Spur Canceling Technique by Folded xor Gate Phase Detector and Its Application to a Millimeter-Wave SiGe BiCMOS PLL

Spur Canceling Technique by Folded xor Gate Phase Detector and Its Application to a Millimeter-Wave SiGe BiCMOS PLL

clockAugust 2023 Issue

authorY. Liang, Q. Chen, Y. Wang, D. Kissinger and H. J. Ng

Spur Canceling Technique by Folded xor Gate Phase Detector and Its Application to a Millimeter-Wave SiGe BiCMOS PLL

Abstract
https://ieeexplore.ieee.org/document/10048556
Device
130-nm SiGe BiCMOS
Spectrum
80 GHz
Novelty
1) The reference spur generated by each XOR gate is cancelled by a complimentary gate’s reference spur without degrading VCO gain or PLL bandwidth; 2) Push-pull current-reuse 4-gate topology; 3) High Gain of the FXOR PD compensates for its noise contribution.
Application
Fully integrated mmW / terahertz wireless communication systems
Performance
1) -73 dBm reference spur; 2) 79.5 fsrms integrated jitter (10 kHz-100 MHz), -102 dBc/Hz2 Lnorm; 3) -241 dB Figure of Merit (FoM), -236 dB FoMJRP, -265 dB FoMJit.n.