?lvaro Lopes wrote: > One idea is to have a separate ground for the RF part, and connect > it to digital ground at one point, forming some sort of ground peninsula,
Whether to split ground planes or not seems to vary mainly with the designer, less with the design. To take random examples from a quick google search, the pro-split side has a quite convincing example here: http://www.signalintegrity.com/Pubs/news/9_04.htm And so does the contra-split side (also check out the link to the 2001 article): http://www.hottconsultants.com/techtips/split-gnd-plane.html My interpretation is that splitting ground planes gives you more control, but at the cost of increasing complexity and the risk of unintended consequences. > We should also have these > ground planes (RF) filled with through-hole vias, to avoid EMI emission > (and maybe mitigate interferences). Putting that RF into a "cage" sounds good to me. This should also help to reduce ground impedance. - Werner _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
