IsoPower on-chip decoupling

Hi,

I'm wondering whether or not there is any on-chip capacitance built into the ADuM6200 or does the IsoPower oscillator solely depend on the external decoupling?

If on-chip decoupling exists, can someone supply to me the value of the on-die/on-chip capacitor with parasitic inductance and ESR?

Best regards,

Kristian