ACTIVE_TONE_CONTROLS

Published:2009/7/10 6:03:00 Author:May | From:SeekIC

Provides ±20 dB gain with 3-dB corners at 30 and 10,000Hz，Use of LM349 quad opamp means only one IC is needed for both stereo channels, Buffer at input gives high input impedance (100k) for source, Total harmonic distortion is typically 0.05％ across audio band Input-to-output gain is at least 5.-“Audio Handbook,” National Semiconductor, Santa Clara, CA, 1977，p 2-40-2-49.



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