DP83848I: Recommend smaller and lower cost device

Hi Gerome,

Thanks a lot for reply! Customer chooses DP83825I to replace DP83848I. What should they be careful in design?

BR,

Victoria

Hi Gerome,

Thanks for guide! My customer finished schematic according to your suggestion and look for your kind review. Schematic is attached. 

In addition, how many LEDs could be driven by DP83825I via RJ45?

BR,

Victoria

Hi Victoria,

PFA schematic checklist. This is a self-use tool which has been able to expedite reviews. Please have customer fill this out and if there are further questions, product line team can assist.

One thing I noticed is that PHY is that there is no strapping present on the schematic. Thus I would treat this as default configurations; RMII Master configured with CRS_DV and regular Auto-Negotiation and Auto-MDIX. I see that PHY is being supplied with XTAL (is this 25MHz?) and its clock is being directly routed to RJ-45. I assume this is for LED functionality, but this is only available when in RMII slave.

Sincerely,

Gerome

8802.DP83825_Schematic_Design_Review_Checklist.xlsx

Hi Gerome,

Checklist is helpful. Do we have pcb file for DP83825I package? The file in TI.com seems not work.

BR,

Victoria

Hi Victoria,

Which file does not work?

Sincerely,

Gerome

Hi Gerome,

The AD file is integral pcb, does not have separate dp83825i package library file, customer need to draw it by himself. If we have library file, it will be better and convenient. Thanks!

BR,

Victoria 

Hi Gerome,

In .zip file folder, which one includes the dp83825i package library file ? The file does work, but it seems not include dp83826 package library file which customer needs to draw their pcb. 

BR,

Victoria

Hi Gerome,

Customer is drawing solder layer. and is confused about the 2 sizes: 1.9 and 1.71, they don't know which to choose to draw solder pads. Could you help to explain? Thanks.