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 [R
L
=16Ω]
load impedance
Operating temperature range
●Absolute
maximum ratings(Ta=25°C)
Parameter
Applied voltage
Power dissipation
Storage temperature
*1
BH3541F
BH3544F
BH3547F
+4.5
�½�
+5.5
3.7
6
77
BH3548F
+4.0
�½�
+5.5
6.5
62
8/16/32
-40
�½�
+85
Unit
V
mA
dB
mW
Ω
℃
+2.8
�½�
+6.5
7.0
0
62
16 / 32
-25
�½�
+75
Symbol
VCC
Pd
Tstg
Ratings
BH3541F,BH3544F,BH3547F,BH3548F
7.0
550
*1
-55�½�+125
Unit
V
mW
°C
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
Supply voltage
Temperature Range
Symbol
VCC
Topr
Limits
BH3541F,BH3544F
+2.8
�½�
+6.5
-25�½�+75
BH3547F
+4.5
�½�
+6.5
BH3548F
+4.0
�½�
+5.5
-40
�½�
+85
Unit
V
℃
* These product are not designed for protection against radioactive rays.
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2010.05 - Rev.A
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