TDA7297 Просмотр технического описания (PDF) - STMicroelectronics
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TDA7297 Datasheet PDF : 9 Pages
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TDA7297
Figure 4: Distortion vs Output Power
Figure 5: Distortion vs Output Power
T HD(%)
10
1
Vcc = 16.5V
Rl = 8 ohm
THD (% )
10
1
Vcc = 12 V
Rl = 8 ohm
f = 15KHz
f = 5KHz
0 .1
f = 15KHz
f = 5KHz
0.1
f = 1KHz
f = 1KHz
0.010
0 .1
1
Pout (W)
10
20
0.010
0.1
1
10
Pout (W)
Figure 6: Distortion vs Frequency
T HD(%)
10
V cc = 16.5V
Rl = 8 ohm
1
0.1
0 .0 10
100
Pout = 100m W
Pout = 5W
1k
frequency (Hz)
Figure 7: Frequency Respone
10k
20k
Le ve l(d Br)
5.0000
4.0000
3.0000
2.0000
1.0000
0.0
- 1.00 0
- 2.00 0
- 3.00 0
- 4.00 0
- 5.00 0
10
Vc c = 1 6 .5 V
Rl = 8 ohm
Pou t = 1W
100
1k
10k
fre q u en cy (Hz )
100k
Figure 8: Output Power vs Supply Voltage
Po (W)
2 0 .0 00
1 8 .0 00
1 6 .0 00
1 4 .0 00
Rl = 8 ohm
f = 1K H z
1 2 .0 00
1 0 .0 00
8.0000
d = 10%
6.0000
4.0000
d = 1%
2.0000
0.0
6. 000 7.0 00 8.0 00 9. 0 00 10. 00 11 .0 0 12. 00 13. 00 14. 00 15 . 00 16. 00 17. 00 18. 00
Vs(V)
6/9
Figure 9: Total Power Dissipation & Efficiency vs
Output Power
Ptot(W)
µ(%)
16
80
75
14
70
65
12
P tot
µ
60
55
10
50
45
8
40
Vcc = 16.5V
35
6
Rl = 8ohm (both channels) 30
f = 1KHz
25
4
20
15
2
10
5
0
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
2XPout(W)
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