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Altera_Forum
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15 years ago

Understanding training patterns for Stratix-II deserializer DPA

Hi, I am trying to figure out requirements for Dynamic Phase Alignment (DPA) as implemented by LVDS receiver (non-GXB) in Altera Stratix-II family. The device handbook provides very limited inf...
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Altera_Forum
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15 years ago

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Out of curiosity, what is the data rate? Do you have an idea how much the data skews?

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1000 MBps. Uncomfortably close to 1040 MBps maximum specified in the handbook.

No, I have no idea by how much clock/data relationship floats over time and temperature. I thought that it shouldn't be no more than 100-200 ps, but the practice proved me wrong. So I don't try to guess anymore and direct measurements are rather difficult to setup.