TDA7490L_05 Datasheet, PDF (7/11 Pages) STMicroelectronics – 20W + 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL

Figure 7. Distortion vs. Output Power
10
THD (%)
5
2
Stereo
Vcc=+/-19V
1
Rl = 8 ohm
f = 1KHz
0.5
Filter AES
0.2
0.1
0.05
0.02
0.01
200m
500m
1
2
5
Pout (W)
10
20 30
Figure 8. Distortion vs. Output Power
THD(%)
10
5
2
1
0.5
Stereo
Vs=+/-13.5V, Rl=4Ohm
f = 1KHz
0.2
0.1
0.05
0.02
0.01
200m
500m 1
2
5
10 20
Pout(W)
Figure 9. 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)
TDA7490L
Figure 10. Frequency Response
AMP
(dB)
2
0
-2
-4
VS= ±17V;
Rl= 8Ω;
-6
0dB= 1W
-8
-10
-12
-14
0.01
0.1
1
10
D99AU1103
f(KHz)
Figure 11. Power Dissipation vs. Output Power
Ptot(W)
8
7
6
5
Vs=± 19V
Rl = 8 ohm
f = 1KHz
4
3
2
1
0
0.5 2 4 6 8 10 12 14 16 18 20
2xPo(W)
Figure 12. Distortion vs. Output Power in BTL
THD (%)
10
5
2
1
0.5
BTL
Vcc=+/-15.5 V
Rl = 8ohm
f = 1KHZ
Filter AES
0.2
0.1
0.05
0.02
0.01
200m
500m
1
2
5
10
20
50
Pout (W)
7/11