NJW1142 Datasheet

IC型號(hào)：
NJW1142
PDF描述：
AUDIO PROCESSOR
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117.23KB
PDF頁數(shù)：
14頁
芯片廠家：
NJRC

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NJW1142

PRELIMINARY

AUDIO PROCESSOR

GENERAL DESCRIPTION

PACKAGE OUTLINE

The

NJW1142

is a sound processor includes all of the

functions required to process the audio signal for TV, such

as tone control, balance, volume, mute, and AGC functions.

Also the

NJW1142

performs eala (NJRC Original

Surround) which is regenerated 3D surround sound with

only two speakers.

All of the internal status and variables are controlled by I C

BUS interface.

NJW1142M

FEATURES

Operating Voltage

8 to 10V

Internal 4 Input Audio Selectors and Monitor Output

Low Noise VCA

eala (NJRC Original Surround System)

Simulated Stereo

Variable AGC Compression Level via I C (4-levels)

Bi-CMOS Technology

Package Outline

SDMP30

BLOCK DIAGRAM

MONa

AGC

TONE TONE

-La

-Ha

OUTa

-2dB

+4.5dB

SDA

SCL

CVA

CVB

I2C BUS

Interface

IN1a

IN2a

IN3a

IN4a

SEL

VOL1

TONE

VOL2

AGC

eala

Sim ulated

Stereo

CTH

CTL

IN1b

IN2b

IN3b

IN4b

SEL

-2dB

VOL1

TONE

VOL2

Bias

GND

Vcc

+4.5dB

MONb

TONETONE

-Hb -Lb

OUTb

Vref

-1鈥?/div>

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