TDA7492P13TR Datasheet, PDF (14/26 Pages) STMicroelectronics – 25-watt + 25-watt dual BTL class-D audio amplifier

Characterization curves
TDA7492P
Figure 13. THD at 100 Hz vs output power
Test conditions:
Vcc = 20 V,
RL = 8 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 100 Hz,
Gv = 30 dB,
Tamb = 25r C
Specification limit:
Typical:
Po = 25 W @THD = 10%
10
5
THD (%)
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
100m
200m
500m
1
2
5
Output power (W)
10
20 30
Figure 14. THD at 1 W vs frequency
Test conditions:
Vcc = 20 V,
RL = 8 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W
Tamb = 25r C
0.5
0.2
THD (%)
0.1
0.05
Specification Limit:
Typical:
THD < 0.4%
0.02
0.01
0.005
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 20k
Figure 15. Frequency response
Test conditions:
Vcc = 20 V,
RL = 8 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W
Tamb = 25r C
+2
+1
Ampl
(dB) ^-0
-1
-2
Specification limit:
Max:
+/-3 dB @20 Hz to 20 kHz
-3
-4
-5
10
20
50
100 200
500 1k
2k
Frequency (Hz)
5k 10k 20k 30k
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Doc ID 15068 Rev 5