AND_LOGIC_FOR_MUTlNG

Published:2009/7/2 3:53:00 Author:May | From:SeekIC

Connection shown for National LM389 combination of three transistors with opamp gives standard AND circuit for controlling muting transistor in audio sys tem. Shorting pin 12 of opamp to ground gives NAND Iogic.- Audio Handbook, National Semiconductor, Santa Clara, CA, 1977, p 4-33-4-37.



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