AN612 Overview
WIRELESS, RF, AND CABLE Jun 01, 2001 TD-SCDMA Radio Chipset Block Diagram for Handset Application China option for 3G cellular phone is the TD-SCDMA system. A detailed handset transceiver diagram is presented showing MAX2361 as the transmit IC, the MAX2291 as the power amplifier (PA), and the MAX2388 and MAX2309 form the receiver. A VCO buffer amplifier is used to provide isolation and maintains a clean LO signal.