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13
Real-time Eye Diagram and Jitter Analysis
(Option)
This series oscilloscope provides the real-time eye diagram and measurement with
the clock recovery function. The flexible and convenient jitter measurement and
analysis enable the users to instinctively understand the strong and weak Inter-
Symbol Interference in the system, so as to accurately and quickly make deterministic
jitter measurement for the high-speed serial signal.
If you have purchased and activated the MSO8000-JITTER option, the oscilloscope
also supports real-time eye diagram and jitter analysis functions.
13.1
Real-time Eye Analysis
An eye diagram is a view of a signal. A real- time eye accomplishes this by acquiring
data, performing clock recovery, then superimposing (folding) successive unit
intervals within a single plot. This is a statistical view in the form of a color grade. The
eye analysis function is usually used to observe the waveforms of the Receive signal
to analyze the impact of inter-symbol interference (ISI) and noise on the system
performance.
NOTE
The eye diagram can only be obtained when the horizontal time base is less than or equal to 1
µs/div.
You can go to the "Eye" setting menu through the following three ways:
•
On the front panel, press
•
You can also enable the touch screen and then tap the function navigation icon
at the lower-left corner of the screen to open the function navigation. Then,
tap the "Eye" icon to open the "Eye" setting menu.
•
Enable the touch screen and tap the auto measurement label "MEASURE" at the
top of the screen to enter the measurement setting menu. In the measurement
category area, rotate the multifunction knob
then press down the knob to select it. You can also tap the "Analyze" tab to
select it. In the measurement parameter area, rotate the multifunction knob
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
Real-time Eye Diagram and Jitter Analysis
> Analyze > Eye to enter the eye setting menu.
to select the "Analyze" tab and
(Option)
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