AN52133 - Frequency Margining using FleXO™ and Its Applications
Last Updated: 08/07/2012
Cypress FleXO devices provide users with the ability to change output frequency with a unique frequency margining feature built into their design. This capability can be used at all stages of system design for troubleshooting, design optimization, and testing. This application note serves as a guide to this feature. Included usage examples provide additional detail.
Most clock generators available to designers use a crystal oscillator to provide a fixed frequency clock output with little or no programmability. Cypress’ FleXO clock generators include a frequency margining capability that allows users to change output frequency.