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HA12179F - Audio Signal Processer

General Description

HA12179F is silicon monolithic bipolar IC providing Dolby noise reduction system

, line mute, music sensor and PB equalizer system in one chip.

Line mute PB equalizer Dolby B-NR Music sensor × 2 channel × 2 channel × 2 channel × 1 channel Featu

Key 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.