Advanced
Embedded Debug
with Jitter and
Real-Time Eye
Analysis
Figure 1: The MSO8000 High Performance Oscilloscope
RIGOL – Innovation or nothing
Introduction
Debugging embedded communications is one of
the most common tasks for electronic design
engineers. Efficient Analysis of serial
communications requires more than simple
triggering and decoding but historically there
has been a significant cost difference between
the oscilloscopes with mixed signal, serial
triggering, and serial decode capabilities and the
high performance instruments with advanced
analysis. Engineers need the ability to test long
term signal quality characteristics including
jitter and eye patterns without investing in high
performance, high cost solutions.
The MSO8000 (Figure 1) provides the most
complete analysis capabilities, deepest memory,
and highest sample rate in its class. Built for
embedded design and debug, the MSO8000 is
designed to enable engineers to speed
verification and debug of serial communications
on a budget. Let's look at how class leading
sampling, memory, and analysis can be used
debug complex signal quickly and easily with the
help of Jitter and Eye Analysis.
Characterizing Jitter
Clock precision is critical to high
performance digital data transmission. Subtle
changes in clock frequency affect error rates and
data throughput, but these timing errors can't be
visualized easily in a traditional oscilloscope
view. Jitter analysis can be done on these types
of signals. Utilizing the high sample rate and the
deep memory, the oscilloscope compares the
changes in time between thousands of clock
transitions. This makes it possible to visualize
timing fluctuations below 100 picoseconds while
also tracking changes in clock timing over long
time periods.
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