Installation Instructions
SIM5216A _HD_V1.02 Hardware Design
SIM5216A _HD_V1.02 26.08.2010
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Contents
Version history..............................................................................................................3
1 Introduction...............................................................................................................6
1.1 Related documents ..............................................................................................................6
1.2 Terms and abbreviations......................................................................................................7
2 Product concept.......................................................................................................10
3 Application interface...............................................................................................13
3.1 SIM5216A pin description ................................................................................................14
3.2 Operating modes ...............................................................................................................17
3.3 Power supply.....................................................................................................................18
3.3.1 Power supply pins on the board-to-board connector .......................................................................19
3.3.2 Minimizing power losses ................................................................................................................ 20
3.3.3 Monitoring power supply................................................................................................................ 20
3.4 Power up and power down scenarios ................................................................................20
3.4.1 Turn on SIM5216A .........................................................................................................................20
3.4.2 Turn off SIM5216A.........................................................................................................................21
3.5 Power saving.....................................................................................................................22
3.5.1 Minimum functionality mode.......................................................................................................... 22
3.5.2 Flight mode .....................................................................................................................................23
3.5.3 Sleep Mode ..................................................................................................................................... 23
3.5.4 Wake up SIM5216A from Sleep Mode ...........................................................................................24
3.6 RTC backup.......................................................................................................................24
3.7 Serial interface ..................................................................................................................26
3.8 Audio interfaces ................................................................................................................29
3.8.1 Speaker interface configuration....................................................................................................... 30
3.8.2 Microphone interfaces configuration .............................................................................................. 31
3.8.3 Earphone interface configuration ....................................................................................................32
3.8.4 Referenced electronic characteristic................................................................................................32
3.8.5 Programming characteristic............................................................................................................. 33
3.9 USIM card interface..........................................................................................................36
3.9.1 USIM card application .................................................................................................................... 36
3.9.2 Design considerations for USIM card holder ..................................................................................37
3.10 I2C interface....................................................................................................................38
3.11 USB interface..................................................................................................................39
3.12 Module Reset ..................................................................................................................40
3.13 General purpose input & output (GPIO) .........................................................................40
3.14 ADC interface .................................................................................................................42
3.15 LDO power output ..........................................................................................................43