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A 5.4GHz 90-nm CMOS digitally controlled LC oscillator with 21% tuning range, 1.1MHz resolution, and 180dB FOM

Lu, Ping LU and Sjöland, Henrik LU (2008) Norchip Conference, 2008
Abstract
A 5.4 GHz digitally controlled oscillator (DCO) has been implemented in a 90-nm CMOS process. It has three different frequency control words, coarse, medium, and fine. The coarse control bank uses MIM capacitors and differential MOS switches. The other banks use MOS varactors. The phase noise was measured at the output of an on-chip divide by 2 circuit. It is -132 dBc/Hz at 3 MHz offset from the 2.7 GHz carrier. The power consumption of the oscillator is 7.8 mW from a 1.2 V supply, resulting in a figure of merit (FOM) of 182 dB. The worst case FOM is 180 dB over the 21% tuning range.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
DCO, VCO, Oscillator, ADPLL, RF, CMOS
pages
4 pages
conference name
Norchip Conference, 2008
external identifiers
  • scopus:62949234278
language
English
LU publication?
yes
id
88e867d8-f1a8-4568-a8b4-684acd535a9f (old id 1270299)
alternative location
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=4738316&contentType=Conference+Publications&queryText%3DA+5.4GHz+90-nm+CMOS+digitally+controlled+LC+oscillator+with+21%25+tuning
date added to LUP
2008-11-24 15:01:30
date last changed
2017-01-01 08:16:32
@misc{88e867d8-f1a8-4568-a8b4-684acd535a9f,
  abstract     = {A 5.4 GHz digitally controlled oscillator (DCO) has been implemented in a 90-nm CMOS process. It has three different frequency control words, coarse, medium, and fine. The coarse control bank uses MIM capacitors and differential MOS switches. The other banks use MOS varactors. The phase noise was measured at the output of an on-chip divide by 2 circuit. It is -132 dBc/Hz at 3 MHz offset from the 2.7 GHz carrier. The power consumption of the oscillator is 7.8 mW from a 1.2 V supply, resulting in a figure of merit (FOM) of 182 dB. The worst case FOM is 180 dB over the 21% tuning range.},
  author       = {Lu, Ping and Sjöland, Henrik},
  keyword      = {DCO,VCO,Oscillator,ADPLL,RF,CMOS},
  language     = {eng},
  pages        = {4},
  title        = {A 5.4GHz 90-nm CMOS digitally controlled LC oscillator with 21% tuning range, 1.1MHz resolution, and 180dB FOM},
  year         = {2008},
}