F-tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 12/15/2021

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7.4. F-Tile TX Equalizer Tool

A high-speed signal traveling through a backplane is subject to high-frequency losses, primarily skin effect and dielectric losses. These losses can severely degrade and attenuate the high-frequency content of the signal, making it difficult for the receiver to interpret the signal. The F-Tile FGT TX PMA offers pre-emphasis and linear equalization to address this problem and improve the high-speed signal quality.

You can use the F-Tile TX Equalizer Tool to estimate the pre-emphasis and output swing. The tool displays the FGT PMA transmitter output swing when you change transmitter’s:
  • Main cursor.
  • First post-cursor.
  • First post-cursor.
  • Second pre-cursor.
The Excel-based F-Tile TX Equalizer Tool, is available for download at F-Tile TX Equalizer Tool. A screenshot of the tool is shown in the following figure.
Figure 116. F-Tile TX Equalizer Tool