I began working with Ethernet controllers and there is a recurring theme that keeps confusing me.
Currently I am incorporating the KSZ9031RNX into my design. The data sheet calls for digital and analog voltage supplies. My first thought is that I will need to incorporate a DAC in my PM circuitry.
However, when looking at the reference design for said chip, I notice that both supplies come from the same DC source, only to be separated by a FB. So does this mean the IC is taking care of the digital to analog conversion? I am just trying to understand this so I can move on.Thanks in advance.