Description
The amount of jitter can be the result of many factors in the system. The data rate, run-length, VOD,
Pre-emphasis, Equalizer settings are a few of the factors to consider. The same value would not be
valid for all conditions. Not every possible variation could be characterized. The datasheet
contains a practical selection of protocol jitter specs across frequency for the Stratix GX devices.
The data sheet was updated based on a supplemental Stratix GX characterization report where more
jitter analysis was completed across silicon process, voltage, and temperature with 16 channels and
with 75% of the array filled with counters running. Eight protocol conditions were tested with the
best VOD, Pre-emphasis, Equalization for the set up. The datasheet has these eight conditions
specified including the best VOD, Pre-emphasis, Equalization for the set up. Using a different set up
condition can get different results.
Environment
BUILT IN - ARTICLE INTRO SECOND COMPONENT