Title :
A blind ADC-based CDR with digital data interpolation and adaptive CTLE and DFE
Author :
Ting, Chih-Hung ; Jalali, Mohammad Sadegh ; Sheikholeslami, Ali ; Kibune, Masaya ; Tamura, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
Abstract :
This paper proposes replacing the analog phase interpolator in a phase-tracking ADC-based receiver with a digital data interpolator following the ADC. This allows for a blind ADC-based receiver that has a simpler adaptive DFE compared to previous implementations. Our measurements from a 65 nm CMOS testchip confirm 7 Gb/s operation for a 17 dB channel loss.
Keywords :
CMOS integrated circuits; adaptive equalisers; analogue-digital conversion; blind equalisers; clock and data recovery circuits; decision feedback equalisers; interpolation; radio receivers; CDR; CMOS; DFE; adaptive CTLE; analog phase interpolator; blind ADC; clock and data recovery circuits; continuous time linear equalizer; decision feedback equalizers; digital data interpolation; phase tracking ADC; Backplanes; CMOS integrated circuits; Decision feedback equalizers; Interpolation; Least squares approximations; Loss measurement; Receivers; Adaptation; blind ADC-based CDR; data interpolator; linear equalizer; zero-forcing DFE;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2014 IEEE Proceedings of the
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2014.6946102
