SGTL5000: only one DAP available??

[our]

Do I understand right that I should choose where to use the single available DAP:

in ADC ---> I2S path

or in I2S ---> DAC path?

Isn't it a strange approach?

[igorpadykov]

Hi Alex

one can look at programming steps in sect.2.2.3 Input/Output Routing

AN3663 SGTL5000 Initialization and Programming

http://cache.freescale.com/files/analog/doc/app_note/AN3663.pdf 

Best regards
igor
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[our]

Igor,

During the last work night I already ended up with working design, so I am not at the beginning.

Now I use DAP in the path of I2S ---> DAC,

but in the path of ADC ---> I2S I also need some filtering, but I cannot see the second DAP.

So I want to know definitely:

1) Genious designers of the IC are sure that everybody need filtering only in one path (actually, almost everybody need both).

2) I am so stupid that I can not find the second DAP (at least a few biquads for a IIR filter).