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Altera_Forum
Honored Contributor
Honored ContributorCyclone3-Overshoot/Undershoot
Hi, After PCB Design CIII – EP3C40 based board, in the post routing SI Simulation we are getting some overshoots and undershoots in DDR Signals and LVDS (As receiver) signals. As we are using DDR1 s...
Altera_ForumHonored Contributor
Honored ContributorI would not expect problems from the crosstalk with DDR signals. The resisdual ringing with LVDS signals is also acceptable, although it could be most likely removed with better placement of termination resistor. But no problem at all.
