group delay of ADAU1401 and of ADAU1777

Hi

ADAU1777 :

From ADAU1777 information I understood that the group delay from ADC to DAC < 30usec , in 192Khz

Is there group delay information from DAC  to ADC , in 192Khz ?

ADAU1401

Is there group delay information from ADC to DAC , in 192Khz ?

Is there group delay information from DAC  to ADC , in 192Khz ?

Is there a max sample frequency limit?

Thanks