ADS131A04: Parasitic input capacitance of XTAL1 and XTAL2 pins

Hi Team,

For the external clock, a crystal will be used, the total capacitance is 9pF to get 16MHz, the parasitic input capacitance for XTAL1 and XTAL2 pins may have an effect on such low capacitance. So could you please tell the parasitic input capacitance of XTAL1 and XTAL2 pins? Thanks!

Best Regards!

Hao