BH3541F データシートの表示（PDF） - ROHM Semiconductor

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BH3541F

Standard Headphone Amplifiers

ROHM Semiconductor 

Headphone Amplifiers

Standard

Headphone Amplifiers

BH3541F,BH3544F,BH3547F,BH3548F

No.10102EAT02

●Description

BH3541F, BH3544F, BH3547F, BH3548F is headphone amplifiers suitable for portable products.

BH3541F has a fixed gain of 0 dB and BH3544F, BH3547F, BH3548F has a fixed gain of 6 dB.

External resistors for gain setting are not needed. Package of BH3541F, BH3544F, BH3547F, BH3548F is pin-to-pin

compatible (SOP8), enable to replace each other easily.

BH3541F, BH3544F, BH3547F, BH3548F also has mute functions that make it easy to prevent pop noise when power

supply turns on/off. Moreover, thermal shutdown function is built-in.

BH3541F, BH3544F, BH3547F can drive 16/32Ω load, BH3548F can drive 8/16/32Ω. So, BH3548F is suitable for 8Ω

receiver.

●Features

1) Built-in mute function for preventing pop noise when power supply turns on/off

2) Built-in thermal shutdown function

3) BH3541F, BH3544F, BH3547F, BH3548F are pin-to-pin compatible

4) SOP8 small package

●Applications

TV, Desktop PC, Notebook PC, Camcorder and other equipment having headphone output

●Line up

Part No.

Supply voltage

Quiescent current

Amplifier gain

Output [RL=16Ω]

load impedance

Operating temperature range

BH3541F

BH3544F

+2.8 ～ +6.5

7.0

0

62

16 / 32

-25 ～ +75

BH3547F

+4.5 ～ +5.5

3.7

6

77

BH3548F

Unit

+4.0 ～ +5.5

V

6.5

mA

dB

62

mW

8/16/32

Ω

-40 ～ +85

℃

●Absolute maximum ratings(Ta=25°C)

Parameter

Symbol

Ratings

BH3541F,BH3544F,BH3547F,BH3548F

Applied voltage

VCC

7.0

Power dissipation

Pd

550 *1

Storage temperature

Tstg

-55～+125

*1 Derating is done at 5.5mW/°C above Ta=25°C. (When mounted on a 70mm×70mm×1.6mm PCB board, FR4)

●Operating conditions (Ta=25°C)

Parameter

Symbol

BH3541F,BH3544F

Limits

BH3547F

Supply voltage

VCC

+2.8 ～ +6.5

+4.5 ～ +6.5

Temperature Range

Topr

-25～+75

* These product are not designed for protection against radioactive rays.

BH3548F

+4.0 ～ +5.5

-40 ～ +85

Unit

V

mW

°C

Unit

V

℃

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2010.05 - Rev.A

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