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Altera_Forum's avatar
Altera_Forum
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14 years ago

HD-SDI another methord?

i wanna realize HD-SDI on the CYCLONE series which don't support HD-SDI Megacore, is there any metnord can help me?:)
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

You need to oversample data at least 5/4*clk speed like it is in SD-SDI non-transceiver mode. The line is 270MHz and oversample clocks are 337.5MHz and 337.5MHz+90deg.

HD-SDI has 1.485Gbps link, so the speed is much much higher. Do the math, what oversample speed do You need and You'll see thats its impossible in any ways. I even had problems with SD-SDI internal clocking...