The Datacom module for Virtual Instruments™ Signal Integrity (VISI) Software package includes all the characterization, debug and analysis tools you need to separate total jitter into its random and deterministic components, quantify the frequency and amplitude of periodic jitter, and test systems and devices to meet compliance standards. Specific applications include:

• Fibre Channel
  

• XAUI

• InfiniBand

• DVI

• LVDS

• Gigabit Ethernet

• Serial ATA

• 3GIO

• RapidIO

• HyperTransport
  

Quantify RJ and DJ

The Datacom module can analyze systems that have a data signal and bit clock, so you can take accurate clock-to-data jitter measurements. The software automatically displays separate histograms for rising and falling data edges so you can determine which edge polarity contributes most to the jitter.

Diagnose the root cause of jitter

The Datacom module also has debug and characterization capabilities for a data signals with repeating patterns to quantify DCD and ISI along with periodic and random jitter components using WAVECREST patented algorithms. The magnitude of DCD and ISI provides essential information about bandwidth limitations. For example, you can see the DCD and ISI contribution for each edge in a pattern, which enables you to determine the contribution of data dependent jitter at the single-bit level.

Determining the magnitude and frequency of the PJ component (or components), for example, allows you to diagnose and debug potential EMI or crosstalk problems quickly and efficiently, without additional test equipment.

View error probability vs. eye closure

The Datacom module employs the patented WAVECREST TailFit™ algorithm to measure RJ on the data stream quickly and easily. This software also has the ability to determine the effect of RJ and DJ in terms of eye closure using the bathtub plot.

Perform compliance measurements in seconds

The Datacom module takes advantage of patented algorithms and the fast acquisition rates of the SIA-3000 to enable jitter compliance measurements to be completed in seconds for BER as low as 10^-16.