TDA7402_07 STMICROELECTRONICS [STMicroelectronics], TDA7402_07 Datasheet - Page 25

• Manufacturer Part Number: TDA7402_07
• Description: Car radio signal processor
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

TDA7402
4.8
4.9
Subwoofer application
Figure 15. Subwoofer application with LPF 80/120/160Hz and HPF 90/135/180Hz
Both filters, the lowpass and the highpass-filter, have butterworth characteristics so that their
cut off frequencies are not equal, but shifted by the factor 1.125 to get a flat frequency
response.
Voice band application
Figure 16. Voiceband application with HPF 300/450/600/750Hz and LPF 3k/6kHz
dB
dB
-10.0
-20.0
-30.0
-40.0
-50.0
-10.0
-20.0
-30.0
-40.0
-50.0
0.0
0.0
10.0
10.0
100.0
100.0
Hz
Hz
1.0K
1.0K
Audioprocessor part
10.0K
10.0K
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