TLK3114: IEEE-1588 support?

Hi Paul,

How many clocks are you looking to synchronize and at what speed? What is your intended end application? Clock distribution across a backplane?

Regards,

Mike

Hi Mike,

Thanks for the response and sorry for the delay getting back to you.   For our current system configuration that we're considering, we are talking of a MAC with or without a PHY that runs signals off the CPU board to a backplane.  Elsewhere on that backplane is a board with an Ethernet switch that will collect the connections from one to four CPU boards and provide two external 10GbE connections.  At this time we are using copper for 1000BaseT.  In the future, I would assume that it would be an idea to be able to support copper, short fiber, and long fiber connections.  No hard decisions yet on all the connectivity options yet.  If we assume that each connection will have a clock that needs synchronization we are looking at a minimum of 6, or 12 if each direction gets its own clock.  That would be on the Ethernet switch card.  The CPU would have just one transmit and one receive link which would be 1 or 2 clocks to sync.  As far as what speed, I am not sure.  I do not know that much about this version of Ethernet at this point.  Thanks again!

Paul