BD5446EFV Rohm, BD5446EFV Datasheet - Page 23

• Manufacturer Part Number: BD5446EFV
• Description: Class-D Speaker Amplifier
• Manufacturer: Rohm

●Application Circuit Example(R
© 2010 ROHM Co., Ltd. All rights reserved.
BD5446EFV
www.rohm.com
Digital Audio
Source
μ-con
OUT_DAC2
OUT_DAC1
ERROR
GNDP1
GNDA
GNDP2
GNDA
GNDA
(Rch)
(Lch)
VCCA
VSS
3.3V
SYS_CLK
BCLK
LRCLK
SDATA1
SDATA2
RESETＸ
MUTEＸ
PDX
(64fs)
0.1μF
10μF
(fs=32kHz～48kHz)
C25
(256fs)
C4
C5
3.3μF
3.3μF
(
(
100kΩ
1μF
VSS
1μF
1μF
1μF
1μF
C27
C1
C25D
C2
)
)
C22
C23
R24
3.3V
10
11
12
13
14
15
16
17
18
19
20
22
23
24
25
26
27
21
4
1
2
3
5
6
7
8
9
NC
REG_G2
Interface
Selector
Selector
Selector
Interface
Limiter
Power
I
Control
I
2
2
TEST
Gain
DAC
DAC
S/LJ
S/LJ
L_SP
VCCA
REG_G1
FILP
FILA
REG_3
GNDA
=8Ω)
×8 Over
Sampling
Digital
Filter
Output DC Voltage Protection
High Temperature Protection
Under Voltage Protection
Output Short Protection
Clock Stop Protection
Modulator
PWM
23/30
Driver
Driver
Driver
Driver
1P
1N
2N
2P
VCCP2
VCCP1
GNDP2
GNDP1
REG_G1
REG_G2
REG_G1
REG_G2
NC
NC
NC
NC
NC
NC
NC
53
52
50
49
48
47
46
45
44
43
42
40
39
38
37
36
35
34
33
32
30
29
28
54
51
41
31
1μF
1μF
C49
C31
C53
1μF
1μF
C28
C42
1μF
1μF
GNDP1
C38
VCCP1
GNDP2
VCCP2
220μF
220μF
C28D
C53D
470pF
R38B
R50B
R43B
470pF
R31B
5.6Ω
470pF
470pF
www.DataSheet4U.com
5.6Ω
5.6Ω
5.6Ω
C31B
C43B
C38B
C50B
0.068μF
22μH
22μH
0.068μF
22μH
0.068μF
22μH
Technical Note
L50
0.068μF
2010.05 - Rev.B
L43
L38
L31
GNDP1
GNDP2
C50A
C43A
C31A
C38A
0.33μF
0.33μF
C43C
C31C
(SDATA1)
(SDATA1)
Lch
Rch
8Ω
8Ω