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Question about AM4379

N

Nigella

New Member
Dec 22, 2021
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Hi,

I have one doubt in am437x design that is in gigabit ethernet PHY chip design.

As per the datasheet of KSZ9031RNXCA (PHY chip) AVDDl, DVD-DL, and AVDDL_PLL maximum voltage are 1.8V.

But the design applied 3.3V through P channel Mosfet.

I know it is working fine in EVM.

Is there any reason to give 3.3V?
 

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