Product Info
LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 3 / 88
Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 3
Table Index ............................................................................................................................................... 6
Figure Index .............................................................................................................................................. 8
1 Introduction ....................................................................................................................................... 9
1.1. Safety Information .................................................................................................................. 10
1.2. FCC Certification Requirements. ............................................................................................ 11
1.3. IC Statement .......................................................................................................................... 13
2 Product Concept ............................................................................................................................. 15
2.1. General Description ................................................................................................................ 15
2.2. Key Features .......................................................................................................................... 17
2.3. Functional Diagram ................................................................................................................ 20
2.4. Evaluation Board .................................................................................................................... 21
3 Application Interfaces ..................................................................................................................... 22
3.1. Pin Assignment ...................................................................................................................... 23
3.2. Pin Description ....................................................................................................................... 24
3.3. Operating Modes .................................................................................................................... 32
3.4. Power Saving ..................................................................................................................
....... 33
3.4.1. Airplane Mode .............................................................................................................. 33
3.4.2. Power Saving Mode (PSM).......................................................................................... 34
3.4.3. Extended Idle Mode DRX (e-I-DRX) ............................................................................ 34
3.4.4. Sleep Mode.................................................................................................................. 35
3.4.4.1. UART Application .............................................................................................. 35
3.5. Power Supply ......................................................................................................................... 36
3.5.1. Power Supply Pins ....................................................................................................... 36
3.5.2. Decrease Voltage Drop ............................................................................................... 37
3.5.3. Monitor the Power Supply ............................................................................................ 38
3.6. Turn on and off Scenarios ...................................................................................................... 38
3.6.1. Turn on Module Using the PWRKEY Pin ..................................................................... 38
3.6.2. Turn off Module ............................................................................................................ 40
3.6.2.1. Turn off Module through PWRKEY .................................................................... 41
3.6.2.2. Turn off Module through AT Command ............................................................. 41
3.7. Reset the Module ................................................................................................................... 41
3.8. PON_TRIG Interface .............................................................................................................. 43
3.9. (U)SIM Interface ..............................................................................................................
....... 44
3.10. USB Interface ......................................................................................................................... 46
3.11. UART Interfaces ..................................................................................................................... 48
3.12. PCM and I2C Interfaces* ........................................................................................................ 51