TDA749313TR Datasheet, PDF (20/30 Pages) STMicroelectronics – 3-watt 3-watt dual BTL class-D audio amplifier

Electrical characterization curves
6
Electrical characterization curves
TDA7493
6.1
For the configuration with LC filter
z Test setup as given in Figure 3 on page 8
z Test conditions V_CC = 5 V, C20 = 10 µF, R_L = 4 Ω, LC filter 15 µH, 470 nF
Figure 15. THD vs output power at 1 kHz
10
THD
5
(%)
2
d
1
B
0.5
r
A
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001100m
200m
300m 400m 500m 700m
1
Po (W)
2
3
Figure 16. THD vs output power at 100 Hz
10
THD 5
(%) 2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
100m
200m
300m 400m 500m 700m
1
Po (W)
2
3
Figure 17. THD vs frequency at 100 mW
10
THD ₅
(%)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
20
50
100
200
500
1k
2k
Frequency
5k
10k 20k
20/30
Doc ID 14570 Rev 6