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-250
200
-200
-150
-100
-50
0
50
100
150
5
22.5
7.5
10
12.5
15
17.5
20
20 100k100 200 1k 2k 10k 20k
f − Frequency − Hz
Gain dB
-
Phase
-
o
Gain
Phase
V =24V
R =8 (SE)
Gain=20dB
L =47 H
C =0.22 F
C =470 F
CC
L
filt
filt
dc
W
m
m
m
V − SupplyVoltage − V
SS
16 26
P
OutputPower
W
O
-
-
22
30
28
4
32
12
THD=10%
THD=1%
R =4 (SE)
Gain=20dB
L
W
6
8
2
14
18
10
16
20
24
30
26
1210 14 18 20 22 24 28
THD=10%
THD=1%
V -SupplyVoltage-V
SS
P -OutputPower-W
O
R =8 (SE)
Gain=20dB
L
W
16 26 301210
7
14 18 20 22 24 28
17
16
15
14
13
12
11
10
9
6
1
8
5
4
3
2
P − OutputPower − W
O
6 16
Efficiency
%
-
80
20
10
100
30
12V
18V
24V
R =4 (SE)
Gain=20dB
L
W
0
40
60
20
50
70
90
20 4 8 10 12 14 18
TPA3120D2
SLOS507E – MARCH 2007 – REVISED SEPTEMBER 2007
TYPICAL CHARACTERISTICS (continued)
All tests are made at frequency = 1 kHz unless otherwise noted.
GAIN/PHASE OUTPUT POWER
vs vs
FREQUENCY SUPPLY VOLTAGE
Figure 9.
A. Dashed line represents thermally limited
region.
Figure 10.
OUTPUT POWER EFFICIENCY
vs vs
SUPPLY VOLTAGE OUTPUT POWER
Figure 11. Figure 12.
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