Hi,
in the Datasheet of AM1808 it is written that there have to be at least 2 ground planes and one 1.8V power plane. Also it's written that other signals in the DDR region have to be seperated by a ground plane.
Would it be okay to have 2 layers of striplines with a 1.8V power plane and a grond plane a reference each (-> two power and two ground planes in total)?
Could a 1.8V power plane also be used to seperate other signal from the DDR signals?
Should there be cuts i the ground / power planes to seperate the DDR plane region from the other ciruit?
Thanks,
Thomas.