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Altera_Forum's avatar
Altera_Forum
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15 years ago

EP2C5t144C8N pll clock in range...

Hello!

Can i drive the pll of this device (EP2C5t144C8N) at 25MHz? The pll is capable to lock with this input freq?

tnx!!!

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    Yes, the minimum input frequency is 10 MHz. You should check however, if the PLL is able to generate all intended output frequencies with 25 MHz input clock.

  • Altera_Forum's avatar
    Altera_Forum
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    Ok, thank you!

    i need generate 80 Mhz clock out, and with 25 Mhz i can do it..

    best regards, Luca, VITROCISET Spa, ITALY
  • Altera_Forum's avatar
    Altera_Forum
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    Yes, e.g. with 400 or 800 MHz VCO frequency. The easiest way to find out is to start the Quartus Megawizard.

    Regards, Frank