TDA7388A Datasheet, PDF (8/13 Pages) STMicroelectronics – 4 x 42W quad bridge car radio amplifier

Electrical specifications
TDA7388A
2.4
Electrical characteristic curves
Figure 3. Quiescent current vs. supply
voltage
Figure 4. Output power vs. supply voltage
(4 Ohm)
I_d (mA)
200
190
V_in = 0
R_L = 4 Ω
180
170
160
150
140
8
10
12
14
16
Vs (V)
Figure 5. Distortion vs. output power
P_o (W)
45
40
R_L= 4Ω
35
f= 1 KHz
THD = 10%
30
25
20
THD = 1%
15
10
18
AC00531
5
8
9
10 11 12 13 14 15 16 17 18
Vs (V)
AC00532
Figure 6. Distortion vs. frequency
THD (%)
10
V_s = 14.4V
R_L = 4Ω
1
0.1
f = 10 KHz
f = 1 KHz
THD (%)
10
V_s = 14.4V
R_L = 4Ω
P_o = 4W
1
0.1
0.01
0.1
1
10
Po (W)
100
AC00533
0.01
10
100
1000
10000
f (Hz)
Figure 7. Supply voltage rejection vs.
frequency
Figure 8. Crosstalk vs. frequency
SVR (dB)
100
90
80
70
60
50
40 ^{Rg = 600Ω}
V_ripple = 1 Vrms
30
20
10
100
1000
f (Hz)
10000
SVR (dB)
100
90
80
70
60
50
R_L = 4Ω
P_o = 4W
R_g = 600Ω
40
100000
AC00535
30
10
100
1000
f (Hz)
10000
100000
AC00534
100000
AC00536
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