SIM Tech SIM900D HD Manual page 5

SIM900D Hardware Design
Table Index
TABLE1: RELATED DOCUMENTS ................................................................................................................................ 8
TABLE2: TERMS AND ABBREVIATIONS .................................................................................................................... 9
TABLE3: SIM900D KEY FEATURES............................................................................................................................ 13
TABLE4: CODING SCHEMES AND MAXIMUM NET DATA RATES OVER AIR INTERFACE ............................. 15
TABLE5: PIN DESCRIPTION ........................................................................................................................................ 18
TABLE6: OVERVIEW OF OPERATING MODES......................................................................................................... 21
TABLE7: SPECIFICATION OF RECOMMENDED BATTERY PACK......................................................................... 30
TABLE8: OPERATING MODES .................................................................................................................................... 31
TABLE9: AT COMMAND USUALLY USED IN CHARGE-ONLY MODE ................................................................. 32
TABLE10: PIN DEFINITION OF THE SERIAL INTERFACES ................................................................................... 36
TABLE11: LOGIC LEVELS OF THE SERIAL PORT AND DEBUG PORT ................................................................ 36
TABLE12: PIN DEFINITION OF THE AUDIO INTERFACE....................................................................................... 40
TABLE13: MIC INPUT CHARACTERISTICS .............................................................................................................. 43
TABLE14: AUDIO OUTPUT CHARACTERISTICS ..................................................................................................... 43
TABLE15: PIN DEFINITION OF THE SIM INTERFACE ............................................................................................ 44
TABLE16: PIN DESCRIPTION (AMPHENOL SIM CARD HOLDER) ....................................................................... 46
TABLE17: PIN DEFINITION OF THE LCD INTERFACE ........................................................................................... 46
TABLE18: ADC SPECIFICATION ................................................................................................................................. 46
TABLE19: BEHAVIOURS OF THE RI........................................................................................................................... 47
TABLE20: WORKING STATE OF THE NETLIGHT .................................................................................................... 48
TABLE21: PIN DEFINITION OF THE GPIO INTERFACE .......................................................................................... 49
TABLE22: PIN DEFINITION OF THE PWM ................................................................................................................ 49
TABLE23: PIN DEFINITION OF THE ANT.................................................................................................................. 50
TABLE24: SIM900D CONDUCTED RF OUTPUT POWER......................................................................................... 50
TABLE25: SIM900D CONDUCTED RF RECEIVE SENSITIVITY ............................................................................. 50
TABLE26: SIM900D OPERATING FREQUENCIES..................................................................................................... 51
TABLE27: ABSOLUTE MAXIMUM RATINGS............................................................................................................ 51
TABLE28: SIM900D OPERATING TEMPERATURE ................................................................................................... 51
TABLE29: SIM900D POWER SUPPLY RATINGS........................................................................................................ 52
TABLE30: SIM900D CURRENT CONSUMPTION (VBAT=3.8V) .............................................................................. 53
TABLE31: THE ESD ENDURE STATUE MEASURED TABLE (TEMPERATURE: 25℃, HUMIDITY:45% ) ......... 54
TABLE32: PIN ASSIGNMENT....................................................................................................................................... 59
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SIM900D_HD_V1.02 09.04.2010