HA12155NT/HA12157NT
Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
ADE-207-115C (Z) 4th Edition June 1997 Description
HA12155NT/HA12157NT is silicon monolithic bipolar IC providing Dolby noise reduction system*, electrical volume system, REC equalizer system and level meter system in one chip.
Functions
REC equalizer ...