Specifications

XT55 Hardware Interface Description
Confidential / Preliminary
s
mo b i l e
XT55_hd_v00.02 Page 92 of 116 17.03.2004
6.4 Power supply ratings
Table 28: Power supply ratings (GSM/GPRS part)
Parameter Description Conditions Min Typ Max Unit
Supply voltage Reference points on XT55:
TP GSM_BATT+ and TP GND
(see Figure 52).
Voltage must stay within the
min/max values, including voltage
drop, ripple, spikes.
3.3 4.2 4.8 V
Voltage drop
during transmit
burst
Normal condition, power control
level for P
out max
400 mV
GSM_BATT+
Voltage ripple Normal condition, power control
level for P
out max
@ f<200kHz
@ f>200kHz
50
2 mV
POWER DOWN mode 50 100 µA
SLEEP mode @ DRX = 6 3 mA
IDLE mode EGSM 900
GSM 1800/1900
15
15
mA
TALK mode EGSM 900
1)
GSM 1800/1900
2)
260
180
mA
IDLE GPRS EGSM 900
GSM 1800/1900
15
15
mA
DATA mode GPRS,
(4 Rx, 1 Tx) GSM 900
1)
GSM 1800/1900
2)
450
330
mA
Average supply
current
3)
DATA mode GPRS,
(3 Rx, 2 Tx) EGSM 900
1)
GSM 1800/1900
2)
450
330
mA
I
GSM_BATT+
Peak supply
current (during
transmission slot
every 4.6ms)
Power control level
1)
1.6 A
1)
Power control level PCL 5
2)
Power control level PCL 0
3)
All average supply current values @ I
GSM_VDD
= 0mA