Tripath Technology, Inc. - Preliminary Information
Application Circuit – Single Supply
VPP
CHBR
**
RISA
TDA1400
D_IS
DBIAS
QIS
RGS
4.7K
RISB
CKT
CHBR
CISB
1.0uF
+
150K
220uF
0.1uF
1.0K
V10
QP
QN
OAOUT_AMP
INV_AMP
45
46
RG
CG
15
HO_NEG
LO
DG
DG
DDS
CI
11uH
RI
RF
1.0uF **
**
RS
2.2uF
+
S_SUP
CKT
G_OFF
V5
20K
20K
CKT
V10
V5
RZ
-
CO
RG
+
17 LO_NEG
DDS
ROFB
0.22uF 10Ω,2W
AGND
470K
RGS
150K
CZ
0.22uF
FET controller
V5
ROFB
470K
ROFA
5K
COF
OCSP_NEG
OCSN_NEG
0.1uF
9
10
Offset Trim
Circuit
2.5V
AGND
MUTE
V5
CA
*RFBA
*RFBC
20K, 1%
0.1uF
2.21K
FBK_NEG
3
11
BIASCAP
CFB
RFBB
1K
OCD2
OCD1
220pF
33
35
RL
4 - 8Ω
GATEOFF
8
6, 32
V5
V5
Processing
&
Modulation
5V
43, 44
41, 42
5V
CS
CS
0.1uF
0.1uF
5
AGND
V10
AGND
SUB
25
10V
VPP
**
CS
RISA
D_IS
36
1
0.1uF
DBIAS
QIS
RGS
150K
4.7K
RISB
CKT
CHBR
CISB
1.0uF
CHBR
0.1uF
+
13,24
PGND
220uF
1.0K
V10
22
QP
QN
RG
DG
DG
OAOUT_AUX
INV_AUX
CG
HO_POS
LO
DDS
11uH
1.0uF **
**
RS
S_SUP
CKT
G_OFF
V5
CKT
2
V10
RZ
CO
-
RG
20 LO_POS
+
DDS
0.22uF 10Ω,2W
AGND
V5
RGS
150K
CZ
0.22uF
FET controller
DCMP
4
RREF
REF
34
8.25K, 1%
RBBMSET
V5
OCSP_POS
OCSN_POS
29
28
BBMSET
7
MUTE
V5
40.2K, 1%
*RFBA
*RFBC
20K, 1%
R VNN116K
2.21K
FBK_POS
27
VNNSENSE
VPPSENSE
38
40
CFB
220pF
RFBB
1K
*RVPP1
VPP
V5
0Ω
*RVPP2
Analog Ground
Power Ground
V5
NC
12,14,16,18,19,21,23,26,31,37,39,48
30
RFLT
10K
MUTE
47
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.
7
TDA1400 – Rev. 0.65/KLi/02.06
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
