TDA7480 Datasheet, PDF (7/10 Pages) STMicroelectronics – 10W MONO CLASS-D AMPLIFIER

TDA7480
TYPICAL CHARACTERISTICS (Application Circuit of fig 1 unless otherwise specified)
Figure 5. Output Power vs. Supply Voltage
Figure 6. Distortion vs. Output Power
Output Power (W)
16
15
14
13
Rl= 8 Ohm
12
F= 1 KHz
11
Thd=10%
10
9
8
7
6
5
4
Thd=1%
3
2
1
0
10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16
Supply Voltage (+/- V)
THD (%)
10
1
0.1
Vs= +/- 14V
Rl= 8 Ohm
F= 1 KHz
0.01
0
1
2
3
4
5
6
7
8
9
10
Output Power (W)
Figure 7. Distortion vs. Output Power
Figure 8. Power Dissipation and Efficiency vs.
Output Power
THD (%)
10
1
Vs= +/- 10.5V
0.1
Rl= 4 Ohm
F= 1 KHz
0
1
2
3
4
5
6
7
8
9
10
Output Power (W)
Power Dissipation (W)
2
1.8
Efficiency
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
1
2
3
Efficiency (%)
100
80
60
Pdiss
40
Vs= +/- 14V
Rl= 8 Ohm
F= 1 KHz
20
0
4
5
6
7
8
9
10
Output Power (W)
Figure 9. Power Dissipation and Efficiency vs.
Output Power
Power Dissipation (W)
2.5
Efficiency
2
1.5
1
0.5
0
0
1
2
3
Pdiss
4
5
6
Output Power (W)
Efficiency (%)
100
90
80
70
60
50
40
Vs= +/- 10.5V
30
Rl= 4 Ohm
F= 1 KHz
20
10
0
7
8
9
10
Figure 10. Mute Attenuation vs. Vpin 12
Attenuation (dB)
20
10
0
Vs= +/- 14V
-10
Rl= 8 Ohm
-20
0 dB =1 W @ F= 1 KHz
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Vpin #12 (V)
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