TDA7491LP13TR Datasheet, PDF (20/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier

Characterization curves
TDA7491LP
Figure 18. THD vs. output power (100 Hz)
Test Condition:
Vcc =9V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =100Hz,
Gv =30dB,
Tamb =25°C
Specification Limit:
Typical:
Po =5W @ THD =10%
THD (%)
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
100m
200m 300m 400m 600m 800m 1
Output Power (W)
2
3
4 56
Figure 19. THD vs. frequency
Test Condition:
Vcc =9V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Po =1W
Tamb =25°C
THD (%)
1
0.5
0.2
0.1
0.05
0.02
Specification Limit:
Typical: THD<0.5%
0.01
0.005
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 20k
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Doc ID 13541 Rev 5