BD5444EFV Datasheet, PDF (25/32 Pages) Rohm – Analog Input / Single End Output Class-D Speaker Amplifier

BD5445EFV
●Application Circuit Example ( BTL output )
Technical Note
VCC
R1
10Ω
C1
10μF
1
2
Gain
Control
3
IN1
IN2
Differential
Input
4
C4
1μF
5
C5
1μF
6
VCCA
Gain
Control
4step
Gain
Amp.
GNDA
PWM
Modulator
C27A
4.7μF
C27B
470μF
VCCP1
28
Driver
1
27
C25B
26 ^330pF
R25
15Ω
L25
33μH
25
REG_G
24
23
C24
4.7μF
C25A
0.1μF
Power down
Control
Mute
Control
CLK/IO
Master/Slave
7
C7
1μF
+
8
C8
100μF
9
R9A
22KΩ
10
11
12
13
FILA
FILP
Power down
Control
Mute
Control
Oscillator
Control
PWM
Modulator
22
C17D
0.47μF
21
8Ω
Driver
2
20
19
REG_G
18
C17A
0.1μF
C19
4.7μF
L17
17 _C17B
330pF
33μH
R17
15Ω
16
VCC
C14
3.3μF
14 REG_G
High Temperature Protection
Output Short Protection
Under Voltage Protection
VCCP2
15
C15A
4.7μF
C15B
470μF
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25/31
2010.05 - Rev.B