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Altera_Forum's avatar
Altera_Forum
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15 years ago

PLL GNDAx and GND in CYCLONE IV E series

We are using EP4CE55F23I8LN.

Is GNDAx & GND internally short ?

Is GNDA1, GNDA2, GNDA3 & GNDA4 are internally short ?

Is all digital GND are internally short ?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    not sure, but you should still connect all of the grounds (if that's what you're trying to avoid)

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- Quote Start ---

    not sure, but you should still connect all of the grounds (if that's what you're trying to avoid)

    --- Quote End ---

    Thanks for your quick reply.:)

    But do you know the Analog GND & the Digital GND are internally shorted or having some resistance or isolated ?