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
FREQUENCY
2
1
10
1
V
= 3.3 V
= 75 mW
= 8 Ω
DD
V
R
A
V
= 3.3 V
DD
= 8 Ω
P
R
C
O
L
A
V
= –5 V/V
L
= –1 V/V
= 1 µF
B
P
O
= 30 mW
A
V
= –2 V/V
0.1
P
O
= 15 mW
A
V
= –1 V/V
0.1
0.01
0.01
P
O
= 75 mW
1k
0.001
0.001
20
100
1k
f – Frequency – Hz
10k 20k
20
100
10k 20k
f – Frequency – Hz
Figure 13
Figure 14
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
OUTPUT POWER
FREQUENCY
2
1
10
V
R
A
V
= 3.3 V
= 8 Ω
= –1 V/V
DD
L
V
= 5 V
= 100 mW
= 8 Ω
A
= –2 V/V
DD
V
P
R
C
O
A = –5 V/V
V
20 kHz
10 kHz
L
= 1 µF
B
1
0.1
A
V
= –1 V/V
1 kHz
0.1
0.01
20 Hz
0.001
0.01
20
100
1k
f – Frequency – Hz
10k 20k
10m
0.1
– Output Power – W
0.3
P
O
Figure 15
Figure 16
9
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