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Numéro de référence | LM1112B | ||
Description | Dolby B-Type Noise Reduction Processor | ||
Fabricant | National Semiconductor | ||
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1 Page
LM1112A LM1112B LM1112C
Dolby B-Type Noise Reduction Processor
April 1987
General Description
The LM1112 is a monolithic integrated circuit specifically
designed to realize the Dolby B-type noise reduction sys-
tem
It is a replacement for the LM1111 and the Signetics NE-
645 648 but with improved performance figures
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 application information must be obtained
Dolby and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation
Schematic Diagram
C1995 National Semiconductor Corporation TL H 7876
TL H 7876 – 1
RRD-B30M115 Printed in U S A
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Pages | Pages 8 | ||
Télécharger | [ LM1112B ] |
No | Description détaillée | Fabricant |
LM1112 | Dolby B-Type Noise Reduction Processor | National Semiconductor |
LM1112A | Dolby B-Type Noise Reduction Processor | National Semiconductor |
LM1112B | Dolby B-Type Noise Reduction Processor | National Semiconductor |
LM1112C | Dolby B-Type Noise Reduction Processor | National Semiconductor |
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