BH3544F_12 Datasheet, PDF (1/12 Pages) Rohm – Standard Headphone Amplifiers

Headphone Amplifiers
Standard
Headphone Amplifiers
BH3544F,BH3547F,BH3548F
No.15102EDT02
●Description
BH3544F, BH3547F, BH3548F are headphone amplifiers suitable for portable products. BH3544F, BH3547F, BH3548F has
a fixed gain of 6 dB. External resistors for gain setting are not needed. Package of BH3544F, BH3547F, BH3548F is
pin-to-pin compatible (SOP8), enable to replace each other easily.
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.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) 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
BH3544F
BH3547F
+2.8 ～ +6.5
+4.5 ～ +6.5
7.0
3.7
6
62
77
16 / 32
-25 ～ +75
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
BH3544F,BH3547F,BH3548F
Applied voltage
Power dissipation
VCC
Pd
7.0
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
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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2015.06 - Rev.D