0.5mil Length Matched Diff Pairs

Customer's Requirements for 0.5mil Length matched Signals within the pairs.

Example
Sawtooth settings based on 6mil / 6mil (trace / gap) Diff Pair

Tip:

You have to select the type of tuning before you start tuning a net. 

Hit Tab Key before you start the length matching

Thank you Wayne :)

AD19.1.7 - Pushing Tracks and Differential Pairs

Some routing issues have been reported which are related to the new glossing algorithm.

Altium forum link: I'm not drinking the ad18/19 Koolaid

Solution: Use the Legacy Glossing

Preferences > System > General > Advanced button > Check "Legacy.PCB.InternalGloss" > Close > OK > Restart AD

Thank you Tim !

Diff Pair not starting from selected tracks. Diff Pair Gap Setting ?

That's it !

Differential Pairs - Rules

In AD14 Differential Pairs width and gap rules are combined.

"Improvements to the differential pair rule definition, the ability to cycle the width-gap setting, and support for room-based rule scoping were added in Altium Designer 14."

Rule Definition for Differential Pair Routing - Altium   

 In AD14 Width and Gap are set up in a single rule.



 In AD13 Width and Gap are set up using a Differential Pair rule and a Trace width rule.

 AD13 Gap Rule for Differential Pair

AD13 Width rule for Differential Pair

Matched Length Rules are the same in AD13 or AD14.


Tip: For Forward and Backward compatibility you can leave the AD13 rules in a design and update the new AD14 Differential Pair Rule using the sittings found in the two AD13 rules.

Altium Bug Crunch #960

Altium Bug Crunch #960: Altium Live Log in Required

Smart Length and Length Matching in PCB Editor

Fix in Development ?

'via Blog this'

PCB - Differential Pairs

AD13 Differential Pair Rules defined in the PCB.

Add Class


Add, Delete or Edit Pairs


Select Positive and Negative Nets and Enter Name