TDA7491MV Datasheet, PDF (15/28 Pages) STMicroelectronics – 25 W mono BTL class-D audio amplifier

TDA7491MV
Figure 14. Attenuation vs voltage on pin STBY
Characterization curves
Test Condition :
Vcc = 5~18V,
RL = 8 ohm,
Rosc =39kO, Cosc =100nF,
0dB@f=1kHz, Po=1w,
Gv =30dB,
Tamb =25℃
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
0
Attenuation vs Standby voltage
Vcc=18V
Rload=8ohm
Gain=30dB
0dB@f=1kHz,Po=1W
0.5
1
1.5
2
2.5
Standby voltage (V)
3
3.5
Figure 15. Power supply rejection ratio vs frequency
Test Condition :
Vcc = 18V,
RL = 8 ohm,
+0
T
-10
-20
Rosc =39kO, Cosc =100nF,
Vin=0,
Gv =30dB,
Tamb =25℃
-30
-40
d
B
r
-50
A
-60
Ripple frequency=100Hz
Ripple voltage=500mV
-70
-80
-90
-100
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
Doc ID 14576 Rev 2
15/28