CA2036135A1 - Boucle a phase asservie portant un signal de reference dont la frequence n'est pas un multiple entier de la frequence d'horloge - Google Patents

Boucle a phase asservie portant un signal de reference dont la frequence n'est pas un multiple entier de la frequence d'horloge

Info

Publication number
CA2036135A1
CA2036135A1 CA2036135A CA2036135A CA2036135A1 CA 2036135 A1 CA2036135 A1 CA 2036135A1 CA 2036135 A CA2036135 A CA 2036135A CA 2036135 A CA2036135 A CA 2036135A CA 2036135 A1 CA2036135 A1 CA 2036135A1
Authority
CA
Canada
Prior art keywords
reference signal
integer multiple
locked loop
phase locked
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2036135A
Other languages
English (en)
Other versions
CA2036135C (fr
Inventor
Nicholas J. Molloy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2036135A1 publication Critical patent/CA2036135A1/fr
Application granted granted Critical
Publication of CA2036135C publication Critical patent/CA2036135C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/07—Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
    • H04J3/076—Bit and byte stuffing, e.g. SDH/PDH desynchronisers, bit-leaking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Time-Division Multiplex Systems (AREA)
CA002036135A 1990-08-14 1991-02-12 Boucle a phase asservie portant un signal de reference dont la frequence n'est pas un multiple entier de la frequence d'horloge Expired - Fee Related CA2036135C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US567,490 1990-08-14
US07/567,490 US5052031A (en) 1990-08-14 1990-08-14 Phase locked loop including non-integer multiple frequency reference signal

Publications (2)

Publication Number Publication Date
CA2036135A1 true CA2036135A1 (fr) 1992-02-15
CA2036135C CA2036135C (fr) 1997-01-07

Family

ID=24267382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002036135A Expired - Fee Related CA2036135C (fr) 1990-08-14 1991-02-12 Boucle a phase asservie portant un signal de reference dont la frequence n'est pas un multiple entier de la frequence d'horloge

Country Status (7)

