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Altera_Forum's avatar
Altera_Forum
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14 years ago

Cyclone IV E LVDS output voltage

Two questions: 1. According to Cyclone IV E handbook, the LVDS output level is 2.5V. So if a 3.3V is supplied to an I/O bank VCCIO, all the differential I/O pairs located in this bank can not c...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

The operation is beyond specifications and you can hardly expect a reliable statement about "always work". Maximum speed and voltage levels may be different.