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

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 NE-
645/648 but with improved performance figures.