60_dB_RANGE_FOR_AUDIO

Published:2009/6/30 2:03:00 Author:May | From:SeekIC

JFET acts as voltage-controlled resistor in peak-detecting control loop of 741 opamp. Input range is 20 mV to 20V, with response time of 1.2 ms and delay of 0.4.s.Outputisabout 1.4V P-P over entire 60-dB range，-N，Heckt、Automatic Gain Control Has 60～Decibel Range、Electronics，March 31,1977、p 107



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