access icon openaccess Fault-tolerant multi-node coupling triple mode redundancy voltage controlled oscillator for reducing soft error in clock and data recovery

A voltage controlled oscillator (VCO) applied to phase-locked loop with multi-node coupling triple mode redundancy is proposed in this Letter. The proposed VCO consists of three independent operating VCOs. These VCOs are coupled through a metal oxide metal capacitor to synchronise the output of the three independent VCOs. The proposed VCO does not introduce loop delay, and the frequency and phase noise do not decline.

Inspec keywords: synchronisation; fault tolerance; phase noise; redundancy; voltage-controlled oscillators; clock and data recovery circuits; radiation hardening (electronics); phase locked loops

Other keywords: phase noise; clock and data recovery; metal oxide metal capacitor; soft error reduction; phase-locked loop; fault-tolerant multinode coupling triple mode redundancy voltage controlled oscillator; independent operating VCOs

Subjects: Oscillators; Modulators, demodulators, discriminators and mixers; Radiation effects (semiconductor technology); Reliability

http://iet.metastore.ingenta.com/content/journals/10.1049/el.2018.7700
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content/journals/10.1049/el.2018.7700
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