Datasheet

f − Frequency − Hz
20
V
CC
= 24 V
R
L
= 8 Ω (BTL)
Gain = 20 dB
100 1k 10k
THD+N − Total Harmonic Distortion + Noise − %
0.001
10
20k
0.1
G020
1
P
O
= 5 W
P
O
= 20 W
0.01
P
O
= 1 W
P
O
− Output Power − W
0.01
R
L
= 8 Ω (BTL)
Gain = 20 dB
0.1 1 10
THD+N − Total Harmonic Distortion + Noise − %
0.001
0.01
10
40
0.1
G021
1
V
CC
= 12 V
V
CC
= 24 V
V
CC
= 18 V
V
CC
− Supply Voltage − V
0
5
10
15
20
25
30
35
40
45
50
10 12 14 16 18 20 22 24 26
P
O
− Output Power − W
G023
THD+N = 1%
THD+N = 10%
R
L
= 8 Ω (BTL)
Gain = 20 dB
P
O
− Output Power − W
0
10
20
30
40
50
60
70
80
90
100
0 2 4 6 8 10 12
Efficiency − %
G024
R
L
= 8 Ω (BTL)
Gain = 20 dB
V
CC
= 24 V
TPA3121D2
www.ti.com SLOS537A –MAY 2008–REVISED AUGUST 2010
TYPICAL CHARACTERISTICS (continued)
All tests are made at frequency = 1 kHz unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE TOTAL HARMONIC DISTORTION + NOISE
vs vs
FREQUENCY OUTPUT POWER
Figure 21. Figure 22.
OUTPUT POWER EFFICIENCY
vs vs
SUPPLY VOLTAGE OUTPUT POWER
A. Dashed line represents thermally limited region.
Figure 23. Figure 24.
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