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.

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.