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

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

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Thanks for your quick reply.:)

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