User's Manual

Smart Machine Smart Decision
SIM5320A_Hardware Design_V1.01 2011-2-29
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3.10 GPIO Interface ........................................................................................................................... 43
3.10.1 Pin Description .................................................................................................................... 43
3.10.2 Application Guide ............................................................................................................... 44
3.11 PCM Interface ............................................................................................................................ 46
3.11.1 Pin Description .................................................................................................................... 46
3.11.2 Signal Description ............................................................................................................... 46
3.12 Global Positioning System ......................................................................................................... 50
3.12.1 Technical specification ........................................................................................................ 50
3.12.2 Operate Mode ...................................................................................................................... 50
3.12.3 Application Guide ............................................................................................................... 51
3.13 Multi-functional interface........................................................................................................... 52
3.13.1 Sink Current Source ............................................................................................................ 52
3.13.2 Reset Function..................................................................................................................... 53
3.13.3 ADC..................................................................................................................................... 54
3.13.4 LDO..................................................................................................................................... 55
4 RF Specification.................................................................................................................................. 55
4.1 RF Specification ............................................................................................................................ 55
4.2 Operating Specification ................................................................................................................. 56
4.3 Antenna Design Guide................................................................................................................... 57
5 Reliability and Operating Characteristics........................................................................................ 59
5.1 Electronic Characteristics .............................................................................................................. 59
5.2 Operating Mode ............................................................................................................................. 59
5.2.1 Operating Modes Overview.................................................................................................... 60
5.2.2 Minimize Power Consumption ............................................................................................... 61
5.3 Current Consumption..................................................................................................................... 61
5.4 EMC and ESD Notes ..................................................................................................................... 64
6 Guide for Production.......................................................................................................................... 65
6.1 Top and Bottom View of SIM5320A ............................................................................................ 65
6.2 Typical Solder Reflow Profile ....................................................................................................... 65
6.3 Moisture Sensitivity Level (MSL)................................................................................................. 66
6.4 Stencil Foil Design Recommendation ........................................................................................... 66
6.5 Recommended Pad Design ............................................................................................................ 67
Appendix .................................................................................................................................................... 68
A. System Design..................................................................................................................................... 68
B. SIM5320A GPIOs List........................................................................................................................ 69
C. Digital I/O Characteristics................................................................................................................... 69
D. Related Documents ............................................................................................................................. 70
E. Terms and Abbreviations.....................................................................................................
................ 71
F. Safety Caution...................................................................................................................................... 74