NJW1145GK1 Datasheet

IC型號：
NJW1145GK1
PDF描述：
AUDIO PROCESSOR
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565.43KB
PDF頁數(shù)：
24頁
芯片廠家：
NJRC

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NJW1145

AUDIO PROCESSOR

GENERAL DESCRIPTION

PACKAGE OUTLINE

The

NJW1145

is a audio processor with sound

enhancement (BBE). It includes all of the functions

processing audio signal for TV, such as tone control,

balance, volume, mute, and AGC functions.

Also the

NJW1145

performs surround and sound

enhancement. The sound enhancement regenerates high

definitive and nearly real sound.

All of the internal status and variables are controlled by

NJW1145GK1

I C BUS interface.

FEATURES

Operating Voltage

8 to 13V

I C BUS Interface

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

Internal 6 Input Audio Selectors and Monitor Output

The AGC circuit reduces volume difference among input sources.

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

NJRC Surround "eala" and Simulated Surround

Variable Surround Effect Level via I C

Low Noise VCA

Bi-CMOS Technology

Package Outline

SOP40-K1

BLOCK DIAGRAM

MONa

AGC

TONE TONE

-Ha

-La

OUTa

-2dB

+4.5dB

IN1a

IN2a

IN3a

IN4a

IN5a

IN6a

SDA

SCL

CVA

CVB

CTH

CTL

CSR

CSB

SEL

VOL1

NJRC

Surrond

鈥渆ala鈥?/div>

Sim ulated

Stereo

VOL1

-2dB

BBE

TONE

VOL2

I C BUS

Interface

AGC

IN1b

IN2b

IN3b

IN4b

IN5b

IN6b

SEL

BBE

TONE

VOL2

Bias

GND

Vcc

+4.5dB

MONb

TONE TONE

-Hb

-Lb

OUTb

Vref

-1-

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