HA12229F

更新时间： 2024-10-01 22:34:23

品牌	Logo	应用领域
日立 - HITACHI		消费电路商用集成电路放大器
页数	文件大小	规格书
51页	304K
描述
Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.)

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HA12229F 数据手册

HA12228F/HA12229F

Audio Signal Processor for Car Deck

(Decode only Dolby B-type NR* with PB Amp.)

ADE-207-325A

2nd Edition

Dec. 2000

Description

HA12228F/HA12229F are silicon monolithic bipolar IC providing Dolby noise reduction system*, music

sensor, PB equalizer system in one chip.

Notes: 1. Dolby is a trademark of Dolby Laboratories Licensing Corporation.

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

2. HA12229F is not built-in Dolby B-NR.

Functions

•

PB equalizer

Music sensor

× 2 channel

× 1 channel

Dolby B-NR (Only HA12228F) × 2 channel

Line mute SW × 2 channel

Features

•

Different type of PB equalizer characteristics selection (120 µs/70 µs) is available with fully electronic

control switching built-in.

•

Easy interface with the PB head. (The PB-EQ resistance self-containing)

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

Available to change music sensing level by external resistor.

Available to change response of music sensor by external capacitor.

Music sensing level, built-in switch to change a band (MSG_V).

NR ON/OFF fully electronic control switching built-in. (Only HA12228F)

Line mute control switching built-in.

Available to connect direct with MPU.

These ICs are strong for a cellular phone noise.

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