TDA7492E Datasheet, PDF (16/24 Pages) STMicroelectronics – 79 W + 79 W dual BTL class-D audio amplifier

Characterization curves
TDA7492E
6
6.1
Characterization curves
Unless otherwise stated, measurements were made under the following conditions:
VCC = 22 V, Rl = 6 Ω, f = 1 kHz, Gv = 20.8 dB, ROSC = 33 kΩ, Tamb = 25 °C.
Note: Maximum output power must be derated according to case temperature.
Stereo configuration
The following characterization curves were made using the TDA7492E demonstration
board (Figure 7: "Application circuit"). The characterization curves were made under the
following test conditions:
Vs = 7 and 26 V, Rl = 6 Ω, Rosc = 33 kΩ, Cosc = 100 nF, Gain = 20.8 dB and Tamb = 25°C
unless otherwise specified.
Figure 8: Output power vs. supply voltage
Figure 9: THD vs. Pout (Vs = 26 V, f = 1 kHz)
10
5
2
1
0.5
Vs=26V, Rl=6 Ω, f=1kHz
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10m 20m 50m 100m 200m 500m 1 2 5 10 20 50
Pout (W)
Figure 10: THD vs. Pout (Vs = 26 V, f = 100 Hz)
10
5
2
1
Vs=26V, Rl =6 Ω , f=100 Hz
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10m 20m
50m 100m 200m 500m 1 2
Pout (W)
5 10 20 50
Figure 11: THD vs. Pout (Vs = 26 V, f = 6 kHz)
10
5
2
1
Vs=26V, Rl =6 Ω , f=6kHz
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10m 20m
50m 100m 200m 500m 1 2
Pout (W)
5 10 20 50
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