I'm designing a board with LAN8720 and LPC1768.
LPC's ADC and LAN's magnetics connections require analog 3.3V power.
Should I separate these two analog power planes with a ferrite as I separate it from digital 3.3V power plane? Or is it OK to use only one analog 3.3V power plane?
I edited this message and added below picture. Ethernet PHY(LAN8720) to magnetics connection and LPC1768 ADC is using 3.3V analog power. Is it better to keep them separate as I draw in the picture?