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AR# 25405

Spartan-3A/-3AN /-3A DSP, DCM - How can I calculate the jitter from the CLKFX output?

Description

The Spartan-3A/-3AN/-3A DSP data sheet does not provide the CLKFX output jitter. How is this calculated?

Solution


To calculate the CLKFX output jitter, you can use the Spartan-3A Jitter Calculator at:
http://www.xilinx.com/support/documentation/data_sheets/s3a_jitter_calc.zip
The jitter number given assumes that CLKIN is worst case with regards to jitter, etc.
These numbers should be used instead of the jitter provided by the Architecture Wizard.
AR# 25405
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article
Devices
  • Spartan-3A
  • Spartan-3A DSP
  • Spartan-3AN