Texas Instruments TPA3008D2 - Page 9

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28
24
20
16
10 100 1k
Gain − dB
32
36
f − Frequency − Hz
40
10k
12
8
4
0
80k
V
CC
= 12 V,
R
L
= 8 Ω,
Gain = 32 dB
33 kHz, RC LPF
Gain
Phase
Phase −
50
0
100
−150

−100
−50
150
0
1
2
3
4
5
6
7
8
9
10
11
12
8 9
10 11 12 13 14 15 16 17 18
P
O
− Output Power − W
THD+N = 10%
THD+N = 1%
R
L
= 16 
V
CC
− Supply Voltage − V
2
3
4
5
6
7
8
9
8 9 10 11 12 13 14
THD+N = 1%
THD+N = 10%
R
L
= 8 
V
CC
− Supply Voltage − V
P
O
− Output Power − W
10
11
12
Power represented by dashed line
may require external heatsinking
0
10
20
30
40
50
60
70
0 1 2 3 4 5 6
P
O
− Output Power (Per Channel) − W
Efficiency − %
80
90
100
7 8 9 10
V
CC
= 18 V,
R
L
= 16 
TPA3008D2
SLOS435A – MAY 2004 – REVISED JULY 2004
OUTPUT POWER
vs
CLOSED-LOOP RESPONSE SUPPLY VOLTAGE
Figure 7. Figure 8.
OUTPUT POWER EFFICIENCY
vs vs
SUPPLY VOLTAGE OUTPUT POWER
Figure 9. Figure 10.
9