bd5445efv ROHM Co. Ltd., bd5445efv Datasheet - Page 27

• Manufacturer Part Number: bd5445efv
• Description: Analog Input / Single End Output Class-d Speaker Amplifier
• Manufacturer: ROHM Co. Ltd.

● Application Circuit Example ( 2.1ch output )
© 2010 ROHM Co., Ltd. All rights reserved.
BD5445EFV
www.rohm.com
Differential
Input
Master (L input)
Slave (H input)
Power down
Power down
R9B
Control
Control
Control
Control
Mute
Mute
22KΩ
220pF
C9B
IN1
IN2
IN1
IN2
Control
Control
3.3μF
10μF
10μF
3.3μF
Gain
Gain
C14
C14
C1
C1
Clock output
Clock input
VCC
VCC
2200pF
C9A
10Ω
10Ω
R1
R1
100μF
100μF
22KΩ
1μF
+
1μF
+
1μF
1μF
R9A
1μF
1μF
C7
C8
C7
C8
C4
C5
C4
C5
10
11
12
13
14
10
11
12
13
14
4
4
1
2
3
5
6
7
8
9
1
2
3
5
6
7
8
9
GNDA
Power down
GNDA
Power down
VCCA
FILA
FILP
Oscillator
VCCA
FILA
FILP
Oscillator
Control
REG_G
Control
REG_G
Control
Control
4step
4step
Amp.
Amp.
Gain
Gain
Gain
Gain
Control
Control
Control
Control
Mute
Mute
High Temperature Protection
High Temperature Protection
Under Voltage Protection
Under Voltage Protection
Output Short Protection
Output Short Protection
Master
Modulator
Modulator
Modulator
Modulator
Slave
PWM
PWM
PWM
PWM
27/31
Driver
Driver
Driver
Driver
1
2
1
2
VCCP1
VCCP1
VCCP2
VCCP2
REG_G
REG_G
REG_G
REG_G
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
4.7μF
4.7μF
C15A
C15A
330pF
330pF
330pF
4.7μF
C25B
C17B
4.7μF
C25B
330pF
C17B
C27A
C27A
VCC
VCC
4.7μF
4.7μF
4.7μF
4.7μF
47μH
47μH
33μH
33μH
15Ω
C24
0.39μF
0.39μF
C19
15Ω
15Ω
C24
C19
R25
R25
15Ω
R17
0.1μF
0.1μF
R17
L25
L17
L25
L17
C25A
C25A
C17A
C17A
470μF
470μF
C15B
470μF
C15B
470μF
C27B
C27B
Technical Note
2010.05 - Rev.B
0.47μF
C17D
470μF
+
+
470μF
C17C
C25C
8Ω
8Ω
8Ω