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BD3843FS-E2
P1-P3
P4-P6
P7-P9
P10-P10
4/9
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
T
echnical Note
BD3843FS,BD3841FS
3.
Control data format list
(1) BD3843FS control data format
Data input direction
MSB
LSB
Data
D16 D15 D14 D13 D12
D1
1
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
INPUT FUNCTION 1
INPUT FUNCTION 2
RECA
0:OFF
1:ON
RECB
0:OFF
1:ON
*
0 0 0
Select
Address
(2) BD3841FS control data format
Data input direction
MSB
LSB
Data
D16 D15 D14 D13 D12 D1
1
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
INPUT FUNCTION 1
INPUT FUNCTION 2
RECA
0:OFF
1:ON
RECB
0:OFF
1:ON
RECC
0:OFF
1:ON
* * *
1
0
1
*:Don’t care.
(Ex.)
Data input direction
MSB LSB
Data L
"L" represents la
tch.
5/9
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
T
echnical Note
BD3843FS,BD3841FS
●
Block diagram, application circu
it
1)BD3843FS)
(both power sources)
Fig.2
2)BD3841FS
(both power sources)
Fig.3
UNIT
RESIST
ANCE
：Ω
CAP
ACITOR
：
F
* F-SW1
：
INPUT
FUNCTION1
F
-
S
W
2
：
INPUT
FUNCTION2
30
29
31
32
24
23
25
26
27
28
18
17
19
20
21
22
15
16
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LOGIC
10K
Ω
10
K
Ω
47
μ
47
μ
47K
47K
47K
47K
47K
47K
47K
CL
47
K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
DA
V
EE
V
cc
RE
C
A1
REC
A
2
RECB1
RE
C
B2
RECC1
REC
C2
OUT
1
OUT2
IN
I1
IN
I2
IN
A1
IN
A
2
INB
1
INB
2
INC
1
INC2
I
ND1
IND2
INE
1
INE
2
IN
F
1
IN
F2
IN
G
1
IN
G2
INH1
IN
H
2
47K
F-
S
W
1
F-S
W
2
CL
DA
VEE
DGND
VCC
RECA1
RECA2
RECB1
RECB2
OUT1
OUT2
GND
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
22
23
24
16
15
17
18
19
20
13
14
21
12
11
10
9
8
7
6
5
4
3
2
1
LOGIC
F-SW1
F-SW2
10K
10K
47μ
47μ
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
6/9
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
T
echnical Note
BD3843FS,BD3841FS
3)BD3843FS
(single power source)
Fig.4
4)BD3841FS
(single power source)
Fig.5
* F-SW1
：
INPUT
FUNCTION1
F-SW2
：
INPUT
FUNCTION2
CL
DA
DGND
1/2VCC
RECA1
RECA2
RECB1
RECB2
OUT1
OUT2
GND
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
22
23
24
16
15
17
18
19
20
13
14
21
12
11
10
9
8
7
6
5
4
3
2
1
LOGIC
F-SW1
F-SW2
10K
10K
47K
10μ
47K
10μ
47K
10μ
47K
10μ
10μ
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
47K
10μ
VCC
47μ
30
29
31
32
24
23
25
26
27
28
18
17
19
20
21
22
15
16
14
13
12
11
10
9
8
7
6
5
4
3
2
1
10K
Ω
LOG
IC
10K
Ω
47
μ
47K
47K
47K
47K
47K
47K
47K
CL
47
K
47K
47
K
47K
47
K
47K
47K
47K
47K
47K
47K
47K
47K
47K
DA
1/2
V
cc
V
cc
RE
CA1
RECA
2
RE
CB
1
RECB2
RECC1
RE
CC2
OUT
1
OU
T
2
IN
I1
IN
I2
IN
A1
IN
A2
INB1
INB2
I
NC1
IN
C2
IND1
IN
D
2
INE
1
INE
2
IN
F1
IN
F2
IN
G1
IN
G2
INH1
IN
H2
47K
47K
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
47K
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
10
μ
F-
S
W
1
F-
S
W2
UNIT
RESIST
ANCE
：
Ω
CAP
ACITOR
：
F
RESIST
ANCE
：
Ω
P1-P3
P4-P6
P7-P9
P10-P10
BD3843FS-E2
Mfr. #:
Buy BD3843FS-E2
Manufacturer:
Description:
Audio Amplifiers 8V-14.6V 2-wire SSOP-A24 Audio Prcsr
Lifecycle:
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