Teledyne LeCroy VirtualProbe - Manual (Page 4)

VirtualProbe Software
Virtual Probe Overview
The Teledyne LeCroy Virtual Probesoftware option lets you view waveforms as they would appear in cir-
cuit locations other than the probing point, and in circuit configurations different from the configuration
actually used for the measurement. By using Virtual Probe, you can understand the characteristics of sig-
nals where a physical probe cannot be placed, such as inside of a package or at the end of an inter-
connect that doesn't physically exist. You can choose to remove effects caused by elements such as
fixtures that will not be present when the device under test is used its final configuration, or add the
effects of a device that is to be included but for which only an S-parameter model exists.
VirtualProbe can be used in conjunction with the SDAIII-CompleteLinQ family of serial data analysis tools,
or operated independently. It is compatible with SDAIII-CompleteLinQ multi-lane capabilities, integrating
seamlessly into the SDAIII-CompleteLinQ framework flow diagram. When the oscilloscope is also out-
fitted with the Noise and Crosstalk measurement package (offered with SDAIII-CrossLinQ or SDAIII-Com-
pleteLinQ), you can model the crosstalk across multiple lanes. Configuring and compiling the circuit
model is fast, and the software rapidly calculates the output waveforms.
Virtual Probe Process
The basic process for using Virtual Probe is:
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Create a model of the circuit to be analyzed using a simple user interface.
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For each block of the model, indicate whether or not the virtual probe output should include or
remove the effects of that block.
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For measurements taken with a differential probe, indicate the probe used to make the meas-
urement, so that the probe loading effects can be removed.
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Identify the position of the probe used to take the measurement.
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