TDA7491LP Datasheet, PDF (23/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier

TDA7491LP
Figure 24. Power supply rejection ratio vs. frequency
Characterization curves
Test Condition :
Vcc = 9V,
RL = 8 ohm,
Rosc =39kΩ, Cosc =100nF,
Vin=0,
Gv =30dB,
Tamb =25°C
Ripple frequency=100Hz
Ripple voltage=500mV
Figure 25. Power dissipation and efficiency vs. output power
Test Condition :
Vcc = 9V,
RL = 8 ohm,
Rosc =39kΩ, Cosc =100nF,
Vin=0,
Gv =30dB,
Tamb =25°C
90
80
70
60
50
40
30
20
10
0
0
Vcc=9V
Rload=8ohm
Gain=30dB
f=1kHz
1
2
3
4
Output power per channel (W)
2. 5
2
1. 5
1
0. 5
0
5
Doc ID 13541 Rev 5
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