A −251.4-dB FoM Calibration-Free Fractional-N Cascaded PLL With Wideband Oversampling Noise-and-Spur Cancellation https://sscs.ieee.org/wp-content/themes/movedo/images/empty/thumbnail.jpg 150 150 https://secure.gravatar.com/avatar/8fcdccb598784519a6037b6f80b02dee03caa773fc8d223c13bfce179d70f915?s=96&d=mm&r=g
Abstract:
This article presents a calibration-free fractional-N cascaded phase-locked loop (PLL) employing a sampling phase detector (SPD)-bypass-based phase-domain oversampling noise-and-spur cancellation (P-OSNSC) technique. By incorporating an oversampling cancellation path that eliminates the gain errors and noise cancellation bandwidth limitation introduced by the SPD, the proposed architecture suppresses noise from the …