Hello, this is my first post on this fourm. Do we have people here working on schematic design and pcb layout ?
Yes, we do. What’s your question?
I have seen in some designs that analog reference ground plane is separated from digital reference ground plane. I guess this is to isolate digital switching from analog plane. But do we need to connect them together at one point in the PCB, normally near connector, is that correct ?
If you separate the two planes completely then the usual method is to either tie them together directly (at some appropriate place, like the input connectors or tie them together with a ceramic capacitor (or sometimes a small resistor).
1 Like
Yes, I also have seen another design layout in which they have two via near the main power connector with a text on the silkscreen that short them with 1.6 mm diameter lead. I did not find this in schematic but in the layout design they have it. Thanks again for reply.
1 Like