TDA7402 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7402' PDF : 69 Pages View PDF
Audioprocessor part
TDA7402
3.9
Subwoofer application
Figure 15. Subwoofer application with LPF 80/120/160Hz and HPF 90/135/180Hz
0.0
-10.0
-20.0
dB
) -30.0
ct(s -40.0
rodu -50.0
P 10.0
100.0
1.0K
Hz
10.0K
lete Both filters, the lowpass and the highpass-filter, have butterworth characteristics so that their
so cut off frequencies are not equal, but shifted by the factor 1.125 to get a flat frequency
b response.
ct(s) - O 3.10
Voice band application
Figure 16. Voiceband application with HPF 300/450/600/750Hz and LPF 3k/6kHz
rodu 0.0
lete P-10.0
bso -20.0
O dB
-30.0
-40.0
-50.0
10.0
100.0
1.0K
Hz
10.0K
24/69
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