TDA7405 Datasheet, PDF (18/56 Pages) STMicroelectronics – EQUALIZER CARRADIO SIGNAL PROCESSOR

TDA7405
2.9.1 Equalizer-Setup
The two Filters can be configured in multiple ways in order to cover as most as possible applications. Both filters
can be programmed to be either in the front- or in the rear-path, respectively. This feature enables to have e.g.
the High-Filter in the front- and both filters in the rear-path.
Figure 13. Equalizer Configuration
2.9.2 Attenuation
Figure 14 shows the attenuation as a function of frequency at a center frequency of 625 Hz.
Figure 14. Gain/Attenuation of EQ-Filter
15
dB
10
5
0
-5
-10
-15
2e+01
18/56
1e+02
1e+03
1e+04 Hz 2e+04