A 161.9-fs RMS Jitter 2.7-GHz Injection-Locked PLL Featuring Synchronized Injection and Frequency Tracking in 28-nm CMOS

Zhaoshan Gao; Runchen Wang; Lingao Huang; Meng Ning; Ya Zhao; Li Geng; Chao Fan

doi:10.1109/LMWT.2026.3721202

A 161.9-fs RMS Jitter 2.7-GHz Injection-Locked PLL Featuring Synchronized Injection and Frequency Tracking in 28-nm CMOS

Zhaoshan Gao
, Runchen Wang
, Lingao Huang
, Meng Ning
, Ya Zhao
, Li Geng
, Chao Fan

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

Abstract

This letter presents a low-jitter ring voltage-controlled oscillator (RVCO) based injection-locked phase-locked loop (ILPLL). In particular, the proposed ILPLL features synchronized injection and frequency tracking to address the phase and slew-rate mismatch in conventional ILPLLs, which intrinsically facilitates the alignment of the free-running and injected edges without additional area-intensive background phase calibration. Fabricated in a 28-nm CMOS process, the ILPLL achieves an rms jitter of 161.9fs (integrated from 10kHz to 40MHz) and a reference spur of −60.2dBc at a 2.7GHz carrier frequency. The power consumption is 9.36mW from a 0.9-V supply corresponding to FoM_Jitter of −246.1dB.

Original language	English
Journal	IEEE Microwave and Wireless Technology Letters
DOIs	https://doi.org/10.1109/LMWT.2026.3721202
State	Accepted/In press - 2026
Externally published	Yes

Keywords

Injection-locked phase-locked loop (ILPLL)
low jitter
phase noise
phase-locked loop (PLL)
reference spur
ring-voltage-controlled oscillator (RVCO)
slew-rate mismatch

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10.1109/LMWT.2026.3721202

Cite this

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title = "A 161.9-fs RMS Jitter 2.7-GHz Injection-Locked PLL Featuring Synchronized Injection and Frequency Tracking in 28-nm CMOS",

abstract = "This letter presents a low-jitter ring voltage-controlled oscillator (RVCO) based injection-locked phase-locked loop (ILPLL). In particular, the proposed ILPLL features synchronized injection and frequency tracking to address the phase and slew-rate mismatch in conventional ILPLLs, which intrinsically facilitates the alignment of the free-running and injected edges without additional area-intensive background phase calibration. Fabricated in a 28-nm CMOS process, the ILPLL achieves an rms jitter of 161.9fs (integrated from 10kHz to 40MHz) and a reference spur of −60.2dBc at a 2.7GHz carrier frequency. The power consumption is 9.36mW from a 0.9-V supply corresponding to FoMJitter of −246.1dB.",

keywords = "Injection-locked phase-locked loop (ILPLL), low jitter, phase noise, phase-locked loop (PLL), reference spur, ring-voltage-controlled oscillator (RVCO), slew-rate mismatch",

author = "Zhaoshan Gao and Runchen Wang and Lingao Huang and Meng Ning and Ya Zhao and Li Geng and Chao Fan",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.",

year = "2026",

doi = "10.1109/LMWT.2026.3721202",

language = "英语",

journal = "IEEE Microwave and Wireless Technology Letters",

issn = "2771-957X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - A 161.9-fs RMS Jitter 2.7-GHz Injection-Locked PLL Featuring Synchronized Injection and Frequency Tracking in 28-nm CMOS

AU - Gao, Zhaoshan

AU - Wang, Runchen

AU - Huang, Lingao

AU - Ning, Meng

AU - Zhao, Ya

AU - Geng, Li

AU - Fan, Chao

PY - 2026

Y1 - 2026

N2 - This letter presents a low-jitter ring voltage-controlled oscillator (RVCO) based injection-locked phase-locked loop (ILPLL). In particular, the proposed ILPLL features synchronized injection and frequency tracking to address the phase and slew-rate mismatch in conventional ILPLLs, which intrinsically facilitates the alignment of the free-running and injected edges without additional area-intensive background phase calibration. Fabricated in a 28-nm CMOS process, the ILPLL achieves an rms jitter of 161.9fs (integrated from 10kHz to 40MHz) and a reference spur of −60.2dBc at a 2.7GHz carrier frequency. The power consumption is 9.36mW from a 0.9-V supply corresponding to FoMJitter of −246.1dB.

AB - This letter presents a low-jitter ring voltage-controlled oscillator (RVCO) based injection-locked phase-locked loop (ILPLL). In particular, the proposed ILPLL features synchronized injection and frequency tracking to address the phase and slew-rate mismatch in conventional ILPLLs, which intrinsically facilitates the alignment of the free-running and injected edges without additional area-intensive background phase calibration. Fabricated in a 28-nm CMOS process, the ILPLL achieves an rms jitter of 161.9fs (integrated from 10kHz to 40MHz) and a reference spur of −60.2dBc at a 2.7GHz carrier frequency. The power consumption is 9.36mW from a 0.9-V supply corresponding to FoMJitter of −246.1dB.

KW - Injection-locked phase-locked loop (ILPLL)

KW - low jitter

KW - phase noise

KW - phase-locked loop (PLL)

KW - reference spur

KW - ring-voltage-controlled oscillator (RVCO)

KW - slew-rate mismatch

UR - https://www.scopus.com/pages/publications/105048518239

U2 - 10.1109/LMWT.2026.3721202

DO - 10.1109/LMWT.2026.3721202

M3 - 文章

AN - SCOPUS:105048518239

SN - 2771-957X

JO - IEEE Microwave and Wireless Technology Letters

JF - IEEE Microwave and Wireless Technology Letters

ER -

A 161.9-fs RMS Jitter 2.7-GHz Injection-Locked PLL Featuring Synchronized Injection and Frequency Tracking in 28-nm CMOS

Abstract

Keywords

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