HA12157NT - Audio Signal Processor

Product Overview

Hitachi Semiconductor

Datasheet Details

Part number	HA12157NT
Manufacturer	Hitachi Semiconductor
File Size	463.26 KB
Description	Audio Signal Processor
Datasheet	HA12157NT Datasheet
Additional preview pages of the HA12157NT datasheet.

Product details

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. 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 mete.

📁 Similar Datasheet

HA1215 - Crystal Clock Oscillators (NEL Frequency Controls)
HA12151MA - Dolby-B and C-Type Noise Reduction (Hitachi)
HA12153MA - Dolby-B and C-Type Noise Reduction (Hitachi)
HA12159 - FM IF System (Hitachi)
HA1210 - (HA121x) Crystal Clock Oscillators (NEL Frequency)
HA1211 - (HA121x) Crystal Clock Oscillators (NEL Frequency)
HA1217 - (HA121x) Crystal Clock Oscillators (NEL Frequency)
HA1219 - (HA121x) Crystal Clock Oscillators (NEL Frequency)

Other Datasheets by Hitachi Semiconductor

HA12155NT - Audio Signal Processor
HA12133MP - EQUALLZER IC
HA12134A - Dolby B-Type Noise Reduction
HA12135A - Dolby B-Type Noise Reduction
HA12136A - Dolby B-Type Noise Reduction
HA12141NT - Dolby B- and C-Type Noise Reduction

Published: Mar 22, 2005 |