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Improve timing using multiple PLL

Altera_Forum
Honored Contributor II
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Hello all, 

 

In device like Cyclone V A9 there are 8 PLL. Generally I generate system clock from one PLL in normal mode but there is a way to improve timings using nearer PLL for some design parts using same system clock? 

 

Thank you
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Altera_Forum
Honored Contributor II
330 Views

I can better compensate remote locations with another PLL in sync with system clock?

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Altera_Forum
Honored Contributor II
330 Views

Usually clock tree is global and if an improvement occurs due to multiple PLLs then it is likely a matter of chance fitting.

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Altera_Forum
Honored Contributor II
330 Views

So just one PLL at time can be used and fitter chose the best?

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