Are the VCCD_PLL[1..n] power supplies connected to each other internally inside the device for Cyclone III devices?

Description

No, the VCCD_PLL[1..n] power supplies are not connected to each other internally for Cyclone® III devices. Each VCCD_PLL pin must be powered, even if the PLL is not used in your design.

Refer to the Cyclone III Device Family Pin Connection Guidelines (PDF) for further guidance on decoupling and isolation for this supply.

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