T E C H N I C A L I N F O R M A T I O N
Application/Test Circuit
TA2020-020
VDD1
1
9
NC
Lo
10uH, 3A
OUTP1
DO
26
VP1
RF
20K
CI
2.2uF
+
Ω
CZ
Processing
&
(Pin 28)
IN1 10
*Co
PGND1
VDD1
0.47uF
0.47uF
RI
CCM
(Pin 28)
Modulation
20K
Ω
0.1uF
R
CA
4
orL*8
Ω
Ω
*Co
RZ
OUTM1
0.1uF
24
14
5V
10 1/2W
BIASCAP
0.47uF
Ω,
Lo
(Pin 7)
10uH, 3A
5V
DO
(Pin 28)
11
PGND1
MUTE
18
6
FAULT
OVERLOADB
12
13
VP2
RF
Ω
VDD2
20K
CI
Lo
2.2uF
IN2
10uH, 3A
+
OUTP2
21
RI
20K
Ω
DO
(Pin 19)
Processing
&
CZ
*Co
4
REF
0.47uF
PGND2
VDD2
0.47uF
(Pin 3)
(Pin 19)
Modulation
RREF
CCM
8.25K , 1%
Ω
0.1uF
RL
or *8
*Co
RZ
OUTM2
4
Ω
Ω
0.47uF
23
10 1/2W
Ω,
32
DCAP1
Lo
+12V
10uH, 3A
DO
CD
(Pin 19)
PGND2
29
31
0.1uF
DCAP2
SLEEP
1meg
Ω
17
CPUMP
+
CP
1uF
5
2
27
20
30
VDDA
0.1uF
5V
NC
CS
0.1uF
DGND
V5D
CS
CS
0.1uF
5VGEN
To Pin 2,8
0.1uF
3
8
AGND1
V5A
To Pin 30
25
28
VDD1
VDD (+13.5V)
+
CSW
CS
CSW
180uF, 16V
0.1uF
0.1uF
7
PGND1
AGND2
15
16
22
19
NC
VDD2
+
CSW
CSW
AGND3
0.1uF
PGND2
180uF, 16V
Note: Analog and Digital/Power Grounds must
be connected locally at the TA2020-020
Analog Ground
Digital/Power Ground
All Diodes Motorola MBRS130T3
* Use Co = 0.22 F for 8 Ohm loads
µ
TA2020-020, Rev. 4.0, 09.00
5 of 13
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
