Tri pat h Tec hnol og y, I nc. - Pr elimi nar y I nform at ion
Application Circuit – Split Supply
TDA1400
C
ISA
OAOUT_AMP
45
R
ISB
**
D_IS R
ISA
CKT 4.7K
D
BIAS
Q
ISP
R
GS
150K
R
G
Q
P
V10
15
HO_NEG
C
G
1.0uF1.0K
C
HBR
0.1uF
D
DS
Q
N
+
C
HBR
33uF
L
O
11uH
C
S
0.1uF
+
C
S
220uF
VPP
C
I
2.2uF
+
R
I
R
F
20K 20K
INV_AMP
46
V5
-
+
V10
R
OFB
470K
V5
R
OFA
5K
Offset Trim
Circuit
R
OFB
470K
C
OF
0.1uF
AGND
C
A
0.1uF
BIASCAP
3
OCD2
33
OCD1
35
5V
V5
17
LO_NEG
FET controller
S_SUP
1.0uF
CKT
**
S_SUP
C
G
CKT
1.0uF
C
ISA
1.0uF
R
ISB
**
G_OFF
CKT
D
G
D
G
R
G
D
BIAS
R
GS
150K
R
S
C
O
0.22uF
R
Z
AGND
D
DS
10Ω,2W
C
Z
0.22uF
V5
2.5V
MUTE
1.0K **
D_IS R
ISA
CKT 4.7K
Q
ISN
V5
11
FBK_NEG
C
FB
220pF
R
FBA
1K
*R
FBB
1.07K
*R
FBC
15K, 1%
8
GATEOFF
Processing
&
Modulation
6, 32
V5
5
5V
C
S
0.1uF
43, 44
41, 42
36
C
S
0.1uF
AGND
SUB
AGND
10V
C
S
0.1uF
25
V10
13,24
V10
PGND
C
G
C
ISA
R
ISB
**
D_IS R
ISA
CKT 4.7K
D
BIAS
Q
ISP
R
GS
150K
R
G
Q
P
OAOUT_AUX
1
V5
22
HO_POS
1.0uF1.0K
C
HBR
0.1uF
+
C
HBR
33uF
L
O
11uH
C
S
0.1uF
INV_AUX
2
V5
R
REF
8.25K, 1%
R
BBMSET
-
+
V10
20
LO_POS
FET controller
S_SUP
1.0uF
CKT
**
S_SUP
C
G
CKT
1.0uF
C
ISA
1.0uF
R
ISB
**
G_OFF
CKT
D
G
D
G
R
G
D
BIAS
R
GS
150K
Q
N
R
S
C
O
0.22uF
R
10Ω,2W
C
Z
0.22uF
Z
DCMP
4
REF
34
AGND
BBMSET
7
MUTE
V5
1.0K **
D_IS R
ISA
CKT 4.7K
Q
ISN
VNN
40.2K, 1%
*R
VNN1
VNNSENSE
38
*R
VNN2
V5
27
FBK_POS
C
FB
220pF
VPPSENSE
40
R
FBA
1K
*R
FBB
1.07K
*R
FBC
15K, 1%
V5
*R
VPP1
VPP
*R
VPP2
V5
0Ω
V5
R
FLT
10K
MUTE
Analog Ground
Power Ground
12,14,16,18,19,21,23,26,31,37,39,48
NC
47
30
FAULT
* The values of these components must be adjusted based
on supply voltage range. See Application Information.
** Refer to the RB-TDA1400 document for a detailed
description of these optional circuits.
8
TDA1400 – Rev. 0.65/KLi/02.06
+
29
OCSP_POS
28
OCSN_POS
C
S
0.1uF
+
+
9
OCSP_NEG
10
OCSN_NEG
C
S
0.1uF
C
S
220uF
VNN
R
L
4 - 8Ω
C
S
220uF
VPP
C
S
220uF
VNN
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
