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Rohm Semiconductor Electronic Components Datasheet

BH3541F Datasheet

Standard Headphone Amplifiers

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BH3541F pdf
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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 16/32load, BH3548F can drive 8/16/32. So, BH3548F is suitable for 8
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=16]
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
+4.0 +5.5
6.5
62
8/16/32
-40 +85
Unit
V
mA
dB
mW
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
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/8
2010.05 - Rev.A


Rohm Semiconductor Electronic Components Datasheet

BH3541F Datasheet

Standard Headphone Amplifiers

No Preview Available !

BH3541F pdf
BH3541F,BH3544F,BH3547F,BH3548F
Technical Note
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Electrical characteristics (Unless otherwise noted, Ta=25°C,VCC=5V,RL=32,f=1kHz,BW=40030kHz
BH3541F : VIN=0dBV, BH3544F, BH3547F, BH3548F : VIN =-6dBV)
Parameter
Symbol
Limits(TYP.)
BH3541F BH3544F BH3547F
BH3548F
Unit
Conditions
Quiescent current IQ 7 3.7 6.5 mA VIN=0Vrms
Mute pin control voltage H VTMH
1.6<
V Mute OFF
Mute pin control voltage L VTML
<0.3
V Mute ON
Gain
Gain difference between
channels
Total harmonic distortion
GVC
ΔGVC
THD
Rated output 1
PO1
Rated output 2
Rated output 3
Output noise voltage
PO2
PO3
VNO
0
0.02
31
6
0
0.05
46
62 77
-
-93
dB -
dB -
0.02 % BW=2020kHz
RL=32,THD<0.1%
31
mW
(BH3541F,BH3544F,BH3548F)
RL=32,THD0.3%
(BH3547F)
RL=16,THD<0.1%
62
mW
(BH3541F,BH3544F,BH3548F)
RL=16,THD0.5%
(BH3547F)
120
mW
RL=8,THD0.25%
(BH3548F)
dBV BW=2020kHz,Rg=0
Channel separation
CS
-90
-87 -90 dB Rg=0
Mute attenuation
ATT
-80
dB Rg=0
Ripple rejection
RR
-57
dB fRR=100Hz,VRR=-20dBV
Input resistance
Rin 180
90 k
-
Reference data
BH3541F/BH3544F
BH3541F/BH3544F
BH3541F/BH3544F
Fig. 1 Quiescent current vs.
power supply voltage
Fig. 2 in DC current vs.
power supply voltage
Fig. 3 Output voltage vs.
Mute control voltage
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/8
2010.05 - Rev.A


Part Number BH3541F
Description Standard Headphone Amplifiers
Maker Rohm
Total Page 9 Pages
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