AU2001270694A1 - Frequency synthesis method using a fractional phase locked loop - Google Patents

Frequency synthesis method using a fractional phase locked loop

Info

Publication number
AU2001270694A1
AU2001270694A1 AU2001270694A AU7069401A AU2001270694A1 AU 2001270694 A1 AU2001270694 A1 AU 2001270694A1 AU 2001270694 A AU2001270694 A AU 2001270694A AU 7069401 A AU7069401 A AU 7069401A AU 2001270694 A1 AU2001270694 A1 AU 2001270694A1
Authority
AU
Australia
Prior art keywords
locked loop
synthesis method
phase locked
frequency synthesis
fractional phase
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.)
Abandoned
Application number
AU2001270694A
Inventor
Arnaud Brunet
Sebastien Rieubon
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of AU2001270694A1 publication Critical patent/AU2001270694A1/en
Abandoned 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
    • 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
    • H03L7/1978—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 using a cycle or pulse removing circuit
    • 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
AU2001270694A 2000-06-30 2001-06-28 Frequency synthesis method using a fractional phase locked loop Abandoned AU2001270694A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0008495 2000-06-30
FR0008495A FR2811167A1 (en) 2000-06-30 2000-06-30 FREQUENCY SYNTHESIS METHOD AND DEVICE USING A FRACTIONAL PHASE LOCKED LOOP
PCT/FR2001/002065 WO2002001722A1 (en) 2000-06-30 2001-06-28 Frequency synthesis method using a fractional phase locked loop

Publications (1)

Publication Number Publication Date
AU2001270694A1 true AU2001270694A1 (en) 2002-01-08

Family

ID=8851943

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001270694A Abandoned AU2001270694A1 (en) 2000-06-30 2001-06-28 Frequency synthesis method using a fractional phase locked loop

Country Status (3)

Country Link
AU (1) AU2001270694A1 (en)
FR (1) FR2811167A1 (en)
WO (1) WO2002001722A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015128220A (en) * 2013-12-27 2015-07-09 セイコーエプソン株式会社 Oscillator circuit, oscillator, electronic apparatus, movable body and frequency adjustment method of oscillator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278140A1 (en) * 1987-02-12 1988-08-17 Hewlett-Packard Limited Clock signal generation
GB2238434B (en) * 1989-11-22 1994-03-16 Stc Plc Frequency synthesiser
US5055802A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n synthesis
US5570066A (en) * 1994-08-30 1996-10-29 Motorola, Inc. Method of programming a frequency synthesizer
US6154095A (en) * 1997-02-27 2000-11-28 Seiko Epson Corporation Phase locked loop clock source provided with a plurality of frequency adjustments
US6236275B1 (en) * 1997-10-24 2001-05-22 Ericsson Inc. Digital frequency synthesis by sequential fraction approximations

Also Published As

Publication number Publication date
WO2002001722A1 (en) 2002-01-03
FR2811167A1 (en) 2002-01-04

Similar Documents

Publication Publication Date Title
AU2001275880A1 (en) Digitally-synthesized loop filter circuit particularly useful for a phase locked loop
AU3480000A (en) Three point modulated phase locked loop frequency synthesis system and method
AU2003274348A1 (en) Multimode modulator employing a phase lock loop for wireless communications
AU2001242305A1 (en) A phase detector
GB9828196D0 (en) Phase locked loop clock extraction
AU2003253203A1 (en) Phase locked loop
SG109429A1 (en) Phase-locked loop frequency synthesizer
GB0121713D0 (en) Accumulator based phase locked loop
AU2001227549A1 (en) Digital divider as a local oscillator for frequency synthesis
AU2003267054A1 (en) Phase locked loop
GB2339981B (en) Phase corrected frequency synthesisers
AU6376198A (en) PLL frequency synthesizer using frequency dividers reset by initial phase difference
AU2003230914A1 (en) Phase locked loop (pll) frequency synthesizer and method
AU2001226381A1 (en) Frequency synthesis using a programmable offset synthesizer
GB9922573D0 (en) Phase locked loop frequency generating circuit and a receiver using the circuit
GB0230289D0 (en) Improved phase locked loop
AU2002211610A1 (en) Modulator using a phase-locked loop
AU2001268589A1 (en) Cross linked solid supports for solid phase synthesis
GB2388978B (en) A phase locking loop frequency synthesiser
AU2002224587A1 (en) Analog phase locked loop holdover
AU2001270694A1 (en) Frequency synthesis method using a fractional phase locked loop
AU2002211139A1 (en) A frequency synthesizer and a method for synthesizing a frequency
GB0008640D0 (en) Phase locked loop synthesisers
AU2001273277A1 (en) Phase modulator using a frequency synthesizer
GB9922626D0 (en) Low power phase locked loop frequency sysnthesiser