TDA7490SA 查看數據表（PDF） - STMicroelectronics
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TDA7490SA Datasheet PDF : 13 Pages
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TDA7490SA
2 Electrical characteristcs
Figure 5. output power vs supply voltage
(single)
Po(W)
14
12
10
8
6
4
Rl =6ohm
f = 1KHz
THD =10%
THD =1%
2
0
+14
+16
+18
+20
+22
+24 +26
Vs (V)
Figure 7. output power vs supply voltage
(single)
Figure 6. dissipated power vs output power
Pd(W)
3.5
3
2.5
Vs =+/- 13.5V
2
Rload = 8ohm (both ch)
f = 1KHz
1.5
1
0
2
4
6
8 10 12
2 x Po(W)
Figure 8. quiescent current vs supply voltage
Po(W)
12
10
8
Rl =4ohm
f = 1KHz
THD =10%
6
THD =1%
4
2
0
+14 +15 +16 +17 +18 +19 +20 +21 +22
Vs (V)
Iq(mA)
70
65
60
55
50
45
40
7
Rl = No load
No LC filter
8 9 10 11 12 13 14 15
Vs=(+/-V)
Figure 9. distortion vs output power
THD(%)
10
Vs=+/- 13.5V
1
Rl =8ohm
F = 1KHz
0.1
0.01
100m 200m 500m 1 2
Pout(W)
5 10
7/13
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