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PCB board size?

Amer Abufadel5389
Intellectual 460 points

Greetings,

  I was wondering what is the smallest pcb that can accommodate the DM355.  Looking that the EVM board, the area occupied by the power switchers and the accompanying passive elements is substantial.  If board area is tight, in my case about 2400mm2, which is roughly the area that covers the power switchers and the supporting circuitry.  How can one fit a DM355 along with the flash, DDR and power supplies into a small pcb? Then you have the rest of the stuff, audio, video ...

I know that DM430 and DDR and flash better be on the same board which probably be the same size mentioned above. Can one say stack a separate board with the power supplies and battery and use board to board connectors to power the rest?  Or is it possible to populate both sides of the pcb and reduce the area for the power supplies?

 

Any thoughts appreciated.

 

Thank you

--

A

  • 0
    TI__Mastermind 41665 points

    You should be able to use both sides of the PCB to compress the design to a much smaller surface area than is on the EVM, as a general note the EVM is not considered a 'reference design' because of this sort of thing, it is built with flexibility and time to production as the primary factors as opposed to efficiency.

    In the case of the DM355 you are in luck as there has recently been a new DM355 based Leopard Board announced that is a much smaller design than the original EVM, see photos here and public discussion here.

    www.leopardboard.org