NJW1143 データシートの表示（PDF） - Japan Radio Corporation

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NJW1143

AUDIO PROCESSOR

Japan Radio Corporation  

NJW1143

s I2C CONTROL COMMAND DESCRIPTION

qMASTER VOLUME CONTROL

Select

BIT

Address

D7

D6

D5

D4

D3

D2

D1

D0

00H

VOL

The volume controls both Ach and Bch by the 0.5dB step.

The volume is consisted of volume1 and volume2. The level is divided into half to each volume1 and

volume2.

qBALANCE, AGC AND INPUT SELECTOR SETTINGS

Select

BIT

Address

D7

D6

D5

D4

D3

D2

D1

D0

01H

CHS

BAL

SUR

•CHS: Channel select for balance control

“0”: Ach “Bch is attenuated”

“1”: Bch “Ach is attenuated”

•BAL: Balance control for both Ach and Bch (1dB/Step)

The balance is consisted of volume2 alone. Volume1 does not operate on balance.

•SUR : Surround Setting

Surround Setting

SUR

D1

D0

Remarks

Surround OFF

0

0

Input through

Simulated Stereo mode

0

1

For monaural signal input only

"eala" High mode

1

0

Surround Effect Small ( 8.0dB typ. )

"eala" Low mode

1

1

Surround Effect Large (12.0dB typ. )

qTONE CONTROL (Bass) and AGC SETTINGS

Select

BIT

Address

D7

D6

D5

D4

D3

02H

BCB

BASS

D2

AGC-SW

D1

D0

AGC-FLAT

•BCB : Bass Boost or Cut

“0” : Cut

“1” : Boost

•BASS : BASS Level

Cut Level : -15 to 0dB(1dB/Step)

Boost Level : 0 to +15dB(1dB/Step)

•AGC-SW : AGC ON/OFF Switch

“0” : AGC OFF

“1” : AGC ON (Default : 100mVrms)

•AGC-FLAT : AGC Flat Level

AGC Flat Level

AGC-FLAT

D1

D0

100mVrms

0

0

200mVrms

0

1

300mVrms

1

0

400mVrms

1

1

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