Product Info

LPWA Module Series
BG95 Series Hardware Design
BG95_Series_Hardware_Design 4 / 106
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 4
Table Index ................................................................................................................................................... 6
Figure Index ................................................................................................................................................. 8
1 Introduction ........................................................................................................................................ 10
1.1. Safety Information ..................................................................................................................... 12
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
3.15. Behaviors of MAIN_RI .............................................................................................................. 55
3.16. USB_BOOT Interface ............................................................................................................... 56