3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
3.1 GENERAL DESCRIPTION
The LG-P970 supports UMTS-900, UMTS-1900, 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 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.
[Figure 3-1] Block diagram of RF part
3. TECHNICAL BRIEF
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