Published:2009/6/29 23:53:00 Author:May | From:SeekIC
Uses Signetics NE571 or NE570 analog compandor. Gain is determined by current developed through RGAIN in conjunction with intemal 1.8-V voltage reference. When control input is low, normal current flowsthrough RGAIN When control signal is high, CR1 is forward-biased, interrupting current flow, and output is attenuated.-W. G. Jung, Gain Control IC for Audio Signal Processing, Ham Radio, July 1977, p 47-53.
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