AR# 70619

TX configurable driver spreadsheet and TX over-equalization

Description

The transmitter driver can be configured with three ports mainly:

  • TXDIFFCTRL, driving the main cursor
  • TXPOSTCURSOR, driving the post cursor
  • TXPRECURSOR, driving the pre cursor

In the User Guide a Block Diagram gives a simplified description of how these three cursors interact in driving the signal.

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Solution

The attached spreadsheet gives a numerical explanation, with an example, of the three cursors interaction.

The spreadsheet also warns about excessive equalization and risks of flipped amplitude.

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Attachments

Associated Attachments

Name File Size File Type
TX_SWING.xlsx 39 KB XLSX
AR# 70619
Date 03/02/2018
Status Active
Type General Article
Devices More Less