CMOS digitally programmable filter for multi-standard wireless receivers

被引：13

作者：

Alzaher, HA ^{[1
]}

Elwan, HO ^{[1
]}

Ismail, M ^{[1
]}

机构：

[1] Ohio State Univ, Dept Elect Engn, Dreese Labs, Analog VLSI Lab, Columbus, OH 43210 USA

来源：

ELECTRONICS LETTERS | 2000年 / 36卷 / 02期

关键词：

D O I：

10.1049/el:20000197

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A technique for designing digitally programmable CMOS integrated filters for multi-standard wireless receivers is presented. The technique exhibits the wide frequency range of the transconductance amplifier filters while offering improved linearity. It utilises digitally controlled current followers to provide precise frequency characteristics that can be tuned over a wide range. A digitally tuned lowpass filter is designed for implementing the channel-select filter in the baseband chain of a multi-standard CMOS wireless receiver. Simulation and experimental results obtained from a 1.2 mu m chip show a programmable frequency response covering the IS-54, GSM, IS-95 and WCDMA wireless standards.

引用

页码：133 / 135

页数：3

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