NJW1104 - New Japan Radio

NJW1104 DOLBY PRO LOGIC SURROUND DECODER

The NJW1104 is a surround processor including all of the necessary circuits of Dolby Pro Logic Surround decoder and digital delay. In addition to Dolby Pro Logic Surround function, it performs easily other surround function such as Hall, Live, Disco and others. n PACKAGE OUTLINE NJW1104FC2-80 Dolby and double-D symbol are trademarks of Dolby Laboratories Li.

Features

l Operating Voltage : VCC=10V(Analog Block), VDD=5V(Digital Block) l Digital Delay on chip l Serial Data Interface(3-wire) DATA, REQ, SCK l Bi-CMOS Technology l Package Outline QFP80, QFP100 n FUNCTION [Dolby Pro Logic Surround] l Automatic input balance l Noise sequencer l Adaptive matrix l Center channel control (Wide band, Normal, Phantom, Off) l Modified B-type noise reduction l 7kHz low-pass filter l Dolby 3 stereo mode l Digital time delay(15,20,25,30msec.) n SYSTEM BLOCK DIAGRAM [Other Surround] l Surround Signal Selector (L+R, L-R, EXTIN) l Front mixing control l Digital time delay (1.