BH3541F / BH3544F

Optical disc ICs

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!

!

!Operation notes

The application example is recommended by ROHM, but before use in your application, be sure to carefully confirm

electrical characteristics.

Also, for use with different circuit constants for the external circuits, be sure to leave a sufficient margin for fluctuations in

characteristics in the external components and ROHM ICs in not only the static characteristics, but also the transient

characteristics as well.

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!

!

!Electrical characteristic curves

0

SUPPLY VOLTAGE :

Fig.3

Quiescent current vs.

power supply voltage

2

04

2

68

10

5

10

1

3

4

6

7

8

9

MUTE : OFF

MUTE : ON

Ta

=25

°C

=32Ω

00

SUPPLY VOLTAGE :

Fig.4

Pin DC current vs.

power supply voltage

2

04

1

68

10

5

2

3

4

1

5

2

3

4

Ta

=25

°C

=32Ω

−90

MUTE CONTROL VOLTAGE : VTM (V)

Fig.5

Output voltage vs.

MUTE control voltage

0.4

0

0.8

−70

1.2

1.6

2

−40

10

−80

−60

−50

−30

−20

−10

0

Ta

=25

°C

=32Ω

=5V

=0dBV

f

=1kHz

10

−12

FREQUENCY :

−8

8

Fig.6

Voltage gain vs. frequency

100

1k

10k

−10

100k

−6

−4

−2

0

2

4

6

BH3544F

BH3541F

Ta

=25

°C

=32Ω

=0dBV

=5V

−40

0.001

OUTPUT VOLTAGE :

0.01

10

−30

−20

−10

10

0.1

1

0

f

f

f

Ta

=25

°C

=32Ω

=5V

Fig.7

Total harmonic distortion vs.

output voltage ( )

−40

0.001

OUTPUT VOLTAGE

0.01

10

−30

−20

−10

10

0.1

1

0

f

f

f

Ta

=25

°C

=32Ω

=3V

Fig.8 Total harmonic distortion vs.

output voltage ( )