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NJW1130A

PPRELIMINARY

SOUND PROCESSOR with SOUND ENHANCEMENT

s

GENERAL DESCRIPTION

The

NJW1130A

is a sound processor with sound

enhancement (BBE). It includes all of functions processing

audio signal for TV, such as tone control, balance, volume,

mute, and AGC functions.

Also the

NJW1130A

performs surround and sound

enhancement. The sound enhancement regenerates high

definitive and nearly real sound.

2

All of internal status and variables are controlled by I C

BUS interface.

s

PACKAGE OUTLINE

NJW1130G

s

FEATURES

q

Operating Voltage

(8 to 13V)

2

q

I C BUS Interface

q

BBE Sound Enhancement

(Low Boost and High Boost: 15dB max.)

q

Internal 6 Input Audio Selectors and Monitor Output

q

The AGC circuit reduces volume difference among input sources.

q

Matrix Surround

q

Bi-CMOS Technology

q

Package Outline

SOP40

s

BLOCK DIAGRAM

BBE BBE

2a

MON a AGC1 1a

PS

TONE TONE

Ha

La

OUTa

LINEa

IN1a

IN2a

IN3a

IN4a

IN5a

IN6a

IN1b

IN2b

IN3b

IN4b

IN5b

IN6b

MON b

AGC2 BBE BBE

2b

1b

TONE TONE

Lb

Hb

OUTb

Input

Selector

Input

Selector

4.5dB

CVA

CVB

BBE

Volume

Tone

Volume

CTH

CTL

Control

Logic

AGC

Surround

AUX0

AUX1

SDA

SCL

BBE

Volume

Tone

Volume

GND

Bias

4.5dB

VCC

LINEb

Vref

Ver.2.0

-1-

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