Country Link
US (1) US5052031A (fr)
EP (1) EP0471506B1 (fr)
JP (1) JP2593598B2 (fr)
KR (1) KR100230512B1 (fr)
CA (1) CA2036135C (fr)
DE (1) DE69124315T2 (fr)
TW (1) TW206298B (fr)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208833A (en) * 1991-04-08 1993-05-04 Motorola, Inc. Multi-level symbol synchronizer
JPH04371024A (ja) * 1991-06-19 1992-12-24 Sony Corp Ｐｌｌ周波数シンセサイザ
US5461717A (en) * 1991-06-21 1995-10-24 Cad Forms Technology Inc. Apparatus for transferring data between a host device and portable computers of various sizes and for recharging the batteries of same
US5268935A (en) * 1991-12-20 1993-12-07 At&T Bell Laboratories Synchronous digital signal to asynchronous digital signal desynchronizer
JP3241079B2 (ja) * 1992-02-24 2001-12-25 株式会社日立製作所 ディジタル位相同期回路
GB2264597B (en) * 1992-02-29 1995-05-10 Nec Corp Frequency synthesizer and method of operation
US5404172A (en) * 1992-03-02 1995-04-04 Eeg Enterprises, Inc. Video signal data and composite synchronization extraction circuit for on-screen display
US5287296A (en) * 1992-04-22 1994-02-15 At&T Bell Laboratories Clock generators having programmable fractional frequency division
US5398263A (en) * 1993-01-14 1995-03-14 Motorola, Inc. Autonomous pulse train timing controls for time-mark alignment
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
AU6339594A (en) * 1993-06-09 1994-12-15 Alcatel N.V. Synchronized clock
US5572554A (en) * 1994-07-29 1996-11-05 Loral Corporation Synchronizer and method therefor
US5982210A (en) * 1994-09-02 1999-11-09 Sun Microsystems, Inc. PLL system clock generator with instantaneous clock frequency shifting
US5815016A (en) * 1994-09-02 1998-09-29 Xilinx, Inc. Phase-locked delay loop for clock correction
US5646564A (en) * 1994-09-02 1997-07-08 Xilinx, Inc. Phase-locked delay loop for clock correction
US5768573A (en) * 1996-11-20 1998-06-16 International Business Machines Corporation Method and apparatus for computing a real time clock divisor
FR2757001B1 (fr) * 1996-12-05 1999-02-05 Sgs Thomson Microelectronics Dispositif de decoupage de la periode d'un signal en n parties quasi-egales
JPH10262021A (ja) * 1997-03-17 1998-09-29 Fujitsu Ltd 伝送装置
US5920216A (en) * 1997-04-03 1999-07-06 Advanced Micro Devices, Inc. Method and system for generating digital clock signals of programmable frequency employing programmable delay lines
DE19729477A1 (de) * 1997-07-10 1999-02-11 Nokia Telecommunications Oy Digitaler Phase Locked Loop
EP1012980B1 (fr) * 1997-07-10 2002-03-06 Nokia Networks Oy Boucle numerique a phase asservie
DE19729476C2 (de) * 1997-07-10 2000-04-27 Nokia Networks Oy Numerisch gesteuerter Oszillator
US6661863B1 (en) 1999-04-16 2003-12-09 Infineon Technologies North America Corp. Phase mixer
US6408419B1 (en) 1999-07-01 2002-06-18 Infineon Technologies North America Corp. Trellis code for extended partial response maximum likelihood (EPRML) channel
US6831963B2 (en) * 2000-10-20 2004-12-14 University Of Central Florida EUV, XUV, and X-Ray wavelength sources created from laser plasma produced from liquid metal solutions
US6356134B1 (en) 2000-03-21 2002-03-12 International Business Machines Corporation Universal clock generator circuit and adjustment method for providing a plurality of clock frequencies
US6748546B1 (en) 2000-09-26 2004-06-08 Sun Microsystems, Inc. Method and apparatus for reducing power consumption
US6845457B1 (en) 2000-09-26 2005-01-18 Sun Microsystems, Inc. Method and apparatus for controlling transitions between a first and a second clock frequency
US6728890B1 (en) 2000-09-26 2004-04-27 Sun Microsystems, Inc. Method and apparatus for controlling a bus clock frequency in response to a signal from a requesting component
US6691215B1 (en) * 2000-09-26 2004-02-10 Sun Microsystems, Inc. Method and apparatus for reducing power consumption
EP1244214A1 (fr) * 2001-03-23 2002-09-25 STMicroelectronics Limited Diviseur numérique de fréquence commandé en phase
US6882662B2 (en) * 2001-06-07 2005-04-19 Applied Micro Circuits Corporation Pointer adjustment wander and jitter reduction apparatus for a desynchronizer
KR100423155B1 (ko) * 2001-12-15 2004-03-16 엘지전자 주식회사 디피-피엘엘의 지터 감쇠 장치 및 방법
DE102004046404B4 (de) * 2004-09-24 2006-07-20 Infineon Technologies Ag Schaltungsanordnung und Verfahren zum Bestimmen einer Frequenzdrift in einem Phasenregelkreis
DE102005022126B4 (de) * 2005-05-12 2008-10-02 Siemens Ag Verfahren zum Ermitteln eines Ansteueralgorithmus für einen Zähler zur Bildung eines Taktsignals sowie Zähler- und Steueranordnungen zur Ansteuerung des Zählers
US7675332B1 (en) 2007-01-31 2010-03-09 Altera Corporation Fractional delay-locked loops
US7586344B1 (en) * 2007-10-16 2009-09-08 Lattice Semiconductor Corporation Dynamic delay or advance adjustment of oscillating signal phase
CN110324040A (zh) * 2019-05-06 2019-10-11 杭州阿姆科技有限公司 一种时钟频率调整的方法及装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5057568A (fr) * 1973-09-21 1975-05-20
US3936762A (en) * 1974-06-17 1976-02-03 The Charles Stark Draper Laboratory, Inc. Digital phase-lock loop systems for phase processing of signals
US4030045A (en) * 1976-07-06 1977-06-14 International Telephone And Telegraph Corporation Digital double differential phase-locked loop
US4363002A (en) * 1980-11-13 1982-12-07 Fuller Robert M Clock recovery apparatus for phase shift keyed encoded data
JPS57173230A (en) * 1981-04-17 1982-10-25 Hitachi Ltd Phase synchronizing circuit
US4569063A (en) * 1983-06-22 1986-02-04 Gte Automatic Electric Incorporated Digital phase locking arrangement for synchronizing digital span data
JPS6242633A (ja) * 1985-08-20 1987-02-24 Fujitsu Ltd ユニバ−サル・デイジタルクロツク抽出回路
US4712224A (en) * 1986-10-09 1987-12-08 Rockwell International Corporation Offset digitally controlled oscillator
US4847875A (en) * 1987-02-26 1989-07-11 American Telephone And Telegraph Company Timing circuit including jitter compensation
DE3719582C2 (de) * 1987-06-12 1999-01-28 Philips Broadcast Television S Schaltungsanordnung zur Erzeugung eines Phasenreferenzsignals
JPH01243621A (ja) * 1988-03-24 1989-09-28 Nec Corp ディジタル位相同期発振器
JPH02231831A (ja) * 1989-03-06 1990-09-13 Hitachi Ltd デジタルａｆｃ回路

