N5461B Datasheet, PDF (4/10 Pages) Keysight Technologies – Serial Data Equalization Software

04 | Keysight | N5461A Serial Data Equalization Software for Infiniium Series Oscilloscopes - Data Sheet
Easy Equalization Setup
The serial data equalization software extends the ease-of-use advantages of Keysight’s
Infiniium oscilloscopes to complete analysis of the receiver. The equalization wizard
walks you quickly through the steps required to setup and perform equalization. Intuitive
displays and clear labeling of information make it easy to perform complex equalization
emulation. The SDE wizard walks you through seven different equalization scenarios.
Equalization wizard options
1. FFE or CTLE are emulated, but the real time eye is not displayed. You will see only
the waveform. This option lets you use the equalized waveform to perform further
analysis on it such as jitter decompensation.
2. No equalization applied. Option 2 is to see the eye with no equalization applied.
The option works great for comparing the impact of different equalization
techniques.
3. FFE or CTLE are applied only to recover the clock, and the referenced eye is
unequalized. As real time eyes get closer to being fully closed, it can be difficult
for the software to recover a clock because it can be difficult to distinguish
between a 1 and 0 and provide the correct data rate. This option makes it possible
to easily recover the clock, even on closed eyes.
4. FFE or CTLE emulation.
5. Standard DFE emulation. One caveat for this option is that if your real time eye is
closed, the DFE will not work correctly. You will need to use the next option to use
FFE or CTLE to open the eye a little bit and then use DFE.
6. Standard DFE emulation for a closed eye. Note that FFE or CTLE is used to recover
the clock, but is not displayed in the real time eye.
7. FFE is applied and then DFE is applied to the real time eye. Both are displayed in
the resulting real time eye.
Figure 2. Equalization options from the wizard.