Description of the audioprocessor

TDA7418

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4.3.3

Low & High frequency boost

Figure 6 shows the different Loudness shapes in low & high frequency boost.

Figure 6.

Loudness Attenuation, fc = 2.4kHz

4.3.4

Flat mode

In flat mode the loudness stage works as a 0dB to -15dB attenuator.

4.4

SoftMute

programmable slope. The mute process can either be activated by the SoftMute pin or by

regions (see Figure 7).

until the end of demuting.

Figure 7.

Softmute-Timing

1.

Please notice that a started Mute-action is always terminated and could not be interrupted by a change of

the mute-signal

1

EXT.

MUTE

+SIGNAL

REF

-SIGNAL

1

I

OUT

Time

D97AU634