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A Monolithic Voltage-Controlled Amplifier Employing Log-Antilog Techniques

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The more recent approaches toward the implementation of voltage-controlled amplifiers have employed log-antilog conversion techniques. Presented in this paper is an electronic gain control circuit which uses such techniques and is well suited for monolithic integration into a low-cost integrated circuit. The various considerations affecting such parameters as control voltage feedthrough, distortion, noise, and bandwidth are discussed. Finally, a potential application in a voltage-controlled shelving equalizer is given.

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JAES Volume 24 Issue 2 pp. 93-102; March 1976
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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=2639

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