Philips CT6558 Tuning Up Procedure & Operational Manual page 9

PHILIPS
Tuning Up procedure & Operational Manual
EGSM
PCS
DCS
For example:(EGAM, 925-960Mhz)
4. 7130 is the main IC in RF circuit, which response for signal modulation and demodulation. Signal
input in 7130 after pass BPF, Signal pass LNA, then mix with local signal (RF-VCO) get the -100Khz
signal. After pass the filter, output (IA IB QA QB) IQ signal. RF-VCO is fully integrated inside 7130.
SAW Filter (EGSM)
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Revision :
Date :2004-9-7
Page No. : Page 9 of 9
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