|
BH3541F_09 Datasheet, PDF (1/9 Pages) Rohm – Stereo Headphone Amplifiers | |||
|
Speaker / Headphone Amplifier Series
Stereo Headphone
Amplifiers
BH3541F, BH3544F, BH3547F, BH3548F
No.09077EAT01
âDescription
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 16/32⦠load, BH3548F can drive 8/16/32â¦. So, BH3548F is suitable for 8â¦
receiver.
âFeatures
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
âApplications
TV, Desktop PC, Notebook PC, Camcorder and other equipment having headphone output
âLine up
Part No.
Supply voltage
Quiescent current
Amplifier gain
Output [RL=16â¦]
load impedance
Operating temperature range
BH3541F
BH3544F
BH3547F
BH3548F
Unit
+2.8 ï½ +6.5
+4.5 ï½ +5.5 +4.0 ï½ +5.5
V
7.0
3.7
6.5
mA
0
6
dB
62
77
62
mW
16 / 32
8/16/32
â¦
-25 ï½ +75
-40 ï½ +85
â
âAbsolute maximum ratingsï¼Ta=25°Cï¼
Parameter
Symbol
Limit
BH3541F,BH3544F,BH3547F,BH3548F
Unit
Applied voltage
Power dissipation
VCC
Pd
7.0
V
550 *1
mW
Storage temperature
Tstg
-55ï½+125
°C
*1 Derating is done at 5.5mW/°C above Ta=25°C. (When mounted on a 70mmÃ70mmÃ1.6mm PCB board, FR4)
âOperating conditions (Ta=25°C)
Parameter
Symbol
BH3541F,BH3544F
BH3547F
BH3548F
Unit
Supply voltage
VCC
+2.8 ï½ +6.5
+4.5 ï½ +6.5 +4.0 ï½ +5.5
V
Temperature Range
Topr
-25ï½+75
-40 ï½ +85
â
ï¼ These product are not designed for protection against radioactive rays.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/8
2009.07 - Rev.A
|
▷ |