Quectel BG950A-GL, Руководство пользователя

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LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design 6 / 84
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