1 Reply Latest reply on May 26, 2011 12:54 PM by weston_beal

    HyperLynx Jitter Setting

    xuezhuan.gu

      Hi,

      When we do the SI simulation, do we need to set the jitter?

      for example, some datasheets have clock jitter, if we simulate this clock, do we need set the jitter?

      but if we simulate data, datasheets have no data jitter, so how we set its jitter?

       

      for a source-synchronization system, we don't need to consider this jitter beacause clock and data have same jitter, so if we need set clock or data jitter?

       

      maybe many engineers refer to data[ n : 0 ] skew as jitter, I know this skew, I don't need to set this skew here.

       

      Thanks.

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        • 1. Re: HyperLynx Jitter Setting
          weston_beal

          As usual, it depends. If you are trying to evaluate a channel response to jitter, then you might want to add it into the stimulus. Or, as you said, if you have a jitter specification for a clock signal, then it would be informative to add that jitter into the clock stimulus to see what that does to the signal at the receiver. If you don't have a jitter specification for the transmitter and you don't have another reason to add it, then it makes sense to disable the jitter option.