Hi Wayne,
> On 18 Sep 2018, at 23:20, Wayne Stambaugh wrote:
>
> On 9/18/2018 7:20 AM, Jeff Young wrote:
>> When calculating obstacles we currently use the diff-pair gap as a
>> clearance between a diff-pair trace and a diff-pair pad.
>>
>> I’m pretty sure that’s wrong. I’m just not sure how
On 9/18/2018 7:20 AM, Jeff Young wrote:
> When calculating obstacles we currently use the diff-pair gap as a
> clearance between a diff-pair trace and a diff-pair pad.
>
> I’m pretty sure that’s wrong. I’m just not sure how wrong.
>
> I suspect the diff-pair gap shouldn’t be used as a clearance
Agreed. Diff pairs should have an associated clearance rule to other
objects and it has nothing to do with the gap.
One place where the gap should be used is in manual tuning of the pair. If
I route a pair and end it on a component that necessarily has non-symmetric
pad fanout, I might want to
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