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Hitachi Semiconductor - Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp)

Numéro de référence HA12177
Description Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp)
Fabricant Hitachi Semiconductor 
Logo Hitachi Semiconductor 





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HA12177 fiche technique
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 channel
× 1 channel
Features
Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully
electronic control switching built-in.
2 type of input selection (RADIO/TAPE) is available.
Changeable to Forward, 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.
4 type of PB-out level.
Available to allow common PCB designs with HA12163 series.
* 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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