Wednesday, October 14, 2009

Synchronized Crystal Oscillator (SXO) Application Note

• Jitter- Demo shows that multiple SXO's in sync together has better jitter performance than one individual SXO. This can be accomplished by starting with a jitter measurement with just one SXO running, then turning on two or more other SXOs making sure that at least one odd and one even SXO is on.

• Synchronization- Demo shows SXO's in an ensemble working in sync both frequency
and phase wise. Using one SXO as a reference for the others, the frequency and phase can be compared between SXO units that are powered up.

• Scalability- Allows for experimentation of adding or dropping off SXO's without
losing synchronization. The switches provided can be used to add or eliminate units from the overall operating group.

Redundancy- Demo allows for simulating clock failure via dropping off multiple SXO's.The switches provided can be used to add or eliminate units from the overall operating group.

• Hot Swap- Robustness experiments can be performed. Units can be physically
removed from their sockets and replaced to simulate the hot swap feature operation.