XT65/XT75 Hardware Interface Overview
6.6 Power Supply Ratings
s
XT65_XT75_HO_v00.130
Page 43 of 67
2006-10-12
Confidential / Preliminary
6.6
Power Supply Ratings
Table 18:
Power supply ratings
Parameter
Description
Conditions
Min
Typ
Max
Unit
BATT+
Supply voltage
Directly measured at reference point TP
BATT+ and TP GND.
Voltage must stay within the min/max
values, including voltage drop, ripple,
spikes.
3.3
3.8
4.5
V
Voltage drop during
transmit burst
Normal condition, power control level
for P
out max
400
mV
Voltage ripple
Normal condition, power control level
for P
out max
@ f<200kHz
@ f>200kHz
50
2
mV
mV
I
VDDLP
OFF State supply
current
RTC Backup @ BATT+ = 0V
40
µA
I
BATT+
POWER DOWN mode
1
1.
Measured after module INIT (switch ON the module and following switch OFF); applied voltage on BATT+ (w/o
INIT) show increased POWER DOWN supply current.
60
120
µA
Average standby
supply current
2
(GPS off)
2.
Additional conditions:
- SLEEP and IDLE mode measurements started 5 minutes after switching ON the module or after mode transition
- Averaging times: SLEEP mode - 3 minutes; IDLE mode - 1.5 minutes
- Communication tester settings: no neighbor cells, no cell reselection
- USB interface disabled
SLEEP mode @ DRX = 9
3.7
3
3.
Stated value applies to operation without autobauding (AT+IPR
≠
0).
mA
SLEEP mode @ DRX = 5
4.6
3
mA
SLEEP mode @ DRX = 2
7.0
3
mA
IDLE mode @ DRX = 2
28
4
4.
Stated value applies to operation without autobauding (AT+IPR
≠
0). If autobauding is enabled (AT+IPR=0) aver-
age current consumption in IDLE mode is up to 43mA.
mA
Average supply cur-
rent for GPS part
(GSM in IDLE
mode, w/o active
GPS antenna)
Satellite acquisition (no position found)
68
mA
Tracking mode
5
5.
1 fix/s, tracking on 6 channels, depends on FXN configuration settings
70
mA
Sleep state
32
mA
Shut down mode
28
mA