboard matrix input signal If not please suspend this pin 79 KEYIN2 I VILnom 0V VIHnom 1 8V Keyboard matrix input signal If not please suspend this pin 80 KEYIN3 I VILnom 0V VIHnom 1 8V Keyboard matrix input signal If not please suspend this pin 81 KEYIN4 I VILnom 0V VIHnom 1 8V Keybo...

Page 21: ...gency download mode It can be reused as keyin0 116 NC ZSP_UART_ TXD Reserved pin default NC The module is internally connected with ZSP_ UART_ TXD 117 CLK26M_OUT O CLK26M_OUT If not please suspend this pin 118 NC PSM_EXT_I NT NC The module is internally connected with PSM_ EXT_ Int default NC 119 LCD_FMARK O 1 8V 3 0V LCD_FMARK If not please suspend this pin 120 LCD_RSTB O 1 8V 3 0V LCD_RSTB If no...

Page 22: ...spend this pin 131 SD1_DATA1 I O 1 8V 3 0V SD1_DATA1 If not please suspend this pin 132 SD1_DATA0 I O 1 8V 3 0V SD1_DATA0 If not please suspend this pin 133 SD1_CLK O 1 8V 3 0V SD1_CLK If not please suspend this pin 134 SD1_CMD O 1 8V 3 0V SD1_CMD If not please suspend this pin 135 RESERVED RESERVED 136 SYS_STATE I Reserve data pin of camera If not used suspend this pin 137 UART3_RXD I VILnom 0V V...

Page 23: ...to rfctl 4 Remark 1 Is a function under development 2 The above interface functions are not supported at the same time some pins are reusable functions please pay attention when selecting 3 See the documentation for SLM320 pin multiplexing SLM320_GPIO unction multiplex 3 4 Power source Table 5 Description of SLM320 module power interface Pin Name I O Pin Description VBAT_RF PI 57 58 Module power s...

Page 24: ...e sure that the input voltage will never drop below 3 3V Figure 4 shows the voltage drop during burst transmission under 2G network VBAT Min 3 3V Drop Ripple Figure 4 Burst transmission power requirements To reduce voltage drop a 100uF filter capacitor with low ESR is required MLCC has the best ESR It is recommended to add 3 ceramic capacitors 100nF 33pF 10pF to VBAT_BB and VBAT_RF pins and the ca...

Page 25: ... output voltages DCDC is recommended as the power supply for the module The figure below is the reference design of 5V power supply circuit The LDO of MICREL Company is used in the design and the model is MIC29302WU The load current is 3 9V and the output voltage is 3 3A Note that MIC29302WU has the requirement of minimum load current 10mA Figure 5 Reference design for power supply input 3 4 4 VDD...

Page 26: ...lowing 47K 4 7K 500ms Turn on pulse PWRKEY Figure 6 Open set drive reference boot circuit Another way to control the PWRKEY pin is through a push button switch A TVS is placed near the button for ESD protection The reference circuit is shown as below Close to S1 TVS PWRKEY S1 Figure 7 Button startup reference circuit The boot sequence is shown in the figure below VIL 0 3V VH 1 6V VBAT PWRKEY 500ms...

Page 27: ...ocess of logout from the base station Hardware shutdown Pull down PWRKEY greater than 3 1s and release Normal_shutdown ATshutdown AT CPOF Soft power off Remark 1 When the module is working normally do not immediately cut off the power supply of the module to avoid damaging the flash data inside the module It is strongly recommended to power off the module through the AT command before disconnectin...

Page 28: ...circuit or a button RESET_N 4 7K 47K Reset pulse Figure 9 RESET_N reset the open set reference circuit TVS RESET_N S2 Close to S2 Figure 10 RESET_N reset button reference circuit The reset sequence diagram is as follows VBAT RESET_N 150ms VIL 0 3V VIH 1 6V Figure 11 RESET_N reset sequence diagram 3 6 2 AT command Reset Through SLM320 UART or USB AT port enter AT TRB command make SLM320 reset and r...

Page 29: ... table Table 8 description of hot swap function setting of SIM card AT Command SIM card hot swap detection Function declaration AT SIMHOTSWAP 1 Open By default the SIM card hot plug detection function is on and the module detects whether the SIM card is inserted through the USIM_PRESENCE pin status AT SIMHOTSWAP 0 Close The SIM card hot plug detection function is turned off The SIM card will be re...

Page 30: ...g design principles are recommended in the circuit design For SIM0_DAT SIM0_CLK and SIM0_RST lines a 22 Ω resistance used to suppress the spurious EMI enhance ESD protection and convenient debugging In order to improve the antistatic ability TVS are added on USIM_VDD USIM_DATA USIM_CLK and USIM_RST lines ESD protection devices with parasitic capacitance no more than 15Pf 33pF capacitors in paralle...

