> Traces from the pin to be decoupled (bypassed) to teh cap should be as > short as possible and as fat as possible. Nothing wrong with making a > small plane out of that because it provides a small additional "courtesy > capacitance", for free, to the ground plane below.
Comparison: http://www.delorie.com/electronics/powermeter/bypass-1.png The top is the "new" way, the bottom is the "old" way. I thought about adding a rectangle of copper under U30 tied to AVdd to act as a tiny cap, but I calculated it was only 0.2pF. Maybe I'll use the space to add a big fat GND trace instead. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user