TDA7495SA_07 Datasheet, PDF (9/15 Pages) STMicroelectronics – 11 W + 11 W amplifier with DC volume control

TDA7495SA
Applications
Figure 13. Supply voltage vs frequency
SVR
(dB)
-20
VRIP=1VRMS
D97AU564
-40
MAX VOLUME
-60
MAX ATTENUATION
-80
-100
20
100
1K
f(Hz)
Figure 14. Gain vs volume control voltage (#3)
Gain
(dB)
30
D97AU563
20
10
POUT=1W
0
-10
-20
-30
-40
-50
-60
-70
-80
0.0 1.0 2.0 3.0 4.0 Vpin#3(V)
Figure 15. Power dissipation vs output power Figure 16. Power dissipation vs output power
P_DISS
(W)
10
8
R_L=2 x 8Ω
f=1KHz
6
D97AU567
V_S=28V
V_S=24V
4
V_S=18V
2
V_S=14V
0
0.1
1
10 POUT(W)
P_DISS
(W)
16
R_L=2 x 4Ω
f=1KHz
12
8
D97AU568
V_S=26V
V_S=20V
4
0
0.1
1
10 POUT(W)
3.5
Internal equivalent circuits
Figure 17. Pin: SVR
Figure 18. Pins: INL, INR
SVR
V_S
V_S
V_S
20K
6K
20K
6K
100µA
+
-
1K ^30K
OUT L
1K
30K
-
+
OUT R
D97AU585A
INn
SVR
30K
V_S
500µA
6K
D97AU589
9/15