3. TECHNICAL BRIEF
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Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
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3.1 GENERAL DESCRIPTION
The E510f supports UMTS-850, UMTS-2100, GSM-850, GSM-850, GSM-900, GSM-1800, and GSM-1900 based
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.
[Figure 1-1] Block diagram of RF part
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