TPA301
350-mW MONO AUDIO POWER AMPLIFIER
SLOS208C – JANUARY1998 – REVISED MARCH 2000
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
FREQUENCY
FREQUENCY
10
10
V
P
R
= 3.3 V
= 250 mW
= 8 Ω
DD
O
L
V
= 3.3 V
DD
R = 8 Ω
L
A
V
= –20 V/V
A = –2 V/V
V
P
O
= 50 mW
1
1
A
V
=– 10 V/V
A
V
= –2 V/V
P
O
= 125 mW
0.1
0.1
P
= 250 mW
O
0.01
0.01
20
100
1k
10k 20k
20
100
1k
10k 20k
f – Frequency – Hz
f – Frequency – Hz
Figure 7
Figure 8
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
vs
OUTPUT POWER
OUTPUT POWER
10
10
V
= 3.3 V
DD
f = 1 kHz
f = 20 kHz
A
V
= –2 V/V
f = 10 kHz
1
1
f = 1 kHz
R
= 8 Ω
L
0.1
0.1
f = 20 Hz
V
R
A
V
= 3.3 V
DD
= 8 Ω
L
= –2 V/V
0.01
0.01
0.04
0.1
P
0.16
0.22
0.28
0.34
0.4
0.01
0.1
– Output Power – W
1
– Output Power – W
P
O
O
Figure 9
Figure 10
7
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