TDA7561 Datasheet, PDF (7/19 Pages) STMicroelectronics – MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

Figure 6. Distortion vs. Output Power (2Ω)
THD (%)
10
Vs = 14.4 V
RL = 2 Ohm
1
f = 10 KHz
0.1
f = 1 KHz
0.01
0.1
1
10
Po (W)
Figure 7. Distortion vs. Frequency (4Ω)
THD (%)
10
Vs = 14.4 V
RL = 4 Ohm
Po = 4 W
1
0.1
0.01
10
100
1000
f (Hz)
10000
Figure 8. Distortion vs. Frequency (2Ω)
THD (%)
10
Vs = 14.4 V
RL = 2 Ohm
Po = 8 W
1
0.1
0.01
10
100
1000
f (Hz)
10000
TDA7561
Figure 9. Crosstalk vs. Frequency
CROSSTALK (dB)
90
80
70
60
Vs = 14.4 V
RL = 4 Ohm
50
Po = 4 W
Rg = 600 Ohm
40
30
20
10
100
1000
f (Hz)
10000
Figure 10. Supply Voltage Rejection
vs.Frequency
SVR (dB)
90
80
70
60
50
Rg = 600 Ohm
40
Vripple = 1 Vpk
30
20
10
100
1000
f (Hz)
10000
Figure 11. Power Dissipation & Efficiency
vs.Output Power (4Ω, SINE)
Ptot (W)
90
n (%)
90
80
Vs = 14.4 V
70
RL = 4x4 Ohm
f= 1 KHz SINE
60
n
80
70
60
50
50
Ptot
40
40
30
30
20
20
10
10
0
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Po (W)
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