LMH0318_15 Datasheet, PDF (47/57 Pages) Texas Instruments – LMH0318 3 Gbps HD/SD SDI Reclocker with Integrated Cable Driver

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LMH0318
SNLS508 – SEPTEMBER 2015
9.2.3 Application Curves
Two common ways to visualize this data are shown in Figure 20 and Figure 21. These diagrams depict examples
of eye monitor plot implemented by software. The first plot is an example of using the EOM data to plot a basic
eye using ASCII characters, which can be useful for simple diagnostics software. The second plot shows the first
derivative of the EOM data, revealing the density of hits and the actual waveforms and crossing that comprise
the eye. Measurements were done at default operating conditions.
Figure 20. Internal Input Eye Monitor Plot at 2.97 Gbps,
PRBS10
Figure 21. Internal Eye Monitor Hit Density Plot at 2.97
Gbps, PRBS10
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