Page 31: ...O 69 USB Differential data USB_DM I O 70 USB Differential data GND G 8 9 19 22 36 46 48 50 54 56 85 112 GND 3 8 2 USB Reference Circuit The SLM320 module USB interface application reference circuit is shown in the figure below Module USB_DM USB_DP USB_VBUS GND MCU R1 R2 R5 0R 0R 0R ESD Array USB_DM USB_DP USB_VBUS GND R3 R4 Test Points 0R 0R NM NM Figure 14 Refer to the design of the USB interface...

Page 32: ...on of the USB need to do to USB_DP and USB_DM 90 Ω impedance control strictly in accordance with the requirements of the differential line as far as possible away from the interference signal Do not use USB cable under crystal oscillator oscillator magnetic device and RF signal It is recommended to use inner differential wiring and wrap the ground left right up and down 3 9 Serial Port SLM320 modu...

Page 33: ... 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 TI s TXB0104PWR is recommended The following picture is a reference design VCCB B1 GND B2 B4 B3 B6 B7 B5 B8 VCCA A1 OE A2 A4 A3 A6 A7 A5 A8 Translator 0 1uF 0 1uF VDD_EXT VDD_MCU RI_MCU DCD_MCU CTS_MCU RTS_MCU DTR_MCU TX...

Page 34: ...mmended to reserve 0R resistance and parallel capacitor positions on the main serial port and debug serial port circuit which can be added to the baseplate to prevent RF interference 3 10 Status indication The status indicator pin is mainly used to drive the network status indicator SLM320 module has net_ MODE NET_ Status and status reserved default NC are three network status pins The following t...

Page 35: ...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 network indication Status is used to indicate the working status of the module which is an open drain output pin The customer can connect thi...

Page 36: ...ular flight mode control SLM320 module supports two ways to enter flight mode Table 16 Description of flight mode Settings 1 Hardware I O interface button control W_DISABLE for high or hovering default is pull up is normal mode and low is flight mode 2 AT command control AT CFUN 4 go into airplane mode AT CFUN 1 go into normal mode 3 11 2 Sleep mode The module can activate sleep mode in the follow...

Page 37: ...r power test AT TRACECTRL 0 0 AT TRACECTRL 1 0 AT CSCLK 2 3 12 ADC Function SLM320 provides a Two way 12 bit analog digital conversion interface and the ADC voltage range is 0 5V Table 17 ADC pin description Pin Name I O Pin Description ADC0 I 45 Analog to digital converter interface 0 ADC1 I 44 Analog to digital converter interface 1 ADC2 I 43 Analog to digital converter interface 2 Remark 1 In t...

Page 38: ...T 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 Description USB_BOOT I 115 Short connect USB_BOOT and VDD_EXT V_IO18 before starting the module and then the module will enter the forced download mode VDD_EXT PO 7 ...

Page 39: ...ollowing layout guidelines should be taken into account in customers designs Maximize the distance among GNSS antenna main antenna Digital circuits such as U SIM card USB interface and camera module and display connector should be kept away from the antennas Use ground vias around the GNSS trace and sensitive analog signal traces to provide coplanar isolation and protection Keep 50Ω characteristic...

Page 40: ...antennas It is recommended that applications carefully select RF wiring RF wiring needs to be selected with minimal loss RF wiring for RF loss requirements is recommended as follows GSM900 0 6dB DCS1800 1 0dB TDD LTE 1 2dB FDD LTE 1 2dB WIFI BT 1 2dB GNSS 1 0dB 5 2 Radio frequency reference circuit The reference circuit for antenna connection of ANT_MAIN ANT_WIFI BT is shown in the figure below In...

Page 41: ...erence circuit 5 3 Installation of antenna 5 3 1 Antenna requirements The requirements of antenna receiving antenna are shown in the following table Table 20 Antenna requirements Type Requirement GSM TDD LTE FDD LTE VSWR 2 Gain dBi 1 Maximum Inupt W 2W Input impedance ohm 50 Polarization Type vertical direction Cable insertion loss 1 5dB GSM900 1800 LTE B1 B2 B3 B4 B5 B8 B34 B39 Cable insertion lo...

Page 42: ...tion 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 Table 21 SLM320 RF transmission power Frequency Max Min EGSM900 33dBm 2dB 5dBm 5dB DCS1800 30dBm 2dB 0dBm 5dB LTE FDD B1 23dBm 2 7dB 39dBm LTE FDD B2 23dBm 2 7dB 39dBm LTE FDD B3 23dBm 2 7dB 39dBm LTE FDD B4 23dBm 2 7dB 39dBm LTE FDD B5 23dBm 2 7dB 39dBm LTE FDD B7 23dB...

