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Journal Article

Application of the Two Quadrant Transconductance Amplifier/Multiplier in Audio Signal Processing

Authors: Jung, Walter G.

Journal of the Audio Engineering Society · Volume 23 · Issue 3 · pp. 207–212 · April 1975

Abstract

A fundamental audio signal processing requirement is the control of gain; recent trends have been demonstrated toward control by electronic means. An inexpensive and viable means of gain control is the monolithic two-quadrant multiplier, which can be configured for wide dynamic ranges (>80 dB) of signal handling and control, is capable of low-distortion operation, fast response, and is flexible in its use. This paper deals with both the classic form of transconductance multiplier and a more recent innovation, the operational transconductance amplifier which can be used as a multiplier and/or an amplifer. Considerations for optimized use in various audio signal processing functions is discussed, and representative circuitry is given.

Details

Publication
Journal of the Audio Engineering Society
Volume
23
Issue
3
Pages
207–212
Publication date
April 6, 1975
Affiliation
AAL Corporation, Cockeysville, MD (See document for exact affiliation information.)
Type
Journal Article