Texas Instruments TPA0202 User Manual
Page 20
The TPA0202 Audio Power Amplifier Evaluation Module
3-4
Details
Figure 3–3. TPA0202 EVM Schematic Diagram
GND/HS
GND/HS
S2
NC
NC
ROUT+
LOUT+
RLINE IN
LLINE IN
HP/LINE
MUTE OUT
ROUT–
LOUT–
SE/BTL
MUTE IN
GND/HS
GND/HS
RHP IN
LHP IN
RBYPASS
LBYPASS
RVDD
LVDD
NC
SHUTDOWN
10
9
12
11
6
5
8
7
2
1
4
3
23
22
21
20
19
18
17
16
15
14
13
24
R6
100 k
Ω
R4
20 k
Ω
R3
20 k
Ω
C2
1
µ
F
C1
1
µ
F
R1
20 k
Ω
R2
50 k
Ω
C3
5 pF
LVDD
S7
LVDD
R13
510
Ω
D1
R5
100 k
Ω
C12
10
µ
F
C5
2.2
µ
F
S1
S8
LOUT–
MUTE IN
LIN
LHP
LVDD
LOUT+
R10
20 k
Ω
C7
1
µ
F
C4
2.2
µ
F
C9
2.2
µ
F
R9
20 k
Ω
R7
50 k
Ω
C8
5 pF
C6
1
µ
F
R8
20 k
Ω
S3
LVDD
R11
100 k
Ω
S4
LVDD
R12
100 k
Ω
S6
ROUT+
RIN
RHP
RVDD
HP/LINE
ROUT–
SE/BTL
S5
LVDD
C10
2.2
µ
F
C11
10
µ
F
TPA0202
3.2.1
TPA0202 Audio Amplifier IC
The TPA0202 audio amplifier IC is a CMOS device intended primarily for
bridge-tied load (BTL) operation in battery-powered applications. It is supplied
in a very small 24-pin TSSOP thermal surface-mount package and has been
designed to operate from low supply voltages (between approximately 3 V and
5.5 V) and deliver full power at distortion levels of less than 0.1% THD+N from
a 5-V supply (Figure 3 – 4). Typical applications include portable computers
and multimedia systems.