SIM900 데이터 시트보기 (PDF) - Unspecified

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SIM900

SIM900 Quad-band/SIM900A Dual-band GSM/GPRS module

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SIM900 Hardware Design

Table Index

TABLE 1: RELATED DOCUMENTS ............................................................................................................................... 8

TABLE 2: TERMS AND ABBREVIATIONS ................................................................................................................... 8

TABLE 3: SIM900A KEY FEATURES ........................................................................................................................... 13

TABLE 4: CODING SCHEMES AND MAXIMUM NET DATA RATES OVER AIR INTERFACE ............................ 15

TABLE 5: PIN DESCRIPTION ....................................................................................................................................... 17

TABLE 6: OVERVIEW OF OPERATING MODES........................................................................................................ 20

TABLE 7: PIN DEFINITION OF THE SERIAL INTERFACES .................................................................................... 32

TABLE 8: LOGIC LEVELS OF THE SERIAL PORT AND DEBUG PORT ................................................................. 32

TABLE 9: PIN DEFINE OF THE AUDIO INTERFACE ................................................................................................ 35

TABLE 10: MIC INPUT CHARACTERISTICS ............................................................................................................. 38

TABLE 11: AUDIO OUTPUT CHARACTERISTICS .................................................................................................... 38

TABLE 12: PIN DEFINE OF THE SIM INTERFACE.................................................................................................... 38

TABLE 13: PIN DESCRIPTION (AMPHENOL SIM CARD HOLDER) ...................................................................... 40

TABLE 14: PIN DESCRIPTION (MOLEX SIM CARD HOLDER) .............................................................................. 41

TABLE 15: PIN DEFINE OF THE LCD INTERFACE................................................................................................... 42

TABLE 16: PIN DEFINE OF THE KEYPAD INTERFACE........................................................................................... 42

TABLE 17: ADC SPECIFICATION ................................................................................................................................ 44

TABLE 18: BEHAVIOURS OF THE RI.......................................................................................................................... 44

TABLE 19: WORKING STATE OF THE NETLIGHT ................................................................................................... 45

TABLE 20: PIN DEFINE OF THE GPIO INTERFACE ................................................................................................. 46

TABLE 21: PIN DEFINE OF THE PWM........................................................................................................................ 47

TABLE 22: PIN DEFINE OF THE I2C BUS .................................................................................................................. 48

TABLE 23: SIM900A CONDUCTED RF OUTPUT POWER ........................................................................................ 48

TABLE 24: SIM900A CONDUCTED RF RECEIVE SENSITIVITY ............................................................................ 48

TABLE 25: SIM900A OPERATING FREQUENCIES.................................................................................................... 49

TABLE 26: ABSOLUTE MAXIMUM RATINGS........................................................................................................... 49

TABLE 27: SIM900A OPERATING TEMPERATURE .................................................................................................. 49

TABLE 28: SIM900A POWER SUPPLY RATINGS....................................................................................................... 50

TABLE 29: SIM900A CURRENT CONSUMPTION...................................................................................................... 50

TABLE 30: THE ESD ENDURE STATUE MEASURED TABLE (TEMPERATURE: 25℃, HUMIDITY:45% ) ........ 51

TABLE 31: PIN ASSIGNMENT...................................................................................................................................... 55

SIM900_HD_V1.01

5

26.12.2009

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