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NJW1132AL

AUDIO PROCESSOR with SOUND ENHANCEMENT

Japan Radio Corporation  

NJW1132A

PRELIMINARY

AUDIO PROCESSOR with SOUND ENHANCEMENT

s GENERAL DESCRIPTION

The NJW1132A 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 NJW1132A performs surround and sound

enhancement. The sound enhancement regenerates high

definitive and nearly real sound.

All of internal status and variables are controlled by I2C

BUS interface.

s PACKAGE OUTLINE

NJW1132AL

NJW1132AM

s FEATURES

q Operating Voltage

8 to 13V

q I2C BUS Interface

q BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)

q AGC Circuit (It reduces volume difference among input sources.)

q Matrix Surround

q Bi-CMOS Technology

q Package Outline

SDIP30, SDMP30

s BLOCK DIAGRAM

AGC1

BBE BBE BBETONETONE TONE

1a 2a OUTa INa –Ha –La PS

OUTa

IN a

Volume

1

BBE

AGC

IN b

Volume

1

BBE

Tone

Volume

2

Surround

Tone

Volume

2

Control

Logic

Bias

CTH

CTL

CVA

CVB

AUX0

AUX1

SDA

SCL

GND

VCC

AGC2

BBE BBE BBETONETONE TONE

1b 2b OUTb INb –Hb –Lb

OUTb Vref

-1-

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