Platform forum

Question about decoupler placement and fanout under CPU.

tadzio , 06-29-2020, 07:42 AM
Hey So I am going through the Advanced PCB Layout course and am mostly done with my fanout under the CPU and placement of caps / fb's. I think I have around 10 left or so, but I am starting to run into issues where there is just no way to keep all decouplers close. For example I will have a 100nF and a 4.7uF cap that need to be placed close to a pin. If I can only really fit one of them close to the pin, is there any preference on weather it should be the 100nF or 4.7uF?

I can see that it is a very iterative process to do a successful fanout, and am trying to get through it. Any help / advice is appreciated.
robertferanec , 07-01-2020, 07:20 AM
place smaller capacitance closer the the pin
Use our interactive Discord forum to reply or ask new questions.
Discord invite
Discord forum link (after invitation)

Didn't find what you were looking for?