>> lol. this is a 6 layer board? it could probably be hand-routed on 2 >> layer and if design actually needs 4 layer for whatever reason, but 6? >> wtf. > > Grounding. High speed. EMI .... see my long post where I explain what > this board shall do. > > The preamp that shall drive the inputs to this board has a > gain-bandwidth of 1GHz (ADA4817). > > I tried with 4 layers and gave up at some point. It can be done, but > compromises some of the issues mentioned for no good reason. Any reason > not to use six layers, except for slightly higher cost?
yeah, blogged the above without reading the long explanation. > > -- > Stephan > > > _______________________________________________ > geda-user mailing list > [email protected] > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user > _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
