TDA749213TR Datasheet, PDF (16/32 Pages) STMicroelectronics – 50 W + 50 W dual BTL class-D audio amplifier

Characterization curves
TDA7492
Figure 13. THD vs. output (100 Hz)
Test conditions:
Vcc = 25 V,
RL = 8 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 100 Hz,
Gv = 30 dB,
Tamb = 25r C
10
5
THD
%
2
1
0.5
0.2
0.1
Specification limit:
0.05
Typical:
Po = 40 W at THD = 10%
0.02
0.01
100m
200m
500m
1
2
5
10
20
50
Output power (W)
Figure 14. THD vs. frequency
Test conditions:
Vcc = 25 V,
RL = 8 Ω,
0.5
0.4
0.3
THD
%
0.2
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
0.1
Gv = 30 dB,
0.07
0.06
Po = 1 W,
0.05
Tamb = 25r C
0.04
0.03
Specification limit:
Typical: THD < 0.4%
0.02
0.01
20
Figure 15. Frequency response
Test conditions:
Vcc = 25 V,
RL = 8 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W,
Tamb = 25r C
Specification limit:
Max: +/-3 dB (20 Hz to 20 kHz)
+1
+0.5
-0
dBrA
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
-4.5
-5
-5.5
-6
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 20k
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k
20k
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Doc ID 14926 Rev 5