LPWA Module Series
BG95 Hardware Design
BG95_Hardware_Design 4 / 80
3.17.
GPIO Interfaces ...................................................................................................................... 52
4
GNSS Receiver ................................................................................................................................ 54
4.1.
General Description ................................................................................................................ 54
4.2.
GNSS Performance ................................................................................................................ 54
4.3.
Layout Guidelines ................................................................................................................... 55
5
Antenna Interfaces .......................................................................................................................... 56
5.1.
Main Antenna Interface .......................................................................................................... 56
5.1.1.
Pin Definition ................................................................................................................ 56
5.1.2.
Operating Frequency ................................................................................................... 56
5.1.3.
Reference Design of RF Antenna Interface ................................................................. 57
5.1.4.
Reference Design of RF Layout ................................................................................... 58
5.2.
GNSS Antenna Interface ........................................................................................................ 60
5.3.
Antenna Installation ................................................................................................................ 61
5.3.1.
Antenna Requirements ................................................................................................ 61
5.3.2.
Recommended RF Connector for Antenna Installation ................................................ 62
6
Electrical, Reliability and Radio Characteristics .......................................................................... 64
6.1.
Absolute Maximum Ratings .................................................................................................... 64
6.2.
Power Supply Ratings ............................................................................................................ 64
6.3.
Operation and Storage Temperatures .................................................................................... 65
6.4.
RF Output Power .................................................................................................................... 65
6.5.
RF Receiving Sensitivity ......................................................................................................... 66
6.6.
Electrostatic Discharge ........................................................................................................... 67
7
Mechanical Dimensions.................................................................................................................. 69
7.1.
Mechanical Dimensions of the Module ................................................................................... 69
7.2.
Recommended Footprint ........................................................................................................ 71
7.3.
Design Effect Drawings of the Module .................................................................................... 72
8
Storage, Manufacturing and Packaging ........................................................................................ 73
8.1.
Storage ................................................................................................................................... 73
8.2.
Manufacturing and Soldering .................................................................................................. 74
8.3.
Packaging ............................................................................................................................... 75
9
Appendix A References .................................................................................................................. 77
10
Appendix B GPRS Coding Schemes ............................................................................................. 80
11
Appendix C GPRS Multi-slot Classes ............................................................................................ 81
12
Appendix D EDGE Modulation and Coding Schemes .................................................................. 83
