HA12204NT

更新时间： 2024-09-27 22:51:11

品牌	Logo	应用领域
日立 - HITACHI		消费电路商用集成电路光电二极管
页数	文件大小	规格书
97页	682K
描述
Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

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HA12204NT 数据手册

HA12203NT/HA12204NT

Audio Signal Processor for Cassette Deck

(Dolby B-type NR with Recording System)

ADE-207-222B

Target Specification

3rd Edition

Jun. 1999

Description

HA12203NT is silicon monolithic bipolar IC providing Dolby noise reduction system*¹, music sensor

system, REC equalizer system and each electronic control switch in one chip.

Note: 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.

Functions

•

Dolby B - NR*²× 2 channel

REC equalizer × 2 channel

Music sensor

Pass amp.

× 1 channel

× 2 channel

Each electronic control switch to change REC equalizer, bias, etc.

Note: 2. HA12204NT is not built-in Dolby noise reduction system.

Features

•

REC equalizer is very small number of external parts and have 6 types of frequency characteristics

built-in.*³

•

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 signal output available from recording out terminals during PB mode.

•

Provide stable music sensor system, available to design music sensing time and level.

Controllable from direct micro-computer output.

Bias oscillator control switch built-in.

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

Normal-speed / high-speed, Normal / Crom / Metal*³and PB equalizer fully electronic control

switching built-in.

•

Available to reduce substrate-area because of high integration and small external parts.

12 3 4 5 6 7...97

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