TDA7416_11 Datasheet, PDF (18/37 Pages) STMicroelectronics – Car radio signal processor

Description of the audio processor part
TDA7416
4.7
4.7.1
Equalizer filter
There are three parameters programmable in the equalizer filter:
Attenuation
Figure 9 shows the boost and cut response as a function of frequency at a center frequency
of 1kHz.
Figure 9. Equalizer filter control @ f_Center = 1kHz, Q = 1.0



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Center frequency
This parameter is programmable in the filter stage 1(62/100Hz), 6(4/6.34kHz) and
7(15/16kHz) only.
Figure 10 shows the center frequencies 62, 156, 396, 1000, 2510, 6340 and 15000 Hz of
the 7 equalizer filters.
Figure 10. Center frequencies @ Gain = 15dB, Q = 1.0










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Doc ID 9837 Rev 2