LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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Contents
Safety Information......................................................................................................................................................3
About the Document..................................................................................................................................................4
Contents........................................................................................................................................................................6
Table Index................................................................................................................................................................... 8
Figure Index............................................................................................................................................................... 10
1 Introduction....................................................................................................................................................... 11
1.1. Special Mark..........................................................................................................................................11
2 Product Overview.............................................................................................................................................12
2.1. Frequency Bands and Functions.......................................................................................................13
2.2. Key Features.........................................................................................................................................13
2.3. Functional Diagram..............................................................................................................................15
2.4. Pin Assignment..................................................................................................................................... 18
2.5. Pin Description......................................................................................................................................19
2.6. EVB.........................................................................................................................................................25
3 Operating Characteristics..............................................................................................................................26
3.1. Operating Modes..................................................................................................................................26
3.2. Airplane Mode.......................................................................................................................................27
3.3. Power Saving Mode (PSM)................................................................................................................ 27
3.4. Extended Idle Mode DRX (e-I-DRX).................................................................................................28
3.5. Sleep Mode........................................................................................................................................... 29
3.5.1. UART Application Scenario...................................................................................................... 29
3.6. Recovery Mode.....................................................................................................................................30
3.7. Power Supply........................................................................................................................................31
3.7.1. Power Supply Pins.....................................................................................................................31
3.7.2. Voltage Stability Requirements................................................................................................31
3.7.3. Power Supply Monitoring..........................................................................................................33
3.8. Turn On.................................................................................................................................................. 33
3.8.1. Turn on the Module with PWRKEY......................................................................................... 33
3.9. Turn Off.................................................................................................................................................. 35
3.9.1. Turn off with PWRKEY and PON_TRIG.................................................................................35
3.9.2. Turn off the Module with AT Command and PON_TRIG.....................................................35
3.10. Reset...................................................................................................................................................... 36
3.11. PON_TRIG............................................................................................................................................ 38
4 Application Interfaces.....................................................................................................................................40
4.1. (U)SIM Interface................................................................................................................................... 40
4.2. USB Interface*...................................................................................................................................... 42
4.3. UART Interfaces................................................................................................................................... 44
4.4. PCM and I2C Interfaces*.................................................................................................................... 47
4.5. ADC Interfaces......................................................................................................................................48