Datasheet

TDA7418 Description of the audioprocessor
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4.7 Middle
There are three parameters programmable in the middle stage:
4.7.1 Attenuation
Figure 13 shows the attenuation as a function of frequency at a center frequency of 1kHz.
Figure 13. Middle control @ f
C
= 1 kHz, Q = 1
4.7.2 Center frequency
Figure 14 shows the four possible center frequencies 500Hz, 1kHz, 1.5kHz and 2.5kHz.
Figure 14. Middle center frequencies @ Gain = 14dB, Q = 1
4.7.3 Quality factors
Figure 15 shows the four possible quality factors 0.5, 0.75, 1 and 1.5.
Figure 15. Bass quality factors @ Gain = 14dB, f
C
= 1kHz