Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
© 2003 All rights reserved
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Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
2.9 Electrical characteristics
2.9.1 Power Supply
2.9.1.1 Introduction
The table below sums up the power supply inputs / outputs available on the
WISMO Q2501 module:
Power suply Pin # I/O Description
VBATT 75, 77,
78, 79,
80
I Main power supply for both GPS and GSM
functions
GPS_VANT 18 I GPS antenna supply
VCC 60 O 2.8 V Power supply for external digital
devices
GPS_VCORE 19 O 1.8 V Power supply for external digital
devices
VCC_RTC 76 I/O RTC back-up power supply
2.9.1.2 Main power supply (VBATT)
Parameter Condition Min Typ Max Unit
Maximum output power
2.0 A peak
3.4 3.8 4.5 V
VBATT voltage
Rising time 10
µ
s
f*
≤
100 kHz
10 mVpp
100 kHz <f*<400 kHz 3 mVpp
f*=400 kHz 3 mVpp
f*=600/800/1000 kHz 0.5 mVpp
f*=500/700/900 kHz 1 mVpp
f*=1100 kHz 1 mVpp
f*=1200 kHz 1 mVpp
f*=1300 kHz 2 mVpp
f*=1400/1600 kHz 1 mVpp
f*=1500/1700 kHz 3 mVpp
Ripple voltage
(U
ripp
) before RF
parameters are
damaged
At T=25 °C
And
V=3.8 V
f*=1800 kHz 3 mVpp
Drop Voltage Maximum output power / V=3.8 V 300 mV
f*=ripple frequency measured in the burst.