Audio Signal Processor
HA12173 Series Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) ADE-204-016 1st Edition Nov. 1992 Description HA12173 series are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor and PB equalizer system in one chip. Functions • PB equalizer • Dolby B/C-NR • Music sensor × 2 channel × 2 ...
Hitachi Semiconductor