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Title: A low-jitter and low-reference-spur 320 GHz signal source with an 80 GHz integer-N phase-locked loop using a quadrature XOR technique
Authors: Liang, Yuan
Boon, Chirn Chye
Qi, Gengzhen
Dziallas, Giannino
Kissinger, Dietmar
Ng, Herman Jalli
Mak, Pui-In
Wang, Yong
Keywords: Engineering::Electrical and electronic engineering::Integrated circuits
Issue Date: 2022
Source: Liang, Y., Boon, C. C., Qi, G., Dziallas, G., Kissinger, D., Ng, H. J., Mak, P. & Wang, Y. (2022). A low-jitter and low-reference-spur 320 GHz signal source with an 80 GHz integer-N phase-locked loop using a quadrature XOR technique. IEEE Transactions On Microwave Theory and Techniques.
Project: MOE2019-T2-1-114
Journal: IEEE Transactions on Microwave Theory and Techniques
Abstract: This article reports a 320-GHz low-jitter and low-reference-spur signal source consisting of an 80-GHz integer-N phase-locked loop (PLL) and a 320-GHz frequency quadrupler. The 80-GHz PLL features a novel dual-path quadrature exclusive-OR (QXOR) technique to cancel the spurs at the reference frequency and its harmonics, enabling low-spur and low-noise phase locking. The proposed phase detector (PD) also enables frequency detection and lock detection (LD), rendering the band-searching to be decoupled from the loop components. Implemented in a 0.13-μm SiGe BiCMOS technology, the proposed signal source shows a -73.1-dBc reference spur, -113.7-dB/Hz phase noise at 1-MHz offset at 40.96 GHz, and -90.3-dB/Hz phase noise at 1-MHz offset at 311.8 GHz. It achieves an integrated jitter of 66.9 fs <formula> <tex>$_{{rms}}$</tex> </formula> at 40.96 GHz and 122 fs <formula> <tex>$_{{rms}}$</tex> </formula> (both integrated from 10 kHz to 100 MHz) beyond 300 GHz, with a total division ratio of 512. The LD time is at the microsecond level. The maximum output power is -3.24 dBm, and the power consumption is 372 mW.
ISSN: 0018-9480
DOI: 10.1109/TMTT.2022.3156901
Rights: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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