Yuga CLM920 TE3 LTE Module hardware usage guide V1.4

CLM920_TE3 hardware user guide Version 1.2
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List
1 Introduction ................................................................................................................................... 4
2 Product summary .......................................................................................................................... 5
2.1 Product brief ................................................................................................................... 5
2.2 Module characteristics .................................................................................................... 5
2.3 Module function.............................................................................................................. 7
3 Interface description .................................................................................................................. 8
3.1 Description ...................................................................................................................... 8
3.2 Module interface ......................................................................................................... 9
3.2.1 I/O definition ........................................................................................................ 9
3.2.2 PIN allocation ..................................................................................................... 12
3.3 Power Supply ............................................................................................................. 12
3.3.1 interface introduction ........................................................................................ 12
3.3.2 Power Supply design .......................................................................................... 13
3.4 Power ON/OFF .............................................................................................................. 13
3.5 Reset .............................................................................................................................. 15
3.6 USB Interface ................................................................................................................. 16
3.7 UART Interface .............................................................................................................. 17
3.8 USIM Interface .............................................................................................................. 19
3.8.1 USIM Reference circuit ....................................................................................... 19
3.8.2 USIM_DET hot swap design ............................................................................... 20
3.9 Airplane mode Interface ............................................................................................... 20
3.10 PCM and I2C Interface： ............................................................................................ 21
3.11 SD Card ........................................................................................................................ 22
3.12 SPI Interface ................................................................................................................ 23
3.13 GPIO Interface ............................................................................................................. 23
3.14 Network status LEDs ................................................................................................... 24
3.15 ADC Function ............................................................................................................... 24
4 Overall technical index ............................................................................................................. 25
4.1 Overview of this chapter ............................................................................................... 25
4.2 working frequency ........................................................................................................ 25
4.3 Conduction radio frequency measurement .................................................................. 26
4.3.1 testing environment ........................................................................................... 26
4.3.2 Test standard ...................................................................................................... 26
4.4 Sensitivity and transmitting power. .............................................................................. 26
4.5 Antenna Requirements ................................................................................................. 27
4.6 Power consumption characteristics .............................................................................. 27
5 Antenna Interface..................................................................................................................... 28
5.1 Main Antenna ................................................................................................................ 28
5.2 Diversity Antenna interface ........................................................................................... 29
5.3 GNSS Antenna ............................................................................................................... 29
5.4 Antenna connector .................................................................................................... 30