TDA7491P Datasheet, PDF (15/42 Pages) STMicroelectronics – 2 x 10-watt dual BTL class-D audio amplifier

TDA7491P
Characterization curves
Figure 7.
THD vs. frequency
Test Condition:
Vcc=10V,
RL=4 ohm,
Rosc=39kΩ, Cosc=100nF,
f = 1kHz,
Gv=30dB,
Po=1W
Tamb=25℃
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
Figure 8.
Frequency response
Test Condition:
Vcc =10V,
RL= 4 ohm,
Rosc=39kΩ, Cosc=100nF,
f = 1kHz,
Gv = 30dB,
Po =1W
Tamb = 25℃
Specification Limit:
Max: +/-3dB
@20Hz to 20kHz
Ampl (dB)
+2
+1
-0
-1
-2
-3
-4
-5
10
20
50 100 200
500
1k
2k
Frequency (Hz)
5k 10k
30k
Figure 9. Crosstalk vs. frequency
Crosstalk (dB)
Test Conditions:
Vcc = 10V
Rl = 4 ohm
Rosc = 39k ohm
Cosc = 100nF
Po = 1W
Gv = 20 dB
Tamb. = 25 ˚C
Specification limits:
Typical:
Crosstalk < -73 dB
Frequency (Hz)
Doc ID 13540 Rev 6
15/42