Page 43: ...typical value BW 10M Dominant set Diversity Dominant Diversity 3GPP Dominant Diversity EGSM900 108dBm NA NA 102 4dBm DCS1800 108dBm NA NA 102 4dBm LTE FDD B1 97dBm NA NA 96 3dBm LTE FDD B2 97dBm NA NA 94 3dBm LTE FDD B3 97dBm NA NA 93 3dBm LTE FDD B4 97dBm NA NA 96 3dBm LTE FDD B5 98dBm NA NA 94 3dBm LTE FDD B7 97dBm NA NA 94 3dBm LTE FDD B8 98dBm NA NA 93 3dBm LTE FDD B20 98dBm NA NA 93 3dBm LTE ...

Page 44: ... 960 MHz DCS1800 1710 1785 1805 1880 MHz LTE FDD B1 1920 1980 2110 2170 MHz LTE FDD B2 1850 1910 1930 1990 MHz LTE FDD B3 1710 1785 1805 1880 MHz LTE FDD B4 1710 1755 2110 2155 MHz LTE FDD B5 824 849 869 894 MHz LTE FDD B7 2500 2570 2620 2690 MHz LTE FDD B8 880 915 925 960 MHz LTE FDD B20 832 862 791 821 MHz LTE FDD B28 703 748 758 803 MHz LTE TDD B34 2010 2025 2010 2025 MHz LTE TDD B38 2570 2620 ...

Page 45: ...MeiG_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 44 89 WIFI BT 2400 2483 2400 2483 MHZ GPS 1575 42 1 MHZ BDS 1559 1563 MHZ Glonass 1597 1606 MHZ ...

Page 46: ... TRP dBm TIS dBm Peak Avg GSM 850 900 2 5 1 0dBi 4dBi 40 1 6W Kg 26 102 1800 DCS 26 102 1900 PCS 26 102 TDD LTE Band34 19 94 Band38 19 94 Band39 19 94 Band40 19 94 Band41 19 94 FDD LTE Band1 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 WIFI 2400 2 5 1 0dBi 4dBi 40 1 6W Kg 80 BT 2400 2 5 1 0dBi 4dBi 40 1 6W Kg 3 82 ...

Page 47: ...he SLM320 module is recommended to operate at 30 75 It is suggested that temperature control measures should be considered at the application end under adverse environmental conditions At the same time the extended operating temperature range of the module is provided When used at the extended temperature the function is normal and some RF indicators may deteriorate It is also recommended that the...

Page 48: ...e actual network standby use AT command to query and register the network and record the 10 minute average current 1 65 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 1 75 GSM850 Module is powered on With no data transfer the USB is in a suspended state GSM850 CH190 1 The tested module was powered on ...

Page 49: ...e 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 1 4 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 dat...

Page 50: ...d module maintained for 10 minutes and recorded the average current for 10 minutes 1 4 DCS CH885 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 ...

Page 51: ...ith no data transfer the USB is in a suspended state Band1 CH18300 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 1 5 Band1 CH18050 1 The tested...

Page 52: ...rough 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 1 2 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...

Page 53: ...module maintained for 10 minutes and recorded the average current for 10 minutes 1 2 Band4 CH20000 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 minute...

Page 54: ...ted 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 1 5 Band5 CH20600 1 The tested module was powered on and the data network was successfully registered 2 Se...

Page 55: ... transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 4 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 Band40 CH39150 1 The tested module was powered on and the data network was successfully registered 2 Set the module to sleep state thro...

Page 56: ...corded the average current for 10 minutes 1 5 Band41 CH40290 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 1 5 Band41 CH41190 1 The tested modu...

Page 57: ...no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 37 86 Band2 CH19150 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 38 86 Band3 CH19575 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the averag...

Page 58: ...of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 37 46 Band8 CH21750 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 39 3 Band8 CH21625 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the aver...

Page 59: ...or 10 minutes and recorded the average current for 10 minutes 37 49 Band41 CH41190 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 38 26 Real network data sleep Unicom Mobile Keep the data connection sending 256 byte packets back to the server every 5 minutes Data transmission FDD 1 Room temperature 2 Dc power ...

Page 60: ...s out data transmission and maintains for 5 minutes and records the average current for 5 minutes 680 21 Band2 23dBm CH18900 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 675 64 Band2 23dBm CH19150 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 674 ...

Page 61: ...es 256 21 Band4 23dBm CH20000 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 650 21 Band4 23dBm CH20175 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 649 60 Band4 23dBm CH20350 The tested module carries out data transmission and maintains for 5 minu...

Page 62: ...mission and maintains for 5 minutes and records the average current for 5 minutes 210 1 Band7 23dBm CH20800 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 690 Band7 23dBm CH21100 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 700 Band7 23dBm CH21400 ...

Page 63: ... minutes 175 4 Band20 10dBm The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 215 6 Band20 23dBm CH24200 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 567 8 Band20 23dBm CH24300 The tested module carries out data transmission and maintains for 5 minute...

