Sound Processors for Home Theater Systems

The growing popularity of high-definition large-screen TVs, such as plasma, DLP, and LCD sets, makes it necessary to improve the sound quality in order to complement the high quality images. ROHM offers a lineup of sound processors with Hi-Fi audio technology and multi-function capability, ensuring compatibility with a broad range of applications.


2ch/ 6ch Electronic Volume

Part No.

Supply
voltage
(V)

Circuit current
(mA)

Output noise
(µVrms)

Max. output
(Vms)

Distortion
(%)

Selector

Input gain

Output gain

Volume

Number of volume

Tone

Bass boost

Serial control

Package

RoHS

BD3812F

±5.0 to
±7.3

±2

1.2

4.2

0.005

-

-

0,6 to 18dB
2dB/step

0 to
-103dB
1dB/step

2

-

-

2wire

SOP14

Yes

BD3814FV

±5.0 to
±7.3

±7

1

4.3

0.001

-

-

-

0 to
-95dB
1dB/step

6

BASS,
TREBLE

-

2wire

SSOP-B40

Yes

5.1ch Sound Processors

Part No.

Supply
voltage
(V)

Circuit current
(mA)

Output noise
(µVrms)

Max. output
(Vrms)

Distortion
(%)

Selector

Input gain

Output gain

Volume

Number of volume

Tone

Bass boost

Serial control

Package

RoHS

BD3813KS

±5.0 to
±7.3

±10

1.5

4.2

0.004

-

0,6,12dB

-

0 to
-95dB
1dB/step

6

BASS,
TREBLE

-

2wire

SQFP56

Yes

BD3815KS

±5.0 to
±7.3

±10

1.5

4.2

0.004

-

0,6,18dB

-

0 to
-95dB
1dB/step

6

BASS,
TREBLE

-

2wire

SQFP56

Yes

BD3811K1

±5.0 to
±7.3

±15

2

4.2

0.005

8

0,6dB

0,6
to
18dB
2dB
/
step

0 to
-103dB
1dB
/
step

6

BASS,
TREBLE

Ö

2wire

QFP80

Yes

BD3818KS

±5.0 to
±7.4

±28

3.8

4.3

0.002

5

0,3,6,9dB

-

0 to
-95dB
1dB
/
step

6

BASS,
TREBLE

(Dynamic)

2wire

SQFP80

Yes

6.1ch/ 7.1ch Sound Processors

Part No.

Supply
voltage
(V)

Circuit current
(mA)

Output noise
(µVrms)

Max. output
(Vrms)

Distortion
(%)

Selector

Input gain

Output gain

Volume

Number of volume

Tone

Bass boost

Serial control

Package

RoHS

BD3816K1

±5.0 to
±7.3

±24

1.2

4.2

0.001

7

0 to 7dB
1dB/step

0 to 17dB
1dB/step

0 to
-95dB
1dB/step

7

BASS,
TREBLE

-

2wire

QFP80

Yes

BD3817KS

±5.0 to
±7.3

±24

1.2

4.2

0.001

10

0 to 7dB
1dB/step

0 to 17dB
1dB/step

0 to
-95dB
1dB/step

7

BASS,
TREBLE

-

2wire

SQFP100

Yes

BD3452KS

±6.5 to
±7.3

±20

1.4

4.2

0.0006

9

0,6,12dB

0 to 15dB
1dB/step

0 to
-99dB
1dB/step

8

-

-

2wire

SQFP100

Yes

6ch/9ch Stereo Input Selectors (4.2V max. input)

Part No.

Supply voltage
(V)

Circuit current
(mA)

Output noise
(µVrms)

Max. output
(Vrms)

Distortion (%)

Selector

Serial control

Package

RoHS

BD3843FS

±4.0 to ±7.3

±3

1

4.2

0.004

6

2wire

SSOP-A24

Yes

BD3841FS

±5.0 to ±7.3

±3

1

4.2

0.004

9

2wire

SSOP-A32

Yes