TDA7575B Datasheet, PDF (13/32 Pages) STMicroelectronics – 2 x 75W multifunction dual-bridge power amplifier with integrated digital diagnostics

TDA7575B
Electrical characteristics curves
Figure 15. Cross talk vs. frequency
(LD mode)
Figure 16. CMRRR vs. frequency
CROSSTALK (dB)
-20
-30
LD mode
Vo=1 Vrms
-40
RL=100 Ohm
-50
-60
-70
-80
-90
-100
10
100
1000
f (Hz)
CMRR (dB)
-40
Vcm=1 Vpp
-50
-60
-70
10000
100000 10
100
1000
f (Hz)
10000
100000
Figure 17. Output attenuation vs. supply
voltage (vs. dependent muting)
Figure 18. Output attenuation vs. mute pin
voltage
OUT ATTN (dB)
20
0
0 dB=1 Vrms
RL=2 Ohm
-20
OUT ATTN (dB)
20
0 dB=2 Vrms
0
RL=2 Ohm
-20
-40
-40
-60
-60
-80
-80
-100
-120
-100
5
6
7
8
9
10
1
1.5
2
2.5
3
3.5
4
Vs (V)
MUTE PIN V (V)
Figure 19. Power dissipation vs. output power Figure 20. Power dissipation vs. output power
(4Ω - SINE)
(2Ω - SINE)
Ptot (W)
35
30
Vs=14.4V
RL=2 x 4 Ohm
f=1 KHz
25
20
15
10
5
STD
HI-EFF
Ptot (W)
60
Vs=14.4V
50 ^{RL:=2 x 2 Ohm}
f=1 KHz
40
30
20
10
STD
HI-EFF
0
0.1
1
10
Po (W)
0
100
0.1
1
10
100
Po (W)
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