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Altera_Forum's avatar
Altera_Forum
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10 years ago

Clock data recovery

Hey, i am quite new to fpga stuff but in my current project i need to decode a 40MHz Manchester encoded signal. As far as I understood there are different ways to do this but one is to use a pll to r...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Just for clarity - A 40Mbps Manchester encoded stream potentially has transitions every 12.5ns. Thus you will need to oversample what is effectively an 80Mbps signal.

Cheers,

Alex