A SAW-less CMOS TX for EGPRS and WCDMA

Kurt Hausmann,Jeffrey D Ganger,Mark Kirschenmann,George Norris,Wayne Shepherd,Vivek Bhan,Daniel B Schwartz

Radio Frequency Integrated Circuits Symposium（2010）

引用 14|浏览29

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摘要

A 90 nm CMOS TX path architected for operation without inter-stage SAW filters is shown. The SAW elimination strategy is purely low noise design but the architecture still achieves DG.09 weighted TX current drain of 50 mA from the battery. The combination of a passive interleaved switching mixer plus digital gain control allows 2% EVM at 2 dbm and 4.2% at -78 dbm.

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关键词

code division multiple access,packet radio networks,surface acoustic wave filters,cmos tx path,egprs,saw elimination strategy,saw filters,wcdma,current 50 ma,digital gain control,passive interleaved switching mixer,size 90 nm,cmos integrated circuit,code division multi-access,mobile communication,transceiver,transmitters,noise,gain,voltage,gain control,cmos integrated circuits,spread spectrum communication,impedance matching,radio frequency,surface acoustic wave

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