Product Info
LPWA Module Series
BG95 Series Hardware Design
BG95_Series_Hardware_Design 4 / 106
Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 4
Table Index ............................................................................................................................................... 7
Figure Index .............................................................................................................................................. 9
1 Introduction ..................................................................................................................................... 11
1.1. Safety Information .................................................................................................................. 11
2 Product Concept ............................................................................................................................. 13
2.1. General Description ................................................................................................................ 13
2.2. Key Features .......................................................................................................................... 16
2.3. Functional Diagram ................................................................................................................ 18
2.4. Evaluation Board .................................................................................................................... 22
3 Application Interfaces ..................................................................................................................... 23
3.1. Pin Assignment ...................................................................................................................... 23
3.2. Pin Description ....................................................................................................................... 25
3.3. Operating Modes .................................................................................................................... 33
3.4. Power Saving ......................................................................................................................... 34
3.4.1. Airplane Mode .............................................................................................................. 34
3.4.2. Power Saving Mode (PSM).......................................................................................... 35
3.4.3. Extended Idle Mode DRX (e-I-DRX) ............................................................................ 36
3.4.4. Sleep Mode.................................................................................................................. 36
3.4.4.1. UART Application .............................................................................................. 36
3.5. Power Supply ......................................................................................................................... 37
3.5.1. Power Supply Pins ....................................................................................................... 37
3.5.2. Decrease Voltage Drop ............................................................................................... 38
3.5.3. Monitor the Power Supply ............................................................................................ 40
3.6. Turn on and off Scenarios ...................................................................................................... 40
3.6.1. Turn on Module Using the PWRKEY Pin ..................................................................... 40
3.6.2. Turn off Module ............................................................................................................ 42
3.6.2.1. Turn off Module through PWRKEY .................................................................... 42
3.6.2.2. Turn off Module through AT Command ............................................................. 42
3.7. Reset the Module ................................................................................................................... 43
3.8. PON_TRIG Interface .............................................................................................................. 44
3.9. (U)SIM Interface ..................................................................................................................... 45
3.10. USB Interface ......................................................................................................................... 47
3.11.
UART Interfaces ..................................................................................................................... 49
3.12. PCM and I2C Interfaces* ........................................................................................................ 52
3.13. Network Status Indication ....................................................................................................... 53
3.14. STATUS ................................................................................................................................. 54