HA12209 Datasheet (Hitachi Semiconductor)

HA12209, Audio Signal Processor

HA12209F is silicon monolithic bipolar IC providing Dolby noise reduction system *, music sensor system, REC equalizer system and each electronic control switch in one chip.

Functions * Dolby B-NR * REC equalizer * Music sensor × 2 channel × 2 channel × 1 channel

HA12209 Features

* REC equalizer is very small number of external parts and have 4 types of frequency characteristics built-in.

* 2 types of input for PB, 1 type of input for REC.

* 70µ-PB equalizer changing system built-in.

* Dolby NR with dubbing double cassette decks. Unprocessed s