Hardware+Design V1.07

Smart Machine Smart Decision
Figure Index
Add time to power on again in table 7. Modify Figure 16 and UART chapter.................................................................. 9
Figure 1: SIM5320 functional architecture ..................................................................................................................... 11
Figure 2: Pin view........................................................................................................................................................... 13
Figure 3: Top dimensions (Unit: mm)............................................................................................................................. 18
Figure 4: Side dimensions (Unit: mm)............................................................................................................................ 18
Figure 5: Bottom dimensions (Unit: mm) ....................................................................................................................... 19
Figure 6: Footprint recommendation (Unit: mm)............................................................................................................ 19
Figure 7: VBAT_RF voltage drop during burst emission (GSM/GPRS)......................................................................... 20
Figure 8: VBAT input application circuit........................................................................................................................ 21
Figure 9: Reference circuit of the LDO power supply .................................................................................................... 22
Figure 10: Reference circuit of the DCDC power supply ............................................................................................... 22
Figure 11: RTC supply from capacitor............................................................................................................................ 23
Figure 12: RTC supply from non-chargeable battery...................................................................................................... 23
Figure 13: RTC supply from rechargeable battery .......................................................................................................... 23
Figure 14: Seiko XH414H-IV01E Charge-Discharge characteristic............................................................................... 24
Figure 15: Power on Timing Sequence ........................................................................................................................... 25
Figure 16: Power off timing sequence ............................................................................................................................ 26
Figure 17: Full modem.................................................................................................................................................... 27
Figure 18: Null modem................................................................................................................................................... 28
Figure 19: RI behaviour in NULL Modem ..................................................................................................................... 29
Figure 20: RI behaviour in FULL Modem ...................................................................................................................... 29
Figure 21: Speaker interface configuration..................................................................................................................... 31
Figure 22: Receiver interface configuration.................................................................................................................... 31
Figure 23: Microphone interface configuration .............................................................................................................. 31
Figure 24: USIM interface reference circuit ................................................................................................................... 34
Figure 25: Amphenol SIM card socket ........................................................................................................................... 35
Figure 26: Reference circuit............................................................................................................................................ 37
Figure 27: USB interface ................................................................................................................................................ 39
Figure 28: Application circuit ......................................................................................................................................... 41
Figure 29: Flight mode switch ........................................................................................................................................ 42
Figure 30: Synchrony timing .......................................................................................................................................... 44
Figure 31: EXT CODEC to MODULE timing................................................................................................................ 44
Figure 32: MODULE to EXT CODEC timing................................................................................................................ 44
Figure 33: Synchrony timing .......................................................................................................................................... 45
Figure 34: EXT CODEC to MODULE timing................................................................................................................ 46
Figure 35: MODULE to EXT CODEC timing................................................................................................................ 46
Figure 36: Active antenna circuit .................................................................................................................................... 48
Figure 37：Passive antenna circuit (Default) ................................................................................................................. 49
Figure 38: Current drive.................................................................................................................................................. 50
Figure 39: Reset circuit................................................................................................................................................... 51
Figure 40: Reference circuit............................................................................................................................................ 51
Figure 41: Antenna matching circuit............................................................................................................................... 55
SIM5320_Hardware Design_V1.07 2012-09-21
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