2017-06-16 9:07 GMT+02:00 Luke Kenneth Casson Leighton lkcl@lkcl.net:
On Fri, Jun 16, 2017 at 8:03 AM, mike.valk@gmail.com mike.valk@gmail.com wrote:
Speaking of near the edge. The tracks on the board seem awfully close the boards cutoff edge.
yyep they are.
Doesn't that create a problem for cutting them out?
no but it does cause an imbalance in the differential pairs unless the tracks come in dead-straight from the left, and it also means that ground shielding isn't possible.
normally the connector would be at least 20-30 mil away from the edge so that ground vias could be placed all along the right-hand edge. that's near-flat-out impossible. the best that can be hoped for is that the three pins (in grey) which are GND will do the job of creating an EMI shield instead.
I was talking about the photo's not the connector.