{"title":"Design of a low-power CMOS baseband circuit for wideband CDMA testbed","authors":"Chunlei Shi, Yue Wu, M. Ismail","doi":"10.1109/LPE.2000.155284","DOIUrl":null,"url":null,"abstract":"In this paper, the design and performance of a CMOS base-band circuit for WCDMA direct conversion receiver are presented. Consisting of one 5th-order anti-aliasing filter, one 4th-order tunable channel filter, and three variable gain amplifier (VGA) stages, the baseband chain provides 72 dB gain range with 2 dB gain step and is tunable to select three different bandwidths (from 5 MHz to 20 MHz radio-frequency spacing). It dissipates only 18 mW from a single 3V supply. The input IP3 is 10 dBm, and the input-referred noise in the passband is 41nV//spl radic/(Hz).","PeriodicalId":188020,"journal":{"name":"ISLPED'00: Proceedings of the 2000 International Symposium on Low Power Electronics and Design (Cat. No.00TH8514)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ISLPED'00: Proceedings of the 2000 International Symposium on Low Power Electronics and Design (Cat. No.00TH8514)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LPE.2000.155284","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, the design and performance of a CMOS base-band circuit for WCDMA direct conversion receiver are presented. Consisting of one 5th-order anti-aliasing filter, one 4th-order tunable channel filter, and three variable gain amplifier (VGA) stages, the baseband chain provides 72 dB gain range with 2 dB gain step and is tunable to select three different bandwidths (from 5 MHz to 20 MHz radio-frequency spacing). It dissipates only 18 mW from a single 3V supply. The input IP3 is 10 dBm, and the input-referred noise in the passband is 41nV//spl radic/(Hz).
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