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Advice in proper grounding

Funkthurm , 04-30-2021, 06:43 AM
hello all,

iam new to this forum and need some hints in properly routing ground of a mixed signal pcb. sorry for my englisch skills

robertferanec , 05-03-2021, 01:50 AM
- I do not know much details about your design, but normally I try to have a solid GND as the second layer under components.
- when I have analogue on one side and digital on the opposite site, I always try to have separate solid GND planes for them (means at least two solid GND planes in my stackup directly under outer layers, one for digital, one for analogue)

But I do not do much mixed boards, I may not be the best to help.
qdrives , 05-03-2021, 08:12 AM
Does this video https://www.youtube.com/watch?v=52fxuRGifLU talk about a better 4 layer stack-up? Sig - Gnd - Gnd - Pwr/Sig. Otherwise there are more Rick Hartley video's that show it.
Route the power, I doubt you need many amps of current.
Both analog and high(er) speed digital need good return paths.
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