User's Manual

LTE Module Series
EC25Hardware Design
EC25_Hardware_DesignConfidential / Released 5 / 90
3.15. STATUS ................................................................................................................................ 49
3.16. Behavior of the RI ................................................................................................................. 50
3.17. SGMII Interface ..................................................................................................................... 51
3.18. Wireless Connectivity Interfaces ........................................................................................... 53
3.18.1. WLAN Interface ........................................................................................................... 55
3.18.2. BT Interface* ................................................................................................................ 56
3.19. USB_BOOT Interface ............................................................................................................ 56
4 GNSS Receiver ................................................................................................................................ 58
4.1. General Description .............................................................................................................. 58
4.2. GNSS Performance .............................................................................................................. 58
4.3. Layout Guidelines ................................................................................................................. 59
5 Antenna Interfaces .......................................................................................................................... 60
5.1. Main/Rx-diversity Antenna Interface ..................................................................................... 60
5.1.1. Pin Definition ................................................................................................................ 60
5.1.2. Operating Frequency ................................................................................................... 60
5.1.3. Reference Design of RF Antenna Interface ................................................................. 61
5.1.4. Reference Design of RF Layout ................................................................................... 62
5.2. GNSS Antenna Interface ....................................................................................................... 64
5.3. Antenna Installation .............................................................................................................. 65
5.3.1. Antenna Requirement .................................................................................................. 65
5.3.2. Recommended RF Connector for Antenna Installation ................................................ 66
6 Electrical, Reliability and Radio Characteristics .......................................................................... 68
6.1. Absolute Maximum Ratings .................................................................................................. 68
6.2. Power Supply Ratings ........................................................................................................... 69
6.3. Operating Temperature ......................................................................................................... 69
6.4. Current Consumption ............................................................................................................ 70
6.5. RF Output Power .................................................................................................................. 73
6.6. RF Receiving Sensitivity ....................................................................................................... 74
6.7. Electrostatic Discharge ......................................................................................................... 76
7 Mechanical Dimensions.................................................................................................................. 77
7.1. Mechanical Dimensions of the Module.................................................................................. 77
7.2. Recommended Footprint ....................................................................................................... 79
7.3. Design Effect Drawings of the Module .................................................................................. 80
8 Storage, Manufacturing and Packaging ........................................................................................ 81
8.1. Storage ................................................................................................................................. 81
8.2. Manufacturing and Soldering ................................................................................................ 82
8.3. Packaging ............................................................................................................................. 83
9 Appendix A References .................................................................................................................. 84
10 Appendix B GPRS Coding Schemes ............................................................................................. 88
11 Appendix C GPRS Multi-slot Classes ............................................................................................ 89
12 Appendix D EDGE Modulation and Coding Schemes .................................................................. 90