[SI-LIST] Re: Dynamic phase compensation in SERDES layout
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Mon, 14 Jan 2013 20:55:17 -0800
Skew impairs eye amplitude, width, and jitter. For the portion of time
that one signal in the pair is changing at the receiver and the other is
not, the slope seen by the receiver is basically half what it is when
both are changing.
Steve
On 1/14/2013 6:59 PM, Xiaoguang Tsai wrote:
> Hi, Experts,
> I'm very curious that why the dynamic phase compensation(DPC)/running skew
> compensation is necessary in high speed SERDES layout? And how the
> parameters about the DPC are defined (
> http://www.cadence.com/Community/blogs/pcb/archive/2010/11/03/what-s-good-about-differential-impedance-in-constraint-manager-see-for-yourself-in-spb16-3.aspx)?
>
>
>
> Thank you very much!!
>
> Xiaoguang Tsai
>
>
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