參數(shù)資料
型號(hào)： HA12157NT
廠商： Hitachi,Ltd.
英文描述： Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
中文描述： 音頻信號(hào)處理器（杜比B / C型與錄音系統(tǒng)星期日的盒式收錄機(jī)）
文件頁(yè)數(shù)： 1/57頁(yè)
文件大?。?/td> 463K
代理商： HA12157NT
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
×
2 channel
×
2 channel
×
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
相關(guān)PDF資料
PDF描述
HA12155 Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12160 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
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HA12164 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
HA12165 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
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