Power Supply Ratings - SIM Tech SIM900D HD Manual

SIM900D Hardware Design

5.3 Power Supply Ratings

Table29: SIM900D power supply ratings
Parameter Description
VBAT Supply voltage
Voltage drop
during transmit
burst
Voltage ripple
I Average
VBAT
current
SIM900D_HD_V1.02
Conditions
Voltage must stay within the min/max
values, including voltage drop, ripple, and
spikes.
Normal condition, power control level for
Pout max
Normal condition, power control level for
Pout max
@ f<200kHz
@ f>200kHz
supply POWER DOWN mode
SLEEP mode(BS-PA-MFRMS=2 )
(BS-PA-MFRMS=5 )
(BS-PA-MFRMS=9 )
IDLE mode
GSM 850
EGSM 900
DCS1800
PCS1900
TALK mode
GSM 850
EGSM 900
DCS1800
PCS1900
DATA mode, GPRS (3 Rx,2Tx)
GSM 850
EGSM 900
DCS1800
PCS1900
DATA mode, GPRS (4 Rx,1Tx)
GSM 850
EGSM 900
DCS1800
PCS1900
52
Min Typ Max Unit
3.4 4.0 4.5 V
300 mV
50 mV
2
30 uA
1.5 mA
1.2 mA
1.0 mA
22
22 mA
22
22
235 mA
252
176
176
425 mA
454
307
309
262 mA
280
208
205
09.04.2010