hardware design v2.00

Smart Machine Smart Decision
SIM908_Hardware Design_V2.00 2012.05.07
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6.8 Current Consumption (VBAT = 3.8V, GPS engine is powered down)
Table 27: GSM current consumption
*
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Symbol Parameter Conditions Value Unit
I
VRTC
VRTC current VBAT disconnects. Backup battery is 3 V 2 uA
Power down mode 50 uA
BS-PA-MFRMS=9 1.2
BS-PA-MFRMS=5 1.5
Sleep mode
BS-PA-MFRMS=2 1.7
mA
GSM 850
EGSM 900
DCS 1800
Idle mode
PCS 1900
21 mA
PCL=5 240
PCL=12 110
GSM 850
EGSM 900
PCL=19 76
PCL=0 180
PCL=7 89
Voice call
DCS 1800
PCS 1900
PCL=15 76
mA
PCL=5 240
PCL=12 110
GSM 850
EGSM 900
PCL=19 83
mA
PCL=0 170
PCL=7 95
Data mode
GPRS(1Rx,1Tx)
DCS 1800
PCS 1900
PCL=15 80
mA
PCL=5 270
PCL=12 150
GSM 850
EGSM 900
PCL=19 120
mA
PCL=0 210
PCL=7 130
Data mode
GPRS(4Rx,1Tx)
DCS 1800
PCS 1900
PCL=15 115
mA
PCL=5 435
PCL=12 185
GSM 850
EGSM 900
PCL=19 130
mA
PCL=0 320
PCL=7 155
I
VBAT
VBAT current
Data mode
GPRS(3Rx,2Tx)
DCS 1800
PCS 1900
PCL=15 122
mA
I
VBAT-peak
Peak current During Tx burst 2 A
* In above table the current consumption value is the typical one of the module tested in laboratory. In the mass production stage,
there may be differences among each individual.