Specifications

M80 Hardware Design
M80_HD_V1.0 - 4 -
3.10.3. Receiver and speaker interface design ................................................................... 56
3.10.4. Earphone interface design ..................................................................................... 57
3.10.5. Loud speaker interface design ............................................................................... 58
3.10.6. Audio characteristics ............................................................................................. 59
3.11. SIM card interface ........................................................................................................... 59
3.11.1. SIM card application ............................................................................................. 59
3.11.2. 6 Pin SIM cassette ................................................................................................. 61
3.11.3. 8 Pin SIM cassette ................................................................................................. 62
3.12. Camera interface ............................................................................................................. 63
3.13. SD card interface ............................................................................................................. 63
3.14. PCM interface ................................................................................................................. 63
3.15. USB interface .................................................................................................................. 63
3.16. ADC ................................................................................................................................ 64
3.17. Behaviors of the RI ......................................................................................................... 64
3.18. Network status indication ................................................................................................ 67
3.19. Operating status indication .............................................................................................. 67
4. Antenna interface ........................................................................................................................ 69
4.1. RF reference design ........................................................................................................... 69
4.2. RF output power ................................................................................................................ 70
4.3. RF receiving sensitivity ..................................................................................................... 70
4.4. Operating frequencies ....................................................................................................... 70
4.5. RF cable soldering ............................................................................................................. 70
5. Electrical, reliability and radio characteristics ............................................................................ 72
5.1. Absolute maximum ratings ................................................................................................ 72
5.2. Operating temperature ....................................................................................................... 72
5.3. Power supply ratings ......................................................................................................... 72
5.4. Current consumption ......................................................................................................... 73
5.5. Electro-static discharge ..................................................................................................... 76
6. Mechanical dimensions ............................................................................................................... 77
6.1. Mechanical dimensions of module .................................................................................... 77
6.2. Footprint one of recommendation ..................................................................................... 79
6.3. Footprint two of recommendation ..................................................................................... 80
6.4. Top view of the module .................................................................................................... 81
6.5. Bottom view of the module ............................................................................................... 82
7. Storage and Manufacturing ......................................................................................................... 83
7.1. Storage .............................................................................................................................. 83
7.2. Soldering ........................................................................................................................... 84
7.3. Packaging .......................................................................................................................... 85
Appendix A: GPRS coding schemes............................................................................................... 86
Appendix B: GPRS multi-slot classes ............................................................................................. 87
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