SIM900D Hardware Design
5.4 Current Consumption
Please refer to the following table for the values of current consumption.
Table31: SIM900D current consumption (VBAT=3.8V)
Voice Call
GSM 850/EGSM 900
@power level #5 <300mA,Typical 250mA
@power level #10,Typical 110mA
@power level #19,Typical 80mA
DCS 1800/PCS 1900
@power level #0 <200mA,Typical 175mA
@power level #10,Typical 95mA
@power level #15,Typical 75mA
GPRS Data
DATA mode, GPRS ( 1 Rx,1 Tx ) CLASS 8
GSM 850/EGSM 900
@power level #5 <300mA,Typical 240mA
@power level #10,Typical 117mA
@power level #19,Typical 88mA
DCS 1800/PCS 1900
@power level #0 <200mA,Typical 170mA
@power level #10,Typical 88mA
@power level #15,Typical 80mA
DATA mode, GPRS ( 3 Rx, 2 Tx ) CLASS 10
GSM 850/EGSM 900
@power level #5 <450mA,Typical 440mA
@power level #10,Typical 202mA
@power level #19,Typical 143mA
DCS 1800/PCS 1900
@power level #0 <350mA,Typical 300mA
@power level #10,Typical 139mA
@power level #15,Typical 126mA
DATA mode, GPRS ( 4 Rx,1 Tx ) CLASS 8
GSM 850/EGSM 900
@power level #5 <300mA,Typical 270mA
@power level #10,Typical 155mA
@power level #19,Typical 125mA
DCS 1800/PCS 1900
@power level #0 <300mA,Typical 205mA
@power level #10,Typical 126mA
@power level #15,Typical 119mA
Class 10 is default set when the module works at data translation mode, the module can also work at class 8 set by
AT command.
5.5 Electro-Static Discharge
The GSM engine is not protected against Electrostatic Discharge (ESD) in general. Therefore, it is subject to ESD
handing precautions that typically apply to ESD sensitive components. Proper ESD handing and packaging
procedures must be applied throughout the processing, handing and operation of any application using a
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2010.10.09
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