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A direct conversion receiver for the 3G WCDMA standardA Direct Conversion Receiver for the 3G WCDMA Standard
Ranjit Gharpurey', Naveen Yanduru', Francesco Dantoni', Petteri Litmanen', Guglielmo Sirna', Terry Mayhugh', Charles Lin2, Irene Deng2, Paul Fontaine2,Fang Lin2
'RF Design Group, *Mixed-Signal Design Group, Wireless Terminal Business Unit, Texas Instruments Inc., Dallas, T X 75265

Abstract A highly integrated direct-conversion receiver that satisfies requirements of the third generation Wideband Code Division Multiple Access (WCDMA) mobile phone standard is described. The receiver IC includes the front-end low-noise amplifier, down-conversion mixers, channel select filters, baseband variable gain amplifiers, and the entire frequency synthesizer, including the voltage controlled oscillator, buffers and phase-locked loop. Introduction T……
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