LG LG-E730 - 3 Technical Brief; General Description

3. TECHNICAL BRIEF
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Only for training and service purposes
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3.1 GENERAL DESCRIPTION
The LG-E730 supports UMTS-2100, UMTS-900, GSM-850, GSM-900, GSM-1800, and GSM-1900 based
GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1Zero-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.
G G
G
G G
[Figure 3.1] Block diagram of RF part
G G
3. TECHNICAL BRIEF