TDA749213TR Datasheet, PDF (18/32 Pages) STMicroelectronics – 50 W + 50 W dual BTL class-D audio amplifier

Characterization curves
TDA7492
4.3
Characterizations for 4-Ω loads
Figure 19. Output power vs. supply voltage
Test conditions:
Vcc = 15 - 22 V,
RL = 4 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 20 dB,
Tamb = 25r C
Specification limit:
Typical:
Vs = 20 V, RL = 4 Ω,
Po = 47 W at THD = 10%,
Po = 38 W at THD = 1%
3RXW YV 9FF






10% THD
1% THD
       
9FF9
Figure 20. THD vs. output power (1 kHz)
Test conditions:
Vcc = 20 V,
RL = 4 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 20 dB,
Tamb = 25r C
10
5
THD + N
%
2
1
0.5
0.2
Specification limit:
Typical:
Po = 38 W at THD = 1%
0.1
0.05
0.02
0.01
100m
200m
500m
1
2
5
10
20
50
Output power (W)
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Doc ID 14926 Rev 5