Multiple Evaluation Board Schematics of ADV7393 found. Need clarification in which one to follow.

Hi,

   I beleive, "ADV739x eval RvD .pdf " is the latest document So you can take 'ADV7392-3' schematic from REVD document.

   Since the another ADV7392 schematic is under 'ADV7392_3EBZ_a.pdf "is under 'Revision A'.

Thanks,

Poornima

Hi Poornima, 

Thanks for the clarification,

Also, is there any requirement for separate grounds? Here AGND, PGND, and DGND are connected to common ground. 

Hi,

  Please find the below comment,

Also, is there any requirement for separate grounds? Here AGND, PGND, and DGND are connected to common ground?

   AGND, PGND, and DGND are related to internal sections of the chip and normally we tie all the grounds together on a single plane. Please check out our reference layout.

   As per expert comment, We can get the best results with a solid ground plane, All our current boards have solid ground planes.

   The problem with split ground planes is the junction between the 2 planes would need to be right under the chip which is difficult to route and very error prone.  

   Please refer this thread (+) ADV7391 Power Supply & Grounding - Q&A - Video - EngineerZone (analog.com) Here expert given some suggestion about Split and common ground plane.

Thanks,

Poornima