Rf Circuit Technical Brief; General Description - LG KC550 Service Manual

4. RF circuit technical brief

4.1 General Description

The RF transceiver is integrated in S-GOLDradio(PMB8888),which suppors quad-band operation for
voice and data transfer applications. The whole transceiver function is integrated in main IC, PMB8888
provides 4 LNA inputs for RF receiving and two outputs for PAM input for High/Low band. A direct
conversion receiver and a quad-band polar transmitter for GSM and EDGE with integrated PGA
functionality.
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 32. PMB 6272 Function Block Diagram
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4. RF circuit technical brief
LGE Internal Use Only