Distortion Vs Output Power; Distortion Vs Frequency; Modular Application Derating Rload Vs Vsupply; Modular Application Pd Vs Vsupply - Onkyo HTP-420 Service Manual

TDA7293
Figure 9: Distortion vs Output Power
T.H.D (%)
10
5
2
1
0.5
0.2 Vs = +/-29V
Rl = 4 Ohm
0.1
0.05
0.02
f = 1KHz
0.01
0.005
0.002
0.001
2 5
Figure 10: Distortion vs Output Power
T.H.D (%)
10
5
2
1
Vs = +/-40V
0.5
Rl = 8 Ohm
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
2 5
Figure 11: Distortion vs Frequency
T.H.D. (%)
10
1
VS= +/- 35 V
Rl= 8 Ohm
0.1
Pout=100 mW
0.01
0.001
0 0.1
Frequency (KHz)
12/15
f = 20 KHz
10 20 50
Pout (W)
f = 20 KHz
f = 1KHz
10 20 50
Pout (W)
Po=50 W
1 10
Figure 12: Modular Application Derating Rload
vs Vsupply (ref. fig. 7)
6
5
4
3
2
1
0
100 20 25
Figure 13: Modular Application Pd vs Vsupply
(ref. fig. 7)
60
Dissipated Power for each
50
device of the modular
application
40
30
20
10
0
100
20 25
Figure 14: Output Power vs. Supply Voltage
Po (W)
120
110
100
Rl=8 Ohm
90
f= 1 KHz
80
70
60
50
40
30
20
10
0
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
100
Forbidden Area
Pd > 50W at T =70°C
case
30 35 40 45
Supply Voltage (+/-Vcc)
Pd limit at Tcase=70°C
4ohm
8ohm
30 35 40 45
Supply Voltage (+/-Vcc)
T.H.D.=10 %
THD=0.5 %
Vs (+/-V)
50
50