Confidential
MANUAL
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Document number
Revision
7/198 17-LXE 108 566 Uen
A
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2.3.2 Power Signals
•
VCC_MAIN
•
VCC_AUX
•
VRTC
•
GND
VCC_MAIN and VCC_AUX can be supplied from the same regulator, or from separate supplies. For more
information see “
Recommended Application Circuitry
”.
2.3.2.1 VCC_MAIN
Limits
Parameter
Symbol
Condition
Minimum
Nominal
Maximum
Units
Normal SIM
4.5
5.0
5.5
V
IN
Extended SIM-cable driver
4.9
1
5.0 5.5
Volt
0 – 4kHz
100
V
ripple
>4kHz
50
mV
In-rush current when
applying power
Supply ESR = 110m
Ω
15.0
A
In-rush current when
setting
MODULE_PWR_EN_B
active
3.0
A
During a call
100
mA
Sleep-mode 2.0
4.5
6.0
Sleep-mode
Extended SIM-cable driver
4.0 6.5 8.0
mA
RMS
VCC_MAIN
Baseband
and receiver
supply
voltage.
I
IN
2
Power Down
0.1
1
μ
A
Table 4: VCC_MAIN Electrical Parameters
1
The minimum voltage level is increased from 4.5 to 4.9 if the application is using a module capable of driving long
cables (up to 8 meters) and is expected to be used with 5V SIM-cards.
2
In-Rush current specified in VCC_MAIN combines both VCC_MAIN and VCC_AUX.