TDA7490 Datasheet, PDF (6/10 Pages) STMicroelectronics – 25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL

TDA7490
Figure 6. Distortion vs. Output Power
THD
(%)
5
Stereo
VS ± 21V; Rl=8Ω;
2
f=1KHz
1
0.5
D99AU1088
0.2
0.1
0.05
0.02
0.01
0 2 4 6 8 10 12 14 16 18 20 22 24 PO(W)
Figure 7. Distortion vs. Output Power
THD
(%)
5
Stereo
VS ± 16V; Rl=4Ω;
2
f=1KHz
1
0.5
D99AU1089
0.2
0.1
0.05
0.02
0.01
0 2 4 6 8 10 12 14 16 18 20 22 24 PO(W)
Figure 8. Crosstalk vs. Frequency
CT
(dB)
-20
-30
-40
-50
-60
-70
-80
-90
-100
0.001
VS ± 17V;
Rl=8Ω;
0dB=1W
0.01
0.1
D99AU1102
1
f(KHz)
Figure 9. Frequency Response
AMP
(dB)
2
0
-2
-4
VS ± 21V;
Rl=8Ω;
-6
0dB=1W
-8
-10
-12
-14
0.01
0.1
1
10
D99AU1091
f(KHz)
Figure 10. Power Dissipation vs. Output Power
Power Dissipation (W)
8
7.5
7
6.5
6
5.5
Vs= +/- 21 V; Rl = 8 Ohm; f= 1 KHz
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Output Power (W)
Figure 11. Distortion vs. Output Power in BTL
THD
(%)
5
Bridge
VS ± 17V;
Rl=8Ω;
2
f=1KHz
1
0.5
D99AU1082
0.2
0.1
0.05
0.02
0.01
0
5 10 15 20 25 30 35 40 45 50 PO(W)
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