Cyclone V Core overpower effects

Hi Tobias,

you should consider this

- any assumptions about CV core timing with Vcc above specified 1.13V are void

- quite similarly, mobile DDR2 behaviour with supply voltage below 1.14 can't be predicted

- there must be a certain margin for power supply tolerances

VCCIO specifications are primarly a formal 5% band around the respective nominal voltage. Thus I expect that operating CV at 1.1V VCCIO is the lesser problem and won't necessarily involve a noticeable speed drop at all.

If saving switching regulators is your main objective, a 1.2 to 1.1 LDO could be considered. Still involving 9 % efficiency loss.

Regards,

Frank