Receiver jitter tolerance for 6G?

Alvin.Cox at Alvin.Cox at
Fri Aug 10 13:05:56 PDT 2007

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There are some issues regarding jitter that need resolution. For 6G, we 
set the transmitter TJ at .6 UI as the delivered allowed jitter after the 
reference channel and receiver equalization. Previous speeds allowed 0.55 
UI at IR/CR and then a receiver tolerance requirement with the 0.1 added 
sinusoidal jitter for receiver of 0.65 at IR/CR. This value allows the 
receiver to apply whatever its recovery capabilities are, including 
possible equalization schemes, to the signal to help to meet BER. Since we 
have moved to a point past the receiver equalization in the 6G 
specification, I am not convinced that the receiver tolerance methodology 
should be applied in the 6G specification. Comments?
Alvin Cox
Seagate Technology, LLC
Office 405-381-8067
Cell 405-206-4809

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