[SI-LIST] delay tuning method of differential pair
- From: "pcbtime" <pcbtime@xxxxxxxx>
- To: "si-list" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 19 Nov 2013 18:33:14 +0800
Hi Expert
I was confuse about the delay tuning method. We have two choice: Single loop
or small serpentines
Single loop can match the length quickly then small serpentines. That's mean:
Single loop has big different when tuning but short time.
small serpentines has small different when tuning but takes long time.
We try to simulation the result is below 12.5GHZ. We can't find any different
in SDD21 and SDD11
That's mean Single loop and small serpentines is almost same when signal is
below 8GBps
Why most the design guide force to use small serpentines
And I am so sorry for send two mail with unreadable code
Best Regards
pcbtime------------------------------------------------------------------
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