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Enhancement Techniques for Digital Phase-Locked Loops.
Enhancement Techniques for Digital Phase-Locked Loops.

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자료유형  
 학위논문
Control Number  
0017162451
International Standard Book Number  
9798383258958
Dewey Decimal Classification Number  
621.3
Main Entry-Personal Name  
Eissa, Amr Ibrahim Farag.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of California, San Diego., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
155 p.
General Note  
Source: Dissertations Abstracts International, Volume: 86-01, Section: B.
General Note  
Advisor: Galton, Ian.
Dissertation Note  
Thesis (Ph.D.)--University of California, San Diego, 2024.
Summary, Etc.  
요약The performance of phase-locked loops (PLLs) is critical to advancing the data rates in wired and wireless communication systems. Most PLLs incorporate either analog filters and voltage-controlled oscillators (VCOs) or digital filters and digitally-controlled oscillators (DCOs). The former are called analog PLLs and the latter are called digital PLLs. To date, analog PLLs have the best phase error performance, but digital PLLs occupy smaller active area, lend themselves better to digital calibration and signal processing techniques, and are more compatible with highly-scaled CMOS integrated circuit (IC) technology. Thus, improving the performance of digital PLLs has been the subject of intensive research for many years.The first chapter of this dissertation presents an incremental frequency control (IFC) scheme for DCOs comprised of an arbitrarily large bank of unit-weighted frequency control elements (FCEs). The scheme requires only a pair of differential 1-bit control signals, is inherently monotonic, and avoids transient frequency glitches. Measurement results are presented to demonstrate the functionality of the proposed frequency control scheme and its negligible impact on a PLL's locking time and phase noise.The second chapter of this dissertation presents a reference frequency-doubling (RFD) technique that is immune to crystal oscillator duty-cycle error and is not subject to the speed-accuracy trade-off associated with conventional duty-cycle error calibration techniques. The technique is presented and analyzed in the context of a delta-sigma frequency-to-digital converter (ΔΣ-FDC) based PLL. Analysis and behavioral simulations with nonideal circuit parameters show a 10x improvement in the worst-case convergence time compared to prior art.The third chapter of this dissertation describes a parasitic-capacitance-induced nonlinearity mechanism in charge pumps (CPs) used in fractional-N PLLs, along with a scheme to mitigate it. Presented in the context of a 10 GHz ΔΣ-FDC based PLL, behavioral simulations with nonideal circuit parameters show that the proposed technique reduces the PLL's fractional spurs' level by more than 10 dB, achieving a worst-case in-band spur level below −54 dBc and an integrated RMS jitter below 80 fs. The fourth chapter of this dissertation presents a system architecture review, along with behavioral simulation results, for a 9-11 GHz ΔΣ-FDC PLL IC, targeting 75 fsrms jitter.
Subject Added Entry-Topical Term  
Electrical engineering.
Subject Added Entry-Topical Term  
Engineering.
Subject Added Entry-Topical Term  
Computer science.
Subject Added Entry-Topical Term  
Information technology.
Index Term-Uncontrolled  
Wireless communication
Index Term-Uncontrolled  
Phase-locked loops
Index Term-Uncontrolled  
integrated circuit
Index Term-Uncontrolled  
Reference frequency-doubling
Added Entry-Corporate Name  
University of California, San Diego Electrical and Computer Engineering
Host Item Entry  
Dissertations Abstracts International. 86-01B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:658444

MARC

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■020    ▼a9798383258958
■035    ▼a(MiAaPQ)AAI31331613
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a621.3
■1001  ▼aEissa,  Amr  Ibrahim  Farag.
■24510▼aEnhancement  Techniques  for  Digital  Phase-Locked  Loops.
■260    ▼a[S.l.]▼bUniversity  of  California,  San  Diego.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a155  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-01,  Section:  B.
■500    ▼aAdvisor:  Galton,  Ian.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  San  Diego,  2024.
■520    ▼aThe  performance  of  phase-locked  loops  (PLLs)  is  critical  to  advancing  the  data  rates  in  wired  and  wireless  communication  systems.  Most  PLLs  incorporate  either  analog  filters  and  voltage-controlled  oscillators  (VCOs)  or  digital  filters  and  digitally-controlled  oscillators  (DCOs).  The  former  are  called  analog  PLLs  and  the  latter  are  called  digital  PLLs.  To  date,  analog  PLLs  have  the  best  phase  error  performance,  but  digital  PLLs  occupy  smaller  active  area,  lend  themselves  better  to  digital  calibration  and  signal  processing  techniques,  and  are  more compatible  with  highly-scaled  CMOS  integrated  circuit  (IC)  technology.  Thus,  improving  the  performance  of  digital  PLLs  has  been  the  subject  of  intensive  research  for  many  years.The  first  chapter  of  this  dissertation  presents  an  incremental  frequency  control  (IFC)  scheme  for  DCOs  comprised  of  an  arbitrarily  large  bank  of  unit-weighted  frequency  control  elements  (FCEs).  The  scheme  requires  only  a  pair  of  differential  1-bit  control  signals,  is  inherently  monotonic,  and  avoids  transient  frequency  glitches.  Measurement  results  are  presented  to  demonstrate  the  functionality  of  the  proposed  frequency  control  scheme  and  its  negligible  impact  on  a  PLL's  locking  time  and  phase  noise.The  second  chapter  of  this  dissertation  presents  a  reference  frequency-doubling  (RFD)  technique  that  is  immune  to  crystal  oscillator  duty-cycle  error  and  is  not  subject  to  the  speed-accuracy  trade-off  associated  with  conventional  duty-cycle  error  calibration  techniques.  The  technique  is  presented  and  analyzed  in  the  context  of  a  delta-sigma  frequency-to-digital  converter  (ΔΣ-FDC)  based  PLL.  Analysis  and  behavioral  simulations  with  nonideal  circuit  parameters  show  a  10x  improvement  in  the  worst-case  convergence  time  compared  to  prior  art.The  third  chapter  of  this  dissertation  describes  a  parasitic-capacitance-induced  nonlinearity  mechanism  in  charge  pumps  (CPs)  used  in  fractional-N  PLLs,  along  with  a  scheme  to  mitigate  it.  Presented  in  the  context  of  a  10  GHz  ΔΣ-FDC  based  PLL,  behavioral  simulations  with  nonideal  circuit  parameters  show  that  the  proposed  technique  reduces  the  PLL's  fractional  spurs'  level  by  more  than  10  dB,  achieving  a  worst-case  in-band  spur  level  below  −54  dBc  and  an  integrated  RMS  jitter  below  80  fs. The  fourth  chapter  of  this  dissertation  presents  a  system  architecture  review,  along  with  behavioral  simulation  results,  for  a  9-11  GHz  ΔΣ-FDC  PLL  IC,  targeting  75  fsrms  jitter.
■590    ▼aSchool  code:  0033.
■650  4▼aElectrical  engineering.
■650  4▼aEngineering.
■650  4▼aComputer  science.
■650  4▼aInformation  technology.
■653    ▼aWireless  communication
■653    ▼aPhase-locked  loops
■653    ▼aintegrated  circuit
■653    ▼aReference  frequency-doubling
■690    ▼a0544
■690    ▼a0489
■690    ▼a0984
■690    ▼a0537
■71020▼aUniversity  of  California,  San  Diego▼bElectrical  and  Computer  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g86-01B.
■790    ▼a0033
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162451▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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