Technical Brief; General Description - LG -E510 Service Manual

3. TECHNICAL BRIEF

3.1 GENERAL DESCRIPTION

The E510f supports UMTS-850, UMTS-2100, GSM-850, GSM-850, GSM-900, GSM-1800, and GSM-1900 based
E510
GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1 Zero-IF architecture to
eliminate intermediate frequencies, directly converting signals between RF and baseband. The quad-band
GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop that translates
the GMSK-modulated or 8-PSK-modulated signal to RF.
W2100
DUPLEXER
LGE Internal Use Only
900
W2100
W900
Dual
PAM
W900
DUPLEXER
EDGE G
PAM
[Figure 1-1] Block diagram of RF part
WB_MX_INP
WB_MX_INM
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3. TECHNICAL BRIEF
Only for training and service purposes