TPA122
150-mW STEREO AUDIO POWER AMPLIFIER
SLOS211C – AUGUST1998 – REVISED MARCH 2000
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
FREQUENCY
OUTPUT POWER
10
10
1
V
= 5 V
= 32 Ω
= –1 V/V
= 1 µF
V
= 5 V
= –1 V/V
= 32 Ω
= 1 µF
DD
L
DD
R
A
A
V
R
C
V
L
B
C
B
20 kHz
10 kHz
1
P
O
= 30 mW
0.1
P
O
= 15 mW
0.1
1 kHz
0.01
20 Hz
P
O
= 60 mW
0.001
0.01
20
100
1k
10k 20k
0.002
0.01
– Output Power – W
0.1
0.2
P
O
f – Frequency – Hz
Figure 5
Figure 6
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
FREQUENCY
FREQUENCY
10
1
10
1
V
R
= 3.3 V
= 10 kΩ
= 100 µF
= 1 µF
DD
L
V
= 3.3 V
= 10 kΩ
= –1 V/V
= 1 µF
DD
R
L
P
C
O
A
V
B
C
B
A
V
= –5 V/V
0.1
0.1
P
O
= 45 µW
0.01
0.01
A
V
= –2 V/V
P
O
= 90 µW
P
O
= 130 µW
0.001
0.001
20
100
1k
10k 20k
20
100
1k
f – Frequency – Hz
Figure 8
10k 20k
f – Frequency – Hz
Figure 7
7
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