A SET-Tolerant High-Frequency Multibiased Multiphase Voltage-Controlled Oscillator for Phase Interpolator-Based Clock and Data Recovery

A high-frequency multibiased multiphase voltage-controlled oscillator (MBM-VCO) for clock and data recovery is proposed. The operating frequency of the voltage-controlled oscillator (VCO) ranges from 2.1 to 5.5 GHz. The sensitivity of the VCO to bias is reduced through multibias technology and inter...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2022-07, Vol.69 (7), p.1725-1732
Main Authors: Hengzhou, Yuan, Hao, Sang, Bin, Liang, Jianjun, Chen, Yaqing, Chi, Weixia, Xu, Yang, Guo
Format: Article
Language:English
Subjects:
Bias
Clock and data recovery (CDR)
Clock recovery
Clocks
Data recovery
Delays
Ions
Laser beam hardening
Multiphase
Phase locked loops
Phase noise
Power demand
radiation hardening
Voltage
Voltage controlled oscillators
voltage-controlled oscillator (VCO)
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Summary:A high-frequency multibiased multiphase voltage-controlled oscillator (MBM-VCO) for clock and data recovery is proposed. The operating frequency of the voltage-controlled oscillator (VCO) ranges from 2.1 to 5.5 GHz. The sensitivity of the VCO to bias is reduced through multibias technology and interleaving bias, while the ability to single-event transient (SET) tolerance of the ring oscillator is improved through layout hardening. Laser experiments show that the threshold value of the proposed MBM-VCO is greatly improved. Ion experiments further show a SET tolerance under linear energy transfers (LETs) of 83.7 MeV \,\cdot cm 2 /mg.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2022.3172401