CA2003428C - Synthetiseur de frequences - Google Patents

Synthetiseur de frequences

Info

Publication number
CA2003428C
CA2003428C CA002003428A CA2003428A CA2003428C CA 2003428 C CA2003428 C CA 2003428C CA 002003428 A CA002003428 A CA 002003428A CA 2003428 A CA2003428 A CA 2003428A CA 2003428 C CA2003428 C CA 2003428C
Authority
CA
Canada
Prior art keywords
control signal
signal
frequency
delta
ref
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.)
Expired - Lifetime
Application number
CA002003428A
Other languages
English (en)
Other versions
CA2003428A1 (fr
Inventor
Thomas Atkin Denning Riley
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA002003428A priority Critical patent/CA2003428C/fr
Priority to JP2515269A priority patent/JP2981922B2/ja
Priority to EP90916673A priority patent/EP0501991A1/fr
Priority to AU66406/90A priority patent/AU6640690A/en
Priority to PCT/CA1990/000397 priority patent/WO1991007824A1/fr
Publication of CA2003428A1 publication Critical patent/CA2003428A1/fr
Application granted granted Critical
Publication of CA2003428C publication Critical patent/CA2003428C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • 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
    • H03L7/1974—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 for fractional frequency division
    • H03L7/1976—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 for fractional frequency division using a phase accumulator for controlling the counter or frequency divider

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA002003428A 1989-11-21 1989-11-21 Synthetiseur de frequences Expired - Lifetime CA2003428C (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002003428A CA2003428C (fr) 1989-11-21 1989-11-21 Synthetiseur de frequences
JP2515269A JP2981922B2 (ja) 1989-11-21 1990-11-19 周波数シンセサイザ
EP90916673A EP0501991A1 (fr) 1989-11-21 1990-11-19 Synthetiseur de frequences
AU66406/90A AU6640690A (en) 1989-11-21 1990-11-19 Frequency synthesizer
PCT/CA1990/000397 WO1991007824A1 (fr) 1989-11-21 1990-11-19 Synthetiseur de frequences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002003428A CA2003428C (fr) 1989-11-21 1989-11-21 Synthetiseur de frequences

Publications (2)

Publication Number Publication Date
CA2003428A1 CA2003428A1 (fr) 1991-05-21
CA2003428C true CA2003428C (fr) 1999-12-14

Family

ID=4143592

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002003428A Expired - Lifetime CA2003428C (fr) 1989-11-21 1989-11-21 Synthetiseur de frequences

Country Status (5)

Country Link
EP (1) EP0501991A1 (fr)
JP (1) JP2981922B2 (fr)
AU (1) AU6640690A (fr)
CA (1) CA2003428C (fr)
WO (1) WO1991007824A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055802A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n synthesis
IT1252241B (it) * 1991-12-10 1995-06-05 Alcatel Italia Metodo e sistema per la riduzione del jitter di una struttura a pll (phase loked loop) caratterizzato da un rapporto razionale tra le le frequenze d`ingresso e di uscita.
US5495206A (en) * 1993-10-29 1996-02-27 Motorola, Inc. Fractional N frequency synthesis with residual error correction and method thereof
US5943613A (en) * 1996-11-07 1999-08-24 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing standby current in communications equipment
EP0940922B1 (fr) * 1998-03-03 2002-12-04 Motorola Semiconducteurs S.A. Synthétiseur de fréquence
GB2335322B (en) * 1998-03-13 2002-04-24 Ericsson Telefon Ab L M Phase detector
CA2233831A1 (fr) 1998-03-31 1999-09-30 Tom Riley Synthetiseur fractionnaire-n numerique sigma
EP0954105A1 (fr) * 1998-04-29 1999-11-03 Siemens Aktiengesellschaft Boucle à verrouillage de phase à division fractionnaire
US6708026B1 (en) * 2000-01-11 2004-03-16 Ericsson Inc. Division based local oscillator for frequency synthesis
US6927716B2 (en) 2001-06-15 2005-08-09 Analog Devices, Inc. Variable modulus interpolator, and a variable frequency synthesizer incorporating the variable modulus interpolator
US7424271B2 (en) * 2003-12-04 2008-09-09 Via Technologies Inc. Multi-mode and multi-band RF transceiver and related communications method
US7706495B2 (en) 2004-03-12 2010-04-27 Panasonic Corporation Two-point frequency modulation apparatus
US9484950B1 (en) 2014-10-27 2016-11-01 Arrowhead Center, Inc. Hardware efficient digital signal processing for on-the-fly delta sigma bit stream linear operator and compressor circuits
US12551155B1 (en) 2018-12-11 2026-02-17 Arrowhead Center, Inc. Electrocardiogram sensing and processing
US12431913B1 (en) 2022-06-22 2025-09-30 Arrowhead Center, Inc. Dynamic predictive sampling and processing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211921A1 (fr) * 1985-02-21 1987-03-04 Plessey Overseas Limited Ameliorations relatives aux synthetiseurs
WO1986005045A1 (fr) * 1985-02-21 1986-08-28 Plessey Overseas Limited Ameliorations relatives aux synthetiseurs
DE3826006C1 (fr) * 1988-07-30 1989-10-12 Wandel & Goltermann Gmbh & Co, 7412 Eningen, De
GB8907316D0 (en) * 1989-03-31 1989-09-13 Plessey Co Plc Fractional'n'synthesisers

Also Published As

Publication number Publication date
WO1991007824A1 (fr) 1991-05-30
JPH05506338A (ja) 1993-09-16
AU6640690A (en) 1991-06-13
EP0501991A1 (fr) 1992-09-09
JP2981922B2 (ja) 1999-11-22
CA2003428A1 (fr) 1991-05-21

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