Real Time Devices GSM35 Specifiche Pagina 68
- Pagina / 92
- Indice
- SEGNALIBRI
- Hardware 1
- Interface 1
- Description 1
- Contents 3
- 0 Version History 7
- 1 Introduction 8
- 1.2 Terms and abbreviations 9
- 1.3 Standards 12
- 1.4 Safety Precautions 13
- 2 Functions overview 15
- 2.2 Block diagram of TC35 18
- 2.3 Block diagram of TC37 19
- 2.4 GSM baseband processor 20
- GSM Engine 21
- User application 21
- Host interface via 21
- ZIF connector and FFC 21
- 3.1 Operating modes 22
- 3.2 Power supply 23
- 3.2.1 Minimizing power losses 24
- 3.2.2 Battery pack 25
- Figure 6: Charging process 27
- 3.2.2.4 Charger requirements 29
- 3.3.1 Turn on the GSM engine 30
- 3.3.2 Power saving 33
- 3.3.3 Wake up GSM engine 33
- 3.3.4 Turn off GSM engine 34
- 3.3.4.3 Automatic shutdown 35
- 3.4 RTC backup 38
- 3.5 Serial interface 40
- 3.6 Audio interface 42
- 3.6.1 Speech processing 43
- 3.7 SIM interface 44
- 3.7.1 Approval considerations 44
- 3.8 Control signals 47
- 3.8.1 Inputs 47
- 3.8.2 Outputs 48
- 3.9 Pin assignment 51
- 4 Radio interface 56
- GSC connector (from Murata) 57
- TRX Output 57
- L (27nH) 57
- 5 Physical characteristics 59
- 5.3.2 Mounting TC37 64
- Figure 30: Positioning labels 65
- Figure 31: Label dimensions 65
- 5.4 ZIF connector 67
- Figure 34: PCB ZIF connector 68
- 5.5 Antenna design 69
- 6.1 Absolute maximum ratings 74
- 6.2 Operating conditions 74
- 6.3 Temperature conditions 74
- 6.4 Power supply ratings 75
- 6.4.1 Drop definition 75
- 6.5.3 Voiceband receive path 82
- 6.5.4 Voiceband transmit path 83
- 6.6 Air interface 84
- 6.7 Electrostatic discharge 85
- 7 Updating Firmware 86
- 8 Reference Approval 87
- 8.2 CE Conformity 88
- 8.3 G.C.F. Conformity 88
- L36880-N8100-A100 89
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