Power related query for part#ADIN1300BCPZ-R7

Query
We are planning to use part#ADIN1300BCPZ-R7 in our new Design.

This part has AVDD pins for 3.3V supply input. Is it mandatory to provide clean supply to VDDA pins?

We have used 3.3V switchers on our carrier board for peripheral power. Can we connect it to AVDD or do we need to use external LDO for noise removal?