Intel® Cyclone® 10 LP Core Fabric and General Purpose I/Os Handbook

ID 683777
Date 2/15/2023
Document Table of Contents

4.2.14. Spread-Spectrum Clocking

Intel® Cyclone® 10 LP devices can accept a spread-spectrum input with typical modulation frequencies. However, the device cannot automatically detect that the input is a spread-spectrum signal. Instead, the input signal looks like deterministic jitter at the input of the PLL. The Intel® Cyclone® 10 LP PLLs can track a spread-spectrum input clock as long as it is in the input jitter tolerance specifications and the modulation frequency of the input clock is below the PLL bandwidth, that is specified in the fitter report. Intel® Cyclone® 10 LP devices cannot generate spread-spectrum signals internally.