A 1.68-23.2-Gb/s Reference-Less Half-Rate Receiver With an ISI-Tolerant Unlimited Range Frequency Detector

Yu Ping Huang, Yi Wei Chang, Wei Zen Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This letter presents a reference-less half-rate receiver with an unlimited range frequency detector (URFD) for 13.8× continuous rate operation. To tolerate channel loss induced intersymbol interference (ISI), the receiver is integrated with a continuous-time linear equalizer (CTLE) and a 2-tap decision feedback equalizer (DFE) on the same chip. Incorporating with the novel pulse width-based URFD, the date rate of the receiver is limited by the frequency tuning range of the voltage-controlled oscillator (VCO). The energy efficiencies of the whole receiver and clock and data recovery (CDR) are about 2.39 and 0.97 pJ/bit, respectively. Implemented in a TSMC 28-nm CMOS process, the active area is 0.056 mm2.

Original languageEnglish
Pages (from-to)186-189
Number of pages4
JournalIEEE Solid-State Circuits Letters
Volume5
DOIs
StatePublished - 2022

Keywords

  • Clock and data recovery (CDR)
  • intersymbol interference (ISI)
  • phase detector (PD)
  • receiver
  • unlimited range frequency detector (URFD)

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