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HA12179F

Audio Signal Processer for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)

Hitachi -> Renesas Electronics 

HA12179F

Audio Signal Processer for Car Deck and Cassette Deck

(Dolby B-type NR with PB Amp)

ADE-207-136

1st Edition

Apr. 1994

Description

HA12179F is silicon monolithic bipolar IC providing Dolby noise reduction system*, line mute, music

sensor and PB equalizer system in one chip.

Functions

• Line mute

• PB equalizer

• Dolby B-NR

• Music sensor

× 2 channel

× 2 channel

× 2 channel

× 1 channel

Features

• Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully

electronic control switching built-in.

• Line mute ON/OFF is available.

• Changeable to Foward, Reverse-mode for PB head with fully electronic control switching built-in.

• Available to change music sensing level by external resistor.

• Music sensing level selection is available with fully electronic control switching built-in.

• Available to change frequency response of music sensor.

• NR-ON/OFF and REC/PB fully electronic control switching built-in.

• Pin compatible of HA12163 series except for 4 and 39 Pins.

*

Dolby is a trademark of Dolby Laboratories Licensing Corporation.

A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.

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