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TMels
Beginner
1,704 Views

X550-AT2 VCCA pins

The Pin Interface section of the Intel® Ethernet Controller X550 Datasheet lists VCCA pins as 1.0V power pins. Except from this, the pins are not mentioned at all in the document. The Electrical/Mechanical Specification section only describes 4 voltage rails:

VCC3P3, VCC2P1, VCC1P2, VCC0P83. From the reference schematics it looks like these pins should only connect to decoupling capacitors and no voltage source. Is this correct? Where is it documented?

Terje

0 Kudos
5 Replies
idata
Community Manager
80 Views

Hi Tmelsom,

Thank you for posting in Wired Communities. Let me check on this. Just to double check also are you referring to the diagram on page 1035 of the datasheet?

https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ethernet-x550-datasheet.pdf https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ethernet-x550-datasheet.pdf

Regards,

 

Sharon T
TMels
Beginner
80 Views

Page 1035 contains Figure 13-7. Power Supply Delivery Network. This does not mention the VCCA pins.

I am missing information in section 12.3 Power Delivery (starting on page 1000) where all other power rails are specified.

Best regards,

Terje

idata
Community Manager
80 Views

Hi Tmelsom,

 

 

Thank you for the clarification. I will further check on this.

 

 

Regards,

 

Sharon T
TMels
Beginner
80 Views

Hi Sharon,

Have you made any progress on this?

Regards,

Terje

idata
Community Manager
80 Views

Hi Tmelsom,

 

 

Thank you for the follow up and apologize if there is any delay. Please register at our Resource and Design center at https://www.intel.com/content/www/us/en/design/resource-design-center.html to gain elevated access to the documents available there or you may try to post the inquiry at our embedded support at http://embedded.communities.intel.com/ for them to better assist on this.

 

 

Regards,

 

Sharon T