Datasheet > HA12155NT/HA12157NT

HA12155NT/HA12157NT

更新时间： 2022-01-19 01:53:00

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HA12155NT/HA12157NT 数据手册

HA12155NT/HA12157NT

Audio Signal Processor for Cassette Deck (Dolby B/C-type NR

with Recording System)

ADE-207-115C (Z)

4th Edition

June 1997

Description

HA12155NT/HA12157NT is silicon monolithic bipolar IC providing Dolby noise reduction system*,

electrical volume system, REC equalizer system and level meter system in one chip.

Functions

•

REC equalizer

Dolby B/C NR

Electronic volume

Level Meter

× 2 channel

Features

•

Inductor less REC equalizer is adjustable of its characteristics by external resistor

Rec level is adjustable automatically with electrical volume which is built-in

3 type of input selection is available (one is by way of electrical volume)

Separate input selection SW and REC/PB SW

Dolby noise reduction with dubbing cassette decks

(Unprocessed signal output available from recording out terminals during PB mode)

Log-compressed level meter output is range from 0 V to 5 V

•

(Usable as music search switchable gain of 0 dB and 20 dB respectivily)

Normal-speed/high-speed (Double), normal/metal/chrome fully electronic control switching built-in

NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in

(Controllable from micro-controller directly)

•

Reduction of number of pin by transfered serial data to electronic volume control switching and another

control switching

(Controllable from micro-controller directly)

Low external parts count

12 3 4 5 6 7...57

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型号	品牌	描述	获取价格	数据表
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