PPRELIMINARY

Ver.1.0

NJW1106

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DOLBY PRO LOGIC SURROUND DECODER

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n GENERAL DESCRIPTION

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n PACKAGE OUTLINE

The NJW1106 is a surround processor including all of the

necessary circuits of Dolby Pro Logic Surround decoder and

digital delay.

All of internal statuses are controlled by I

In addition to Dolby Pro Logic Surround function, it

performs easily other surround function such as Hall, Live,

Disco and others.

Dolby and double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

San Francisco, CA94103-4813.USA.

This device is available only to licensees of Dolby Lab.

Licensing and application information may be obtained from Dolby Lab.

Purchase of I2C components of New Japan Radio Co., Ltd. or one of its sublicensed Associated

Companies conveys a license under the Philips I2C Patent Rights to use these components in an

I2C system, provided that the system conforms to the I2C Standard Specification as defined by

Philips.

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n FEATURES

l Digital Delay on chip

l I

SDA, SCL

l Bi-CMOS Technology

l Package Outline

QFP80, QFP100

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n FUNCTION

[Dolby Pro Logic Surround]

l Automatic input balance

l Noise sequencer

l Adaptive matrix

l Center channel control (Wide, 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.)

[Other Surround]

l Surround Signal Selector

(L+R, L-R, EXTIN)

l Front mixing control

l Digital time delay

(15,20,25,30,40,50,60msec.)

[Other Function]

l Digital auxiliary outputs

(AUX0-AUX7)

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n SYSTEM BLOCK DIAGRAM

EXTIN

7KHz

LPF

SW. Controller

ADD/SUB

L+R

L-R

Center Mode

Modified

BNR

I

Delay

Input Autobalance

Noise Sequencer

Adaptive Matrix

RIN

LOUT

COUT

ROUT

SOUT

LIN

NJW1106FC2-80

NJW1106FC2