SVDD and Core VDD in LS1046A

[Urmila_123]

Hi all,

It is known that SerDes Core supply SVDD can be taken either from a separate 0.9V/1.0V source or from Core VDD. So, Please let me know which is better and how?

Thanks in Advance

[ufedor]

SVDD needs to be sourced from a separate regulator in LS1088A, so a separate regulator is required for common board to source SVDD - refer to the AN5226 - Common Board Design for LS1046A, LS1043A and LS1088A Processors.

[Urmila_123]

OK! what about LS1046A? Will it be ok to give SVDD from a separate regulator?

[ufedor]

> Will it be ok to give SVDD from a separate regulator?

Yes.