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

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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