BH3541F Datasheet, PDF (1/8 Pages) Rohm – Headphone amplifier for CD-ROMs

Optical disc ICs
BH3541F / BH3544F
Headphone amplifier for CD-ROMs
BH3541F / BH3544F
The BH3541F and BH3544F are digital-source dual headphone amplifiers. The BH3541F has a fixed gain of 0dB and
the BH3544F has a fixed gain of 6dB so that external gain setting is unnecessary. Both the BH3541F and BH3544F have
internal mute functions so that prevention of the popping sound when power is turned on and off is greatly simplified.
Also, these ICs are equipped with thermal shutdown circuits to prevent damage from short circuits.
Product name
Fixed gain
BH3541F
0dB
BH3544F
6dB
!Applications
Devices that use the headphone output from CD-ROMs, CDs, MDs, personal computers, notebook computers,
camcorders, etc.
!Features
1) Internal mute function to prevent popping sounds when the power is turned on and off.
2) Built-in thermal shutdown circuit (150°C) to prevent damage to the IC if a short circuit occurs.
3) Compact SOP8 pin package.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Applied voltage
Power dissipation
Operating temperature
VMax
7.0
V
Pd
450 ∗
mW
Topr
−25 ~ +75
°C
Storage temperature
Tstg
−55 ~ +125
°C
∗Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.
!Recommended operating conditions (Ta = 25°C)
Parameter
Power supply voltage
Symbol Min. Typ. Max. Unit
VCC
2.8
−
6.5
V