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Keysight Technologies
MIL-STD 1553 Eye-diagram Mask Testing




Application Note
Introduction

Eye-diagram mask testing is used in a broad range of today's
serial bus applications. An eye-diagram is basically an overlay of
all bits captured by the scope to show when bits are valid and not
valid. This provides a composite picture of the overall quality of a
system's physical layer characteristics, which includes amplitude
variations possibly due to transmission line affects, reflections,
system noise, over-shoot, ringing, signal edge timing, and jitter.

Eye-diagram mask testing can be performed on differential MIL-
STD 1553 signals using the Keysight Technologies, Inc. 3000, 4000
or 6000 X-Series oscilloscope licensed with the DSOX3AERO/
DSOX4AERO/DSOX6AERO triggering and decode option (MIL-STD
1553 & ARINC 429), along with the DSOX3MASK/DSOX4MASK/
DSOX6MASK mask test option. Various MIL-STD 1553 mask files
can be downloaded from Keysight's website at no charge. Save
the appropriate MIL-STD 1553 mask files to your personal USB
memory stick and then insert the memory stick into the scope's
front-panel USB port. The following MIL-STD 1553 mask files are
available: