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Altera_Forum
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8 years ago

LVDS Signal DC offset and AC Swing

Hi, What is the value of LVDS DC offset and LVDS AC Swing of Cyclone 10 GX devices?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

It's confusing that you are switching between the GPIO (post# 5) and transceiver (post# 7) output specification. As stated, they are different, they have separate paragraphs in the datasheet.

If your link uses a DC balanced coding like 8b/10b, AC coupling can easily shift the transceiver output to LVDS Vocm.