Quectel LPWA Series, Hardware Design

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LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design 5 /89
Contents
Safety Information ...................................................................................................................................................... 3
About the Document .................................................................................................................................................. 4
Contents ........................................................................................................................................................................ 5
Table Index ................................................................................................................................................................... 7
Figure Index ................................................................................................................................................................. 9
1 Introduction ....................................................................................................................................................... 10
1.1. Special Mark .......................................................................................................................................... 13
2 Product Overview ............................................................................................................................................. 14
2.1. Frequency Bands and Functions ....................................................................................................... 15
2.2. Key Features ......................................................................................................................................... 16
2.3. Functional Diagram .............................................................................................................................. 18
2.4. Pin Assignment ..................................................................................................................................... 19
2.5. Pin Description ...................................................................................................................................... 20
2.6. Evaluation Board .................................................................................................................................. 26
3 Operating Characteristics .............................................................................................................................. 27
3.1. Operating Modes .................................................................................................................................. 27
3.2. Sleep Mode* .......................................................................................................................................... 28
3.2.1. UART Application Scenario ...................................................................................................... 28
3.3. Power Saving Mode (PSM)* ............................................................................................................... 29
3.4. Extended Idle Mode DRX (e-I-DRX) ................................................................................................. 29
3.5. Airplane Mode ....................................................................................................................................... 30
3.6. Power Supply ........................................................................................................................................ 31
3.6.1. Power Supply Pins ..................................................................................................................... 31
3.6.2. Power Supply Monitoring .......................................................................................................... 31
3.6.3. Requirements for Voltage Stability .......................................................................................... 31
3.7. Turn On .................................................................................................................................................. 33
3.7.1. Turn on the Module with PWRKEY* ....................................................................................... 33
3.8. Turn Off .................................................................................................................................................. 34
3.8.1. Turn off the Module with PWRKEY* ........................................................................................ 34
3.8.2. Turn off the Module with AT Command .................................................................................. 35
3.9. Reset ...................................................................................................................................................... 35
3.10. PON_TRIG* ........................................................................................................................................... 37
4 Application Interfaces ..................................................................................................................................... 39
4.1. (U)SIM Interface ................................................................................................................................... 39
4.2. USB Interface* ...................................................................................................................................... 41
4.3. PCM and I2C Interfaces* .................................................................................................................... 43
4.4. UART Interfaces ................................................................................................................................... 44
4.5. ADC Interface ........................................................................................................................................ 46
4.6. Indication Signal ................................................................................................................................... 47