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LM1112C Datasheet Dolby B-Type Noise Reduction Processor

Manufacturer: National Semiconductor (now Texas Instruments)

Download the LM1112C datasheet PDF. This datasheet also includes the LM1112 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LM1112_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

General Description

The LM1112 is a monolithic integrated circuit specifically designed to realize the Dolby B-type noise reduction system It is a replacement for the LM1111 and the Signetics NE645 648 but with improved performance figures

Overview

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor April 1987.

Key Features

  • Y Very high signal noise ratio 74 dB encode (CCIR ARM) Y Wide supply voltage range 6V to 20V Y Very close matching to standard Dolby characteristics Y Audible switch-on transients greatly reduced Y Improved temperature performance Y Reduced number of precision external components Y Improved transient stability Y Input protection diodes Available only to licensees of Dolby Laboratories Licensing Corporation San Francisco from whom licensing and.