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 Length matching within differential pair?
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cioma

125 Posts

Posted - 10 Aug 2016 :  12:35:27  Show Profile  Reply with Quote
Does Pulsonix support length matching within differential pair like on this picture?


8.49 KB

It's something like serpentine function but within a diffpair (i.e. only one track is serpentined).

I assume it's possible if differential pairing is removed from a segment of the diffpair and then manually editing that segment but it would be nice to be able to do it without removing deferential pairing.

steve

United Kingdom
316 Posts

Posted - 10 Aug 2016 :  14:15:57  Show Profile  Visit steve's Homepage  Reply with Quote
When a serpentine is required to meet a length difference rule it has to go in a track segment as it cant go in the diff segments otherwise they would not be diff paired traces.

For note: Serpentine is going interactive in Version 9.

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tystephens

United Kingdom
23 Posts

Posted - 10 Aug 2016 :  14:18:45  Show Profile  Reply with Quote
Differential pair skew is part of V9, at present in V8.5, if you wish to increase the length of one side of a differential pair, you would indeed need to 'Remove differential pair' and add the length to the one side.

In V9 you will be able to maintain a differential pair and add length to one side interactively.

Thanks,

Ty



Image Insert:

56.91 KB

Edited by - tystephens on 10 Aug 2016 14:22:01
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cioma

125 Posts

Posted - 10 Aug 2016 :  14:21:01  Show Profile  Reply with Quote
Thanks, Steve, it's quite an easy workaround.

It seems v9 will have a lot of improvements as far as constraint management and high-speed design is concerned.
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tystephens

United Kingdom
23 Posts

Posted - 10 Aug 2016 :  14:23:53  Show Profile  Reply with Quote
quote:
Originally posted by cioma

It seems v9 will have a lot of improvements as far as constraint management and high-speed design is concerned.



Indeed - not long now though!
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