DocumentCode
3662702
Title
A precise 360°-range phase detector for fdNIRS application using a pair of XNORs
Author
Siavash S. Yazdi;Albert E. Cerussi;Michael M. Green
Author_Institution
Department of EECS, University of California, Irvine, 92697-2625, USA
fYear
2015
Firstpage
1
Lastpage
4
Abstract
A novel circuit for precise phase detection between two signals with the same frequency is presented. It is shown how the non-idealities in conventional phase detectors give rise to nonlinearities in the average voltage vs. phase characteristic. The proposed circuit makes use of a pair of XNOR-type phase detectors, to which signal and quadrature reference clocks are applied. A decision circuit then selects which of the two XNORs is used for the output, which guarantees that the circuit will be well within its linear region.
Keywords
"Clocks","Biomedical measurement","Radio frequency","Oscillators","Digital signal processing","Transistors","CMOS integrated circuits"
Publisher
ieee
Conference_Titel
Circuits and Systems (MWSCAS), 2015 IEEE 58th International Midwest Symposium on
Type
conf
DOI
10.1109/MWSCAS.2015.7282161
Filename
7282161
Link To Document