Also Published As

Publication number Publication date
DE69124315T2 (de) 1997-05-15
KR100230512B1 (ko) 1999-11-15
EP0471506A3 (en) 1992-12-09
US5052031A (en) 1991-09-24
JP2593598B2 (ja) 1997-03-26
TW206298B (fr) 1993-05-21
EP0471506B1 (fr) 1997-01-22
CA2036135C (fr) 1997-01-07
JPH04234225A (ja) 1992-08-21
EP0471506A2 (fr) 1992-02-19
DE69124315D1 (de) 1997-03-06
KR920005502A (ko) 1992-03-28

Similar Documents

Publication Publication Date Title
CA2036135A1 (fr) Boucle a phase asservie portant un signal de reference dont la frequence n'est pas un multiple entier de la frequence d'horloge
CA1097411A (fr) Traduction non-disponible
SE9502329L (sv) N-fraktionell frekvenssyntes med residualfelsrättning och förfarande därav
CA2048645A1 (fr) Synthese fractionnaire sigma-delta multi-accumulateur
CA2050771A1 (fr) Dispositif de poursuite en frequence a boucle a phase asservie dote d'un synthetiseur numerique direct
ATE219612T1 (de) Durch einen direkten digitalen synthetisierer gesteuerter pll-frequenzsynthetisierer mit einem clean-up phasenregelkeis
CA2125443A1 (fr) Circuit pour oscillateur controlable
CA2079320A1 (fr) Synthetiseur de frequence a boucle a asservissement de phase utilisant un synthetiseur numerique direct et un limiteur strict
CA2040848A1 (fr) Synthetiseur de frequence a boucle a asservissement de phase
CA2195277A1 (fr) Synthetiseur de frequence
KR920702571A (ko) 감소된 나머지 에러를 갖는 래치형 누산기 분수 n 음성 합성 장치
WO2005002055A3 (fr) Synthetiseur fractionnel-n et procede de programmation de la phase de sortie
CA2081400A1 (fr) Synthese de frequence au moyen d'une porteuse a frequence commandee modulee par un signal de reaction de boucle a asservissement de phase
EP0220932A3 (fr) Boucle d'asservissement sélective en fréquence et à phases multiples avec des sorties sinusoidales multiphases et numériques
EP0438309A3 (en) Interpolating phase-locked loop frequency synthesizer
CA2093252A1 (fr) Synthetiseur de frequence a faible bruit utilisant des diviseurs a crans demi-entiers et un dispositif analogique de correction du gain
ES2004164A6 (es) Sistema radiotelefonico para comunicar senales de informacion por un canal de frecuencia asignada
CA2050676A1 (fr) Circuit de comptage a deux modules
US5450028A (en) Discrete-time signal processing system
CA2192881A1 (fr) Circuit a boucle a asservissement de phase et dispositif reducteur de bruit pour ce circuit
JPS56158536A (en) Pil oscillation circuit
JPH0834589B2 (ja) サンプリングクロック発生回路
ES2048681A1 (es) Sintetizador digital de frecuencias.
US5349613A (en) Digital phase locked loop, and digital oscillator arranged to be used in the digital phase locked loop
CA2037159A1 (fr) Synthetiseur de frequence a boucle a phase asservie a reponse amelioree

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed