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LM1112B Datasheet

Part Number LM1112B
Manufacturers National Semiconductor
Logo National Semiconductor
Description Dolby B-Type Noise Reduction Processor
Datasheet LM1112B DatasheetLM1112B Datasheet (PDF)

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor 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 system It is a replacement for the LM1111 and the Signetics NE645 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 matc.

  LM1112B   LM1112B






Part Number LM1112C
Manufacturers National Semiconductor
Logo National Semiconductor
Description Dolby B-Type Noise Reduction Processor
Datasheet LM1112B DatasheetLM1112C Datasheet (PDF)

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor 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 system It is a replacement for the LM1111 and the Signetics NE645 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 matc.

  LM1112B   LM1112B







Part Number LM1112A
Manufacturers National Semiconductor
Logo National Semiconductor
Description Dolby B-Type Noise Reduction Processor
Datasheet LM1112B DatasheetLM1112A Datasheet (PDF)

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor 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 system It is a replacement for the LM1111 and the Signetics NE645 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 matc.

  LM1112B   LM1112B







Part Number LM1112
Manufacturers National Semiconductor
Logo National Semiconductor
Description Dolby B-Type Noise Reduction Processor
Datasheet LM1112B DatasheetLM1112 Datasheet (PDF)

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor 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 system It is a replacement for the LM1111 and the Signetics NE645 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 matc.

  LM1112B   LM1112B







Dolby B-Type Noise Reduction Processor

LM1112A LM1112B LM1112C Dolby B-Type Noise Reduction Processor 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 system It is a replacement for the LM1111 and the Signetics NE645 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 Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 24V Operating Temperature Range b20 C to a70 C Storage Temperature Range b65 C to a150 C Lead Temperature (Soldering 10 sec ) 260 C Electrical Characteristics VS e 12V TA e 25 C 0 dB refers to Dolb.


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