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Altera_Forum's avatar
Altera_Forum
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16 years ago

About the cycloneIII IO output speed

hi everybody I'm trying to use the EP3C25F324C8 to generate 250MHz clock as high speed AD（AD9481） clock，could it work？I don't know if the user IO (3V3 LVTTL)or PL...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

The AD9481 I using is driven by differential clock input, but datasheet is not point out the standard. The VCOM of the clock is about 1.25V, and 400mV Vp-p, maybe can driven by LVDS directly.