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Altera_Forum
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16 years ago

Creating a 3:1 Clock Mux

hi, I am new here. I don't know if this is the correct place for my question. So my setup: I have a 148.5MHz VCXO and a 67.5MHz VCXO clks coming into a Stratix II GX EP2SGX901508C3. Right now, ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

You would need to enable dynamic PLL reconfiguration on the second PLL so that you can reconfigure it at runtime for the correct input frequency.

I am actually curious to see if anyone else responds with some other approaches. I have needed to mux 3 clocks before as well.