Datasheet > HA12157NT

HA12157NT

更新时间： 2024-02-07 08:25:25

品牌	Logo	应用领域
日立 - HITACHI		/
页数	文件大小	规格书
57页	462K
描述
Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)

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技术参数
数据手册

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HA12157NT 技术参数

生命周期：	Transferred	零件包装代码：	DIP
包装说明：	SDIP, SDIP64,.75	针数：	64
Reach Compliance Code：	unknown	风险等级：	5.06
商用集成电路类型：	DOLBY NOISE REDUCTION IC	JESD-30 代码：	R-PDIP-T64
长度：	57.6 mm	端子数量：	64
最高工作温度：	70 °C	最低工作温度：	-30 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SDIP
封装等效代码：	SDIP64,.75	封装形状：	RECTANGULAR
封装形式：	IN-LINE, SHRINK PITCH	电源：	14 V
认证状态：	Not Qualified	座面最大高度：	5.08 mm
子类别：	Other Consumer ICs	最大压摆率：	37 mA
表面贴装：	NO	技术：	BIPOLAR
温度等级：	OTHER	端子形式：	THROUGH-HOLE
端子节距：	1.778 mm	端子位置：	DUAL
宽度：	19.05 mm	Base Number Matches：	1

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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