Datasheet

TDA7419 Description of the audio processor
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4.7.2 Center frequency
Figure 14 shows the four possible center frequencies 500 Hz, 1 kHz, 1.5 kHz and 2.5 kHz.
Figure 14. Middle center frequencies @ gain = 14 dB, Q = 1
4.7.3 Quality factors
Figure 15 shows the four possible quality factors 0.5, 0.75, 1 and 1.25.
Figure 15. Middle quality factors @ gain = 14 dB, fc = 1 kHz