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  4. 20-300 MHz Frequency Generator with-70 dBc Reference Spur for Low Jitter Serial Applications
 
conference paper

20-300 MHz Frequency Generator with-70 dBc Reference Spur for Low Jitter Serial Applications

Yilmaz, Gurkan
•
Dehollain, Catherine  
2016
2016 2Nd Ieee Nordic Circuits And Systems Conference (Norcas)
2nd IEEE Nordic Circuits and Systems Conference (NORCAS)

This paper presents a frequency synthesizer based on a phase locked loop (PLL) targeting low jitter applications. The frequency generator covers a range wider than a decade, more explicitly from 20 to 300 MHz. Thanks to a 4-stage ring oscillator, it can provide quadrature signals and exhibit a -117 dBc/Hz phase noise at an offset of 1 MHz from the carrier. Settling time simulations on MATLAB and Cadence Spectre match with measurement results, which yield maximum 1.3 mu s (or 26 reference cycles) for N to N+1 switching, while N denotes the integer division ratio. PLL core draws a current less than 5 mA when it is supplied from a 1.8 V dc supply. PLL is driven by a 20 MHz clock source having 0.67 ps rms jitter. At 200 MHz, the circuit provides a differential output with 2.05 ps rms jitter (equivalent to 0.41 mUI) within an integration window from 10 Hz to 40 MHz and creates a reference spur lower than -70 dBc.

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Type
conference paper
DOI
10.1109/NORCHIP.2016.7792883
Web of Science ID

WOS:000391620400010

Author(s)
Yilmaz, Gurkan
Dehollain, Catherine  
Date Issued

2016

Publisher

Ieee

Publisher place

New York

Published in
2016 2Nd Ieee Nordic Circuits And Systems Conference (Norcas)
ISBN of the book

978-1-5090-1095-0

Total of pages

4

Subjects

phase-locked loop

•

clock generation

•

reference spur

•

phase noise

•

jitter

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-CD  
Event nameEvent placeEvent date
2nd IEEE Nordic Circuits and Systems Conference (NORCAS)

Copenhagen, DENMARK

NOV 01-02, 2016

Available on Infoscience
February 17, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/134383
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