TX max power impacted if usng 1.8V on VDD

Hi Nordic engineer

I am evaluating a project based on nRF52840 and there is a question need to be confirm before schematic design start.

Due to limitation of power resource , I can only provide 1.8V as power supply for nRF52480. I checked the datasheet and find VDDH could be unused and keep floating , only 1.8V for VDD could be OK. I am curious about max TX power +8dBm would be decreased or not if only 1.8V used on VDD(no connection on VDDH)

Thanks for support !

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