A bandpass filter with inherent gain adaptation for hearing applications

被引：21

作者：

Odarne, Koli M. ^{[1
]}

Anderson, David V. ^{[1
]}

Hasler, Paul ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2008年 / 55卷 / 03期

关键词：

bandpass filter; gain control; nonlinear circuits;

D O I：

10.1109/TCSI.2008.916553

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：

In this paper, we propose a novel bandpass filter design that incorporates automatic gain control (AGC). The gain control in the filter reduces the performance requirements of a wideband AGC, and allows for low-power multichannel compression. The filter achieves up to 15 dB of compression on a 55-dB input dynamic range and is tunable over the audio frequency range, with microwatt power consumption and <5% harmonic distortion.

引用

页码：786 / 795

页数：10

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