TDA749313TR Datasheet, PDF (23/30 Pages) STMicroelectronics – 3-watt 3-watt dual BTL class-D audio amplifier

TDA7493
Electrical characterization curves
6.2
For the configuration without filter
z Test setup as given in Figure 7 on page 14
z Test conditions V_CC = 5 V, C20 = 10 µF, R_L = 4 Ω + 270 µH, no LC filter
Figure 23. THD vs output power at 1 kHz
10
THD
(%) 5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
100m
200m
300m 400m
600m 800m 1
Po (W)
2
3
4
Figure 24. THD vs output power at 100 Hz
THD ¹⁰
(%) 5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
100m
200m
300m 400m 600m 800m 1
Po (W)
2
34
Figure 25. THD vs frequency at 100 mW
10
THD ₅
(%)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
20
50
100
200
500
1k
2k
frequency (Hz)
5k
10k 20k
Doc ID 14570 Rev 6
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