[Open-graphics] Re: de-jittering
John Griessen
john at foseda.com
Thu Nov 29 23:42:37 EST 2007
Dieter wrote:
> Are you saying that there is ground bounce and crosstalk *inside*
> the FPGA? Kinda hard to beef up the ground inside someone else's
> chip. :-(
But there are routing options. Here's from the spartan3 spec:
Digital Clock Manager (up to four DCMs) - Clock skew elimination - Frequency synthesis - High resolution phase shifting Eight
global clock lines and abundant routing
Redoing the routing with other global clock lines in different locations could help.
900ps --> 100ps sounds too far.
John G
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