TDA7491HV Datasheet, PDF (14/26 Pages) STMicroelectronics – 20 W + 20 W dual BTL class-D audio amplifier

Characterization curves
Figure 17. Cross talk vs frequency
Cross Talk (dB)
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
20
50
Vs =18V
Rl =6 ohm
f =1kHz
Po =1W
Lo to R
100
200
500
1k
Frequency (Hz)
Ro to L
2k
5k
10k
20k
TDA7491HV
Figure 18. FFT performance (0 dB)
FFT (dB)
+10
+0
-10
-20
Vs =18V
-30
-40
Rl =6 ohm
-50
f =1kHz
-60
Po =1W
-70
-80
-90
-100
-110
-120
-130
-140
-150
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
Figure 19. FFT performance (60 dB)
FFT (dB)
+10
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
20
Vs =18V
Rl =6 ohm
@ f =1kHz
Po =1W
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
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