AN ADAPTIVE PHASE QUANTIZATION NOISE CANCELLATION ARCHITECTURE FOR ∆Σ FRACTIONAL-N FREQUENCY SYNTHESIZERS
Stiff, Jonathon Christopher. (2015). AN ADAPTIVE PHASE QUANTIZATION NOISE CANCELLATION ARCHITECTURE FOR ∆Σ FRACTIONAL-N FREQUENCY SYNTHESIZERS. Theses and Dissertations Collection, University of Idaho Library Digital Collections. https://www.lib.uidaho.edu/digital/etd/items/stiff_idaho_0089e_10232.html
- Title:
- AN ADAPTIVE PHASE QUANTIZATION NOISE CANCELLATION ARCHITECTURE FOR ∆Σ FRACTIONAL-N FREQUENCY SYNTHESIZERS
- Author:
- Stiff, Jonathon Christopher
- Date:
- 2015
- Embargo Remove Date:
- 2016-05-12
- Keywords:
- adaptive filter fractional-N PLL phase quantization noise
- Program:
- Electrical and Computer Engineering
- Subject Category:
- Electrical engineering; Engineering
- Abstract:
-
A fractional-N PLL phase quantization cancellation architecture using adaptive digital delay word scaling is presented and demonstrated. A digital sign-error adaptive filter utilizing the 1-bit quantized PLL phase error and the feedback divider delta-sigma modulator accumulated error generates the optimal control word scaling for a phase cancelling digital delay. A comprehensive analytic phase noise model is derived and compared to time-domain simulation and measurement. The proposed fractional-N synthesizer, with a 2.4 GHz center frequency VCO is fabricated on a PCB with commercially available integrated circuits as a proof of concept. The synthesizer output frequency range is 144-156 MHz with 2 ppm resolution for a 20 MHz crystal oscillator reference. The adaptive phase cancellation is measured to reduce phase noise by as much as 25 dB.
- Description:
- doctoral, Ph.D., Electrical and Computer Engineering -- University of Idaho - College of Graduate Studies, 2015
- Major Professor:
- Hess, Herbert
- Committee:
- Assefi, Touraj; Donohoe, Gregory; Hemati, Saied; Wolbrecht, Eric
- Defense Date:
- 2015
- Identifier:
- Stiff_idaho_0089E_10232
- Type:
- Text
- Format Original:
- Format:
- application/pdf
- Rights:
- In Copyright - Educational Use Permitted. For more information, please contact University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu.
- Standardized Rights:
- http://rightsstatements.org/vocab/InC-EDU/1.0/