V1.0 Page 7 of 46 ICM MP CCQ ST
C45, M50 AND MT50 Company Confidential © Copyright Siemens AG 05/02
4.1 Power Supply RF-Part
A directly to Batt+ connected voltage regulator, with a nominal output voltage
of 2.8V is used, to perform the required “RF-Voltages” named VCC2_8 and
VCC_SYN.
The voltage regulator is activated as well as deactivated via SLEEPQ and
VCXOEN provided by the EGOLD+
The temporary deactivation is used to extend the stand by time.
Blockdiagram
PIN-OUT
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