Abstract | ||
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In digital bang-bang phase-locked loops (BBPLLs), both the hard nonlinearity of the phase detector and the frequency granularity of the digitally controlled oscillator (DCO) can give rise to undesired tones or peaking in the output spectrum. This work derives the maximum ratio between DCO resolution and jitter, which avoids limit cycles, in the case of dominant DCO noise over reference noise. Moreover, the output jitter is expressed in closed form as a function of the loop parameters and latency, revealing the existence of a minimum and suggesting an optimum design criterion. Finally, an estimation of the BBPLL output spectrum taking into account the quantization noise is provided. |
Year | DOI | Venue |
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2009 | 10.1109/TCSII.2009.2032470 | IEEE Trans. on Circuits and Systems |
Keywords | Field | DocType |
frequency granularity,dominant dco noise,output spectrum,noise analysis,output jitter,dco resolution,digital bang-bang phase-locked loop,bbpll output spectrum,quantization noise,bang-bang digital plls,reference noise,closed form,phase detection,digital control,digitally controlled oscillator,phase detector,bang bang control,signal to noise ratio,quantization,phase locked loop,phase lock loop,phase locked loops,oscillators,limit cycle,jitter,spectrum | Digitally controlled oscillator,Phase-locked loop,Reference noise,Control theory,Signal-to-noise ratio,Phase noise,Electronic engineering,Jitter,Phase detector,Phase frequency detector,Physics | Journal |
Volume | Issue | ISSN |
56 | 11 | 1549-7747 |
Citations | PageRank | References |
37 | 2.24 | 8 |
Authors | ||
6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Marco Zanuso | 1 | 152 | 14.89 |
Davide Tasca | 2 | 56 | 4.48 |
Salvatore Levantino | 3 | 351 | 43.23 |
Andrea Donadel | 4 | 37 | 2.24 |
Carlo Samori | 5 | 349 | 39.76 |
Andrea L. Lacaita | 6 | 320 | 42.41 |