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21615 Discussões

VCCA connections if device doesn't use PLLs

Altera_Forum
Colaborador honorário II
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Do I need to connect the Ferrite bead to my VCCA if I am not using any PLLs in my design?

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3 Respostas
Altera_Forum
Colaborador honorário II
765 Visualizações

the short answer is yes. see a related thread on this: 

http://www.alteraforum.com/forum/showthread.php?t=70 

 

-rm
Altera_Forum
Colaborador honorário II
765 Visualizações

What if I am not using any PLL in my device at all? i.e. none of the PLLs is configured?

Altera_Forum
Colaborador honorário II
765 Visualizações

In that case, No, you do not need to connect the ferrite bead or decoupling capacitors if you are not configuring any PLLs in your design. It is advisable though, if you want to use the PLLs in the future.

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