TDA7560
Figure 9. Distortion vs. frequency.
Figure 10. Crosstalk vs. frequency.
THD(%)
10
CROSSTALK (dB)
90
80
70
60
Vs=14.4V
1
RL= 2 Ohm
Po= 8 W
0.1
0.01
50
40
30
20
RL= 4Ohm
Po= 4 W
Rg= 600 Ohm
0.001
10
100
1000
10000
10
100
1000
10000
f (Hz)
f (Hz)
Figure 12. Output attenuation vs. supply
voltage.
Figure 11. Supply voltage rejection vs. fre-
quency.
SVR(dB)
OUT ATTN (dB)
100
90
80
70
60
0
RL= 4 Ohm
Po= 4 W ref.
-20
-40
-60
50
Rg= 600 Ohm
40
30
20
Vripple=1Vrms
-80
-100
5
6
7
8
9
10
10
100
1000
10000
f (Hz)
Vs(V)
Figure 13. Output noise vs. source resistance.
Figure 14. Power dissipation & efficiency vs.
output power (sine-wave operation)
En(uV)
130
Ptot(W)
n(%)
90
80
70
60
50
40
30
20
10
0
90
120
80
70
60
50
40
30
20
10
0
n
Vs= 14.4V
RL=4Ohm
110
Vs=13.2V
100
RL=4 x 4Ohm
f=1 KHz SINE
90
80
70
22-22KHz lin.
60
Ptot
50
”A”wgtd
40
30
20
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28 30
Po(W)
1
10
100
1000
10000 100000
Rg(Ohm)
7/10
STMICROELECTRONICS [ ST ]
