BH3544F-E2 Rohm Semiconductor, BH3544F-E2 Datasheet - Page 4

• Manufacturer Part Number: BH3544F-E2
• Description: IC AMP STEREO HEADPHONE 8SOP
• Manufacturer: Rohm Semiconductor
• Type: Class ABr

Specifications of BH3544F-E2

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 62mW x 2 @ 16 Ohm
• Voltage - Supply: 2.8 V ~ 6.5 V
• Features: Mute, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-SOP
• No. Of Channels: 2
• Supply Voltage Range: 2.8V To 6.5V
• Thd + N: 0.02% @ 32ohm, VDD=5V
• Load Impedance: 16ohm
• Operating Temperature Range: -25°C To +75°C
• Amplifier Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Block diagram
●Measurement circuit
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SW8B
32
16
32
16
V
RR
1
SW7
SW1
1
1
A IQ
2
2
V
2
CC
SWBA
OU T1
V
1AC
1
V CC
TS D
8
V
V
V
CV
330μ
7AC
330μ
10μ
CC
MUTE
MUTE
2
VCC
O UT2
7
8
1
TSD
OUT1
(6d B)
(6d B)
0d B
0 dB
V
OUT2
TM
I N1
Fig. 13
Fig. 14
3
MUTE
4/8
BIA S
B IAS
7
2
6


MUTE
(6dB)
(6dB)
0dB
0dB
( ) are BH3544F, BH3547F, BH3548F values.
BIAS
G ND
BIAS
4
6
3
IN2
( ) are BH3544F, BH3547F, BH3548F values.
5
IN1
R3
(90 k)
180 k
180 k
(9 0k)
47μ
IN2
5
4
180k
(90k)
GND
180k
(90k)
R5
1μ
1μ
1
1
2
2
SW3
SW5
V
V
IN
IN
2
1
Technical Note
2010.05 - Rev.A