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Altera_Forum
Honored Contributor
19 years agoHow to use LVDS?
in datasheet,i find maybe it isn't similar to use LVDS in Cyclone1,cyclone2,and cyclone3, so what can i do if i want to use LVDS? 1,does it need resistor? 2,how many wire i need ? in my opin...
Altera_Forum
Honored Contributor
19 years agoHello stephenzhou,
The cyclone device doesn't have CDR function, neither does stratix 1 and 2 on the LVDS port, so you should use it with reference clock. You don't need clock for each data line, and may be able to send 2bits data with one referece clock. I depends, however, on the frequency and board skew. Thanks,