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Altera_Forum's avatar
Altera_Forum
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8 years ago

Cyclone II PLL clock multiplier

Hi, I'm looking for a way to take an unknown external clock in the range 1-5MHz and from it generate an internal clock that is exactly four times that external clock. I've been reading various...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

As pointed out, 1-5MHz is too slow for an Altera PLL. You'll need a dedicated clock multiplier chip, they are cheap and abundant from multiple sources.