If I count them up, I've made four designs on 4 layers and two designs on 2 layers.You are using the exact same crystal as me. This is very strange. Did you use 2 or 4 layers on the pcb? Did you place copper zones around the crystal? Does this really make that much of a difference? Was it just bad luck and everything will work out in the next batch? OK, I'll see. Thank you.
My 2-layer designs are mostly ground on the bottom side (and certainly no signal tracks under the crystal). I also have ground surrounding the crystal on the top side (I place a track there to remind my while routing and to make sure the ground fill I normally have on the top side reaches in there).
Here's the core of a 2-layer design I saved as a starting point for future designs; it's not perfect but it's reasonably good.
Statistics: Posted by arg001 — Wed Feb 07, 2024 10:17 am