Datasheet

Description of the audioprocessor TDA7418
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4.8 Treble
There are two parameters programmable in the treble stage:
4.8.1 Attenuation
Figure 16 shows the attenuation as a function of frequency at a center frequency of
17.5kHz.
Figure 16. Treble control @ f
C
= 17.5 kHz
4.8.2 Center frequency
Figure 17 shows the four possible center frequencies 10k, 12.5k, 15k and 17.5kHz.
Figure 17. Treble center frequencies @ Gain = 14dB
4.9 Speaker attenuator
The four speakers have independent soft step speaker controls. And their attenuators can
be adjusted from +15dB to -79dB with 1dB steps.
4.10 Subwoofer attenuator
The Subwoofer output is a single ended mono output. The attenuator is exactly the same
like the other speakers.