TDA7491P Datasheet, PDF (26/42 Pages) STMicroelectronics – 2 x 10-watt dual BTL class-D audio amplifier

Characterization curves
TDA7491P
Figure 32. THD vs. frequency
Test Condition:
Vcc =12V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Po =1W
Tamb =25℃
Specification Limit:
Typical: THD<0.5%
THD (%)
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 20k
Figure 33. Frequency response
Amplitude (dB)
Test Conditions:
Vcc = 12V
Rl = 8 ohm
Rosc = 39k ohm
Cosc = 100nF
Po = 1W
Gv = 20 dB
Tamb. = 25 ˚C
Specification limits:
Typical:
Max: +/- 3 dB
@20—20kHz
Frequency (Hz)
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Doc ID 13540 Rev 6