In the datasheet of AD9978, It’s said page 23:
"Note that the same 1.8 V supply must be used for all of the 1.8 V supply pins"
It means we are sharing the power supply for Analog and Digital Supply pins (AVDD1, AVDD2, AVDD3 and DVDD, LVDD).
What does It actually mean? I should use the same LDO but should/could I use a L-C filter to separate Analog from noisy Digital pins?
Same question for 3.3V supply.