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
OUTPUT POWER
FREQUENCY
10
1
10
1
V
= 3.3 V
= 10 kΩ
= –1 V/V
= 1 µF
DD
L
V
= 5 V
R
A
DD
L
R
P
= 10 kΩ
= 300 µW
= 1 µF
V
C
B
O
C
B
0.1
0.1
A
V
= –5 V/V
20 Hz
10 kHz
A
V
= –1 V/V
0.01
0.01
20 Hz
1 kHz
A
V
= –2 V/V
0.001
0.001
5
10
100
200
20
100
1k
10k 20k
P
O
– Output Power – µW
f – Frequency – Hz
Figure 9
Figure 10
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
FREQUENCY
OUTPUT POWER
10
10
1
V
R
= 5 V
= 10 kΩ
= –1 V/V
= 1 µF
DD
L
V
= 5 V
= 10 kΩ
= –1 V/V
= 1 µ F
DD
R
L
A
V
A
V
C
B
C
B
1
P
O
= 300 µW
0.1
0.1
P
O
= 200 µW
20 Hz
20 kHz
0.01
0.01
10 kHz
100
P
O
= 100 µW
1 kHz
0.001
0.001
20
100
1k
10k 20k
5
10
500
f – Frequency – Hz
P
O
– Output Power – µW
Figure 11
Figure 12
8
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