DP83867IR: Power Up sequencing requirement - DP83867IRPAP

Gopi Narayanan

Part Number: DP83867IR

Tool/software:

Hi Team,

Could you please confirm whether we need to follow the power sequencing below for the DP83867IRPAP Ethernet Transceiver?

-> 2.5V -> 1.1V -> VDDIO (3.3V)?

Note: I am using a Two-supply configuration, and VDDA1P8 is left unconnected.

Is it acceptable to supply 1.1V and 3.3V at the same time, and the provide 2.5V afterward?

Thanks in advance!

Best Regards,

Gopi.

0 Alvaro (Al-vuh-roe) Reyes 11 months ago

Hi Gopi!

Yes, this is okay. The only Power supply sequencing requirement is in regards to VDDA2P5 and VDDA1P8.

Regards,

Alvaro

0 Gopi Narayanan 11 months ago in reply to Alvaro (Al-vuh-roe) Reyes

Thanks, Alvaro.

"Is it acceptable to supply 1.1V and 3.3V at the same time, and the provide 2.5V afterward?"

For a double confirm, could you please check the block level approach below and confirm the above question?

Thank You!

Gopi.

0 Alvaro (Al-vuh-roe) Reyes 11 months ago in reply to Gopi Narayanan

Hi Gopi!

Yeah this looks good!

Regards,

Alvaro

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