dc.contributor.author | Tao, Jianian | |
dc.date.accessioned | 2017-04-27 16:37:22 (GMT) | |
dc.date.available | 2017-04-27 16:37:22 (GMT) | |
dc.date.issued | 2017-04-27 | |
dc.date.submitted | 2017-04-26 | |
dc.identifier.uri | http://hdl.handle.net/10012/11775 | |
dc.description.abstract | This thesis investigates the phase noise of two different 2-stage cross-coupled pair unsaturated ring oscillators with no tail current source. One oscillator consists of top cross-coupled pair delay cells, and the other consists of top cross-coupled pair and bottom cross-coupled pair delay cells. Under a low supply voltage restriction, a phase noise model is developed and applied to both ring oscillators. Both top cross-coupled pair and top and bottom cross-coupled pair oscillators are fabricated with 0.13 um CMOS technology. Phase noise measurements of -92 dBc/Hz and -89 dBc/Hz ,respectively, at 1 MHz offset is
obtained from the chip, which agree with theory and simulations. Top cross-coupled ring oscillator, with phase noise of -92 dBc/Hz at 1 MHz offset, is implemented in a second order sigma-delta time to digital converter. System level and transistor level functional simulation and timing jitter simulation are obtained. | en |
dc.language.iso | en | en |
dc.publisher | University of Waterloo | en |
dc.subject | Oscillator | en |
dc.subject | Phase noise | en |
dc.subject | time to digital converter | en |
dc.subject | sigma delta modulator | en |
dc.title | Design of Low Voltage Unsaturated Ring Oscillator for a Sigma Delta Time to Digital Converter | en |
dc.type | Master Thesis | en |
dc.pending | false | |
uws-etd.degree.department | Electrical and Computer Engineering | en |
uws-etd.degree.discipline | Electrical and Computer Engineering | en |
uws-etd.degree.grantor | University of Waterloo | en |
uws-etd.degree | Master of Applied Science | en |
uws.contributor.advisor | Leung, Bosco | |
uws.contributor.affiliation1 | Faculty of Engineering | en |
uws.published.city | Waterloo | en |
uws.published.country | Canada | en |
uws.published.province | Ontario | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Unreviewed | en |
uws.scholarLevel | Graduate | en |