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TDA7850A Datasheet, PDF (10/16 Pages) STMicroelectronics – 4 x 50 W MOSFET quad bridge power amplifier plus HSD
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Electrical specifications
TDA7850A
Figure 8. Distortion vs. output power
(RL = 2Ω)
THD (%)
10
VS = 14.4 V
RL = 2Ω
1
0.1
0.01
f = 10 KHz
f = 1 KHz
Figure 9. Distortion vs. frequency
(RL = 4Ω)
THD (%)
10
VS = 14.4 V
RL = 4Ω
1
Po = 4 W
0.1
0.01
0.001
0.1
1
10
Po (W)
Figure 10. Distortion vs. frequency
(RL = 2Ω)
100
AC00068
0.001
10
100
1000
10000
f (Hz)
Figure 11. Crosstalk vs. frequency
100000
AC00069
THD (%)
10
VS = 14.4 V
RL = 2Ω
1
Po = 8 W
0.1
0.01
0.001
10
100
1000
f (Hz)
10000
CROSSTALK (dB)
-20
-30
RL = 4Ω
Po = 4 W
-40
Rg = 600Ω
-50
-60
-70
-80
-90
-100
100000
10
100
AC00070
1000
f (Hz)
10000
100000
AC00071
Figure 12. Supply voltage rejection vs.
frequency
Figure 13. Output attenuation vs. supply
voltage
SVR (dB)
-20
-30
Rg = 600Ω
Vripple = 1 Vrms
-40
-50
-60
-70
-80
-90
-100
10
100
1000
f (Hz)
10000
OUTPUT ATTN (dB)
0
RL = 4Ω
Po = 4 W ref
-20
-40
-60
-80
-100
100000
5
6
AC00072
7
8
Vs (V)
9
10
AC00073
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