LM1894 Datasheet | Texas Instruments

.ti. SNAS551C - DECEMBER 1994 - REVISED APRIL 2013 LM1894 Dynamic Noise Reduction System DNR Check for Samples: LM1894 Features - 2 Non-plementary Noise Reduction, “Single Ended” - Low Cost External ponents, No Critical Matching - patible with All Prerecorded Tapes and FM - 10 dB Effective Tape Noise Reduction CCIR/ARM Weighted - Wide Supply Range, 4.5V to 18V - 1 Vrms Input Overload DESCRIPTION The LM1894 is a stereo noise reduction circuit for use with audio playback systems. The DNR system is non-plementary, meaning it does not require encoded source material. The system is patible with virtually all prerecorded tapes and FM broadcasts. Psychoacoustic...