Abstract
A 14-bit digitally controlled ring oscillator (DCO) with operating frequency up to 1 GHz in 0.18 m CMOS technology is designed. The design used digital control to obtain higher output voltage swing and to get lower flicker noise compared to the analog counterpart. To make the oscillator oscillate and to get stable quadrature output in the even number of stages, feed-forward technique is used. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 4 MHz frequency offset is 137.81 dBc/Hz. Figure of Merit (FoM) calculated as big as 162.25 dBc/Hz, an improvement of about 6 dB from the recently published result.
| Original language | English |
|---|---|
| Title of host publication | Asia-Pacific Microwave Conference Proceedings, APMC 2011 |
| Pages | 255-258 |
| Number of pages | 4 |
| Publication status | Published - Dec 1 2011 |
| Event | Asia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia Duration: Dec 5 2011 → Dec 8 2011 |
Publication series
| Name | Asia-Pacific Microwave Conference Proceedings, APMC |
|---|
Other
| Other | Asia-Pacific Microwave Conference, APMC 2011 |
|---|---|
| Country | Australia |
| City | Melbourne, VIC |
| Period | 12/5/11 → 12/8/11 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Cite this
Development of low phase noise quadrature output digitally controlled CMOS ring oscillator. / Nugroho, P.; Pokharel, Ramesh; Anand, A.; Tomar, A.; Kanaya, Haruichi; Yoshida, K.
Asia-Pacific Microwave Conference Proceedings, APMC 2011. 2011. p. 255-258 6173734 (Asia-Pacific Microwave Conference Proceedings, APMC).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Development of low phase noise quadrature output digitally controlled CMOS ring oscillator
AU - Nugroho, P.
AU - Pokharel, Ramesh
AU - Anand, A.
AU - Tomar, A.
AU - Kanaya, Haruichi
AU - Yoshida, K.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - A 14-bit digitally controlled ring oscillator (DCO) with operating frequency up to 1 GHz in 0.18 m CMOS technology is designed. The design used digital control to obtain higher output voltage swing and to get lower flicker noise compared to the analog counterpart. To make the oscillator oscillate and to get stable quadrature output in the even number of stages, feed-forward technique is used. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 4 MHz frequency offset is 137.81 dBc/Hz. Figure of Merit (FoM) calculated as big as 162.25 dBc/Hz, an improvement of about 6 dB from the recently published result.
AB - A 14-bit digitally controlled ring oscillator (DCO) with operating frequency up to 1 GHz in 0.18 m CMOS technology is designed. The design used digital control to obtain higher output voltage swing and to get lower flicker noise compared to the analog counterpart. To make the oscillator oscillate and to get stable quadrature output in the even number of stages, feed-forward technique is used. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 4 MHz frequency offset is 137.81 dBc/Hz. Figure of Merit (FoM) calculated as big as 162.25 dBc/Hz, an improvement of about 6 dB from the recently published result.
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UR - http://www.scopus.com/inward/citedby.url?scp=84860499070&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84860499070
SN - 9780858259744
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 255
EP - 258
BT - Asia-Pacific Microwave Conference Proceedings, APMC 2011
ER -