Page 64: ...inutes 158 2 Band41 10dBm The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 187 4 Band41 23dBm CH40620 The tested module carries out data transmission and maintains for 5 minutes and records the average current for 5 minutes 388 3 Band41 23dBm CH40290 The tested module carries out data transmission and maintains for 5 minutes ...

Page 65: ...for 10 minutes 1 6 GSM850 CH128 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 1 6 GSM850 CH251 1 The tested module was powered on and the data ...

Page 66: ...condition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 4 DCS 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 a...

Page 67: ... 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 1 6 PCS CH810 1 The tested module was powered on and the data network was successfully registered 2 Se...

Page 68: ...ata 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 1 6 Band2 CH18650 1 The tested module was powered on and the data network was successfully registered 2 Set the module to sleep state through...

Page 69: ...dition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 3 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 ...

Page 70: ...t for 10 minutes 1 2 Band4 CH20350 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 1 2 Band5 CH20450 1 The tested module was powered on and the d...

Page 71: ...ed 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 1 2 Band4 CH20350 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 s...

Page 72: ...dition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 2 Band5 CH20450 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 ...

Page 73: ...t for 10 minutes 1 4 Band7 CH20800 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 1 2 Band7 CH21100 1 The tested module was powered on and the d...

Page 74: ...d 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 1 2 Band8 CH21750 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 st...

Page 75: ...dition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 4 Band28 CH27260 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...

Page 76: ...e maintained for 10 minutes and recorded the average current for 10 minutes 1 2 Band38 CH38000 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 1 ...

Page 77: ...ed 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 1 3 Band40 CH38700 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 ...

Page 78: ...ended state 3 Under the condition of no data transmission the tested module maintained for 10 minutes and recorded the average current for 10 minutes 1 3 Band41 CH40640 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 ma...

Page 79: ...D and large area under the call state ESD meets the following requirements ʒContact discharge shall pass 4KV 5KV test grades ʓThe air discharge shall pass 8KV 10KV test grades 2 Under the shutdown state THE EVB SIM card holder is tested ESD meets the following requirements ʒContact discharge shall pass 4KV test grade ʓAir discharge shall pass 8KV test grade 3 Other interfaces of the module ESD mee...

Page 80: ...MeiG_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 79 89 GND 4 KV GND Antenna interface 4 KV Antenna interface ...

Page 81: ...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 ...

Page 82: ...MeiG_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 81 89 b Bottom view size Figure 21 bottom view dimension unit mm 7 2 Recommended Footprint Figure 22 Recommended package top view unit mm ...

Page 83: ...MeiG_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 82 89 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 ...

Page 84: ...ower than 30 the air humidity is less than 60 and the factory finishes the SMT within 72 hours 3 If the module is under the following conditions it needs to be baked before SMT When the ambient temperature is 23 5 fluctuation is allowed humidity level greater than 10 When the vacuum seal bag is opened the ambient temperature of the module is lower than 30 C and the air humidity is less than 60 How...

Page 85: ...MeiG_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 84 89 8 3 Packaging SLM320 adopts tray packaging shown as below Figure 26 SLM320 in tray packaging ...

Page 86: ...e business process manual 9 2 Symbol Key Table 31 Term abbreviations Abbreviation English description AMR Adaptive Multi rate BER Bit Error Rate BTS Base Transceiver Station PCI Peripheral Component Interconnect CS Circuit Switched CS domain CSD Circuit Switched Data DCE Data communication equipment DTE Data terminal equipment DTR Data Terminal Ready EDGE Enhanced Data rates for GSM Evolution EFR ...

Page 87: ... 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 MEID Mobile Equipment Identifier I O Input Output ISO International Standards Organization ITU International Telecommunications Union bps bits per second LED Light Emitting Diode M2M Machine to machine MO ...

Page 88: ...scriber Identity Module UMTS Universal Mobile Telecommunications System USB Universal Serial Bus WCDMA Wideband Code Division Multiple Access TD SCDMA Time Division Synchronous Code Division Multiple Access TDD LTE Time Division Long Term Evolution FDD LTE Frequency Division Duplexing Long Term Evolution Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximu...

Page 89: ...G_SLM320_Hardware Design Manual MeiG Smart Technology Co Ltd 88 89 VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value ...

Page 90: ...mits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this ...

Page 91: ... 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 1 6Antennas The module does not have a standard antenna 1 7Label and compliance information This device complies with part 15 of the FCC Rules Operation is subject to the condition that this device does not cause harmful inte...

Page 92: ...ing requirements When setting up the configuration if the pairing and call box options for testing do not work the tester needs to coordinate with the module manufacturer to access the test mode software 1 9Additional testing Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for the specific rule parts FCC Part 2 22 24 27 list on the grant and that the host product manufa...

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