On Aug 16, 2017, at 23:28, "mike.v...@gmail.com" <mike.v...@gmail.com> wrote: > > 2017-08-17 1:01 GMT+02:00 Richard Wilbur <richard.wil...@gmail.com>: >>> On Aug 15, 2017, at 23:31, Luke Kenneth Casson Leighton <l...@lkcl.net> >>> wrote: >>> if i just take *out* the ground intermediary traces that would do the >>> trick of bringing the impedance back up, is that right? >> >> Should be a major step in the right direction. >> > > How about the ground plane below the traces... That's a major stray > capacitance and closer than the "narrow" surrounding GND traces?
The ground plane would be stray except we designed it into the single-ended and differential impedance. At this point it is integral to our differential microstrip geometry. (See my original post in the thread "HDMI High-Frequency Layout: Impedance".) _______________________________________________ arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netb...@files.phcomp.co.uk
