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P
O
− Output Power − W
0
20
40
60
80
100
0 1 2 3 4 5 6 7
Efficiency − %
G013
Gain = 20 dB
R
L
= 4 Ω (SE)
V
CC
= 12 V
P
O
− Output Power − W
0
20
40
60
80
100
0 2 4 6 8 10 12 14
Efficiency − %
G014
Gain = 20 dB
R
L
= 8 Ω (SE)
V
CC
= 12 V
V
CC
= 18 V
V
CC
= 24 V
P
O
− Total Output Power − W
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 2 4 6 8 10 12 14
I
CC
− Supply Current − A
G015
Gain = 20 dB
R
L
= 4 Ω (SE)
V
CC
= 12 V
P
O
− Total Output Power − W
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 2 4 6 8 10 12 14
I
CC
− Supply Current − A
G016
Gain = 20 dB
R
L
= 8 Ω (SE)
V
CC
= 18 V
V
CC
= 24 V
V
CC
= 12 V
−120
−100
−80
−60
−40
−20
0
f − Frequency − Hz
PSRR − dB
G017
Gain = 20 dB
R
L
= 4 Ω (SE)
V
CC
= 12 V
V
ripple
= 200 mV
p-p
20 100 1k 20k10k
20 100 1k 20k10k
f − Frequency − Hz
0.1
0.01
0.001
G018
Gain=20dB
R
L
=8 Ω (BTL)
V
CC
=24V
1
THD+N − %
10
P
O
=20W
P
O
=1W
P
O
=5W
TPA3122D2
SLOS527A – DECEMBER 2007 – REVISED DECEMBER 2007
TYPICAL CHARACTERISTICS (continued)
EFFICIENCY EFFICIENCY
vs vs
OUTPUT POWER (SE) OUTPUT POWER (SE)
Figure 13. Figure 14.
SUPPLY CURRENT SUPPLY CURRENT
vs vs
TOTAL OUTPUT POWER (SE) TOTAL OUTPUT POWER (SE)
Figure 15. Figure 16.
POWER SUPPLY REJECTION RATIO TOTAL HARMONIC DISTORTION + NOISE
vs vs
FREQUENCY (SE) FREQUENCY (BTL)
Figure 17. Figure 18.
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