We've been pondering several things over here in TeraspeedLand (sung to the tune of JungleLand, by Bruce Springsteen)
------------------------------------ Given a SerDes channel where: * the Tx reference clock is based upon an external clock with it's own unique stochastic properties * the reference clock is then forwarded from the Tx to the Rx * the Receiver uses the forwarded clock as the reference for a CDR * there are both deterministic and random components to the clock noise statisticsHow would IBIS-AMI be used to model the impact of PLL jitter transfer, amplification, and noise-injection, along with integrating that into modeling and simulation of the PLL loop dynamic effect on DFE cascade errors?
------------------------------------ Given a SerDes receiver where: * the reference clock is derived from an external clock source with it's own deterministic and random stochastic noise profile * * How would IBIS-AMI be used to model the impact of these noise sources on the PLL loop dynamics, and their subsequent impact on equalization and data recovery? ------------------------------------- Given compliance correlation studies on a serdes receiver: * how can noise injected into the reference clock be modeled, along with it's impact on equalization and data recovery? ------------------------------------- As you can see, I'm wondering how clock "stuff" fits into the flow. regards, Scott -- Scott McMorrow Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 (401) 284-1827 Business (401) 284-1840 Fax http://www.teraspeed.com Teraspeed® is the registered service mark of Teraspeed Consulting Group LLC