bh3543f ROHM Co. Ltd., bh3543f Datasheet

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bh3543f

Manufacturer Part Number
bh3543f
Description
Headphone Amplifier Cd-roms
Manufacturer
ROHM Co. Ltd.
Datasheet

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Part Number
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Part Number:
bh3543f-E2
Manufacturer:
RHOM
Quantity:
20 000
The BH3541F and BH3543F are digital-source dual headphone amplifiers. The BH3541F has a fixed gain of 0dB and
the BH3543F has a fixed gain of 6dB so that external gain setting is unnecessary. Both the BH3541F and BH3543F have
internal mute functions so that prevention of the popping sound when the power is turned on and off is greatly simplified.
Also, these ICs are equipped with thermal shutdown circuits to prevent damage from short circuits.
FApplications
Devices that use the headphone output from CD-ROMs, CDs, MDs, personal computers, notebook computers, cam-
corders, etc.
FFeatures
1) Internal mute function to prevent popping sounds
2) Built-in thermal shutdown circuit (150_C) to prevent
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
Headphone amplifier for CD-ROMs
BH3541F / BH3543F
Optical disc ICs
when the power is turned on and off.
damage to the IC if a short circuit occurs.
3) Compact SOP8 pin package.
561

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bh3543f Summary of contents

Page 1

... The BH3541F and BH3543F are digital-source dual headphone amplifiers. The BH3541F has a fixed gain of 0dB and the BH3543F has a fixed gain of 6dB so that external gain setting is unnecessary. Both the BH3541F and BH3543F have internal mute functions so that prevention of the popping sound when the power is turned on and off is greatly simplified. ...

Page 2

... Optical disc ICs FBlock diagram 562 BH3541F / BH3543F ...

Page 3

... Optical disc ICs FPin descriptions BH3541F / BH3543F 563 ...

Page 4

... Optical disc ICs FElectrical characteristics (unless otherwise noted 25_C, V BH3543F: V FMeasurement circuit 564 = 5.0V –6dBV, and f = 1kHz) IN BH3541F / BH3543F = 32 , BF3541F 0dBV ...

Page 5

... Optical disc ICs FMeasurement conditions FCircuit operation Rising edge timing BH3541F / BH3543F 565 ...

Page 6

... Also, for use with different circuit constants for the exter- nal circuits, be sure to leave a sufficient margin for fluc- tuations in characteristics in the external components and ROHM ICs in not only the static characteristics, but also the transient characteristics as well. BH3541F / BH3543F (assuming that for output ...

Page 7

... Optical disc ICs FElectrical characteristics curves BH3541F / BH3543F 567 ...

Page 8

... Optical disc ICs FExternal dimensions (Units: mm) 568 BH3541F / BH3543F ...

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