COMPRESSOR_LIM_ITER

Published:2009/6/29 23:45:00 Author:May | From:SeekIC

Developed for use with microphone in public-address systems.Bandwidth is 15 Hz to 25 kHz. R1 sets threshold voltage and compression law. Output of CA3130 inverting opamp is made as large as possible before being applied to rectifier and low-pass filter, to minimize effects of diode nonlinearities and capacitor leakage. Low-pass filter gives required fast attack time of about 500 ps and long decay time of about 1 min.-M. B.Taylor, Speech Compressor/Limiter, Wireless World, May 1977, p 80.



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