User`s guide

Clock Analysis Theory
The SIA-3000 is a hybrid instrument that combines the measurement capabilities of a sampling
oscilloscope with time measurement circuitry: Rise/Fall times, Voltage amplitude and Eye Masks from the
Oscilloscope; timing parameters, i.e., Period, Pulse widths, Skews and components of Jitter from the time
measurement circuitry. This tool combines a few different measurement tools in the
SIA-3000. By doing
this, a large number of useful results can be displayed quickly. The "Measure Options" button allows you to
toggle on or off certain measurements. The measurement settings provide the best configuration to a variety
of users. This ease of use means that there is less control over individual settings. But, there may be
instances where there is the need to have more control over a specific measurement. Some examples would
be changing the trigger delay on the oscilloscope, or measuring a histogram over two periods rather than
single period jitter. Another example would be to find very low frequency jitter below the (clock/1667) low
cutoff frequency of this tool.
In any of these cases, you can press "Current View Diagnostic Tool" from the view you are in to open that
specific tool, make the measurement and have control over a larger number of settings. If viewing the
Oscilloscope view, Pressing "Current View Diagnostic Tool" will open the Oscilloscope tool. You now have
access to many more configuration settings. If viewing the Histogram view, Pressing "Current View
Diagnostic Tool" will open the Histogram tool and allow different settings.
© WAVECREST Corporation 2005 Section 4 - GigaView
55