AU5446399A - Frequency synthesizers - Google Patents

Frequency synthesizers

Info

Publication number
AU5446399A
AU5446399A AU54463/99A AU5446399A AU5446399A AU 5446399 A AU5446399 A AU 5446399A AU 54463/99 A AU54463/99 A AU 54463/99A AU 5446399 A AU5446399 A AU 5446399A AU 5446399 A AU5446399 A AU 5446399A
Authority
AU
Australia
Prior art keywords
frequency synthesizers
synthesizers
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.)
Withdrawn
Application number
AU54463/99A
Inventor
Gary Smith Jr.
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of AU5446399A publication Critical patent/AU5446399A/en
Withdrawn legal-status Critical Current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
    • H03L7/183—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 fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—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 fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/101—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the 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
    • H03L7/085—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
AU54463/99A 1998-09-02 1999-08-31 Frequency synthesizers Withdrawn AU5446399A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9818982 1998-09-02
GB9818982A GB2341285B (en) 1998-09-02 1998-09-02 Frequency synthesisers
PCT/JP1999/004713 WO2000014882A1 (en) 1998-09-02 1999-08-31 Frequency synthesizers

Publications (1)

Publication Number Publication Date
AU5446399A true AU5446399A (en) 2000-03-27

Family

ID=10838125

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54463/99A Withdrawn AU5446399A (en) 1998-09-02 1999-08-31 Frequency synthesizers

Country Status (3)

Country Link
AU (1) AU5446399A (en)
GB (1) GB2341285B (en)
WO (1) WO2000014882A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108688B (en) * 2000-06-30 2002-02-28 Nokia Corp Method and arrangement for setting the frequency
GB0202884D0 (en) 2002-02-07 2002-03-27 Nokia Corp Synthesiser
US7321267B2 (en) * 2005-03-23 2008-01-22 Nokia Corporation Compensating capacitive dielectric absorption induced frequency error in a phase locked loop

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611175A (en) * 1970-03-26 1971-10-05 Sylvania Electric Prod Search circuit for frequency synthesizer
JP2841693B2 (en) * 1990-04-19 1998-12-24 日本電気株式会社 PLL frequency synthesizer
EP0595787B1 (en) * 1990-05-21 1998-08-05 Nec Corporation Phase-locked loop circuit
JPH0613898A (en) * 1992-06-29 1994-01-21 Nec Corp Frequency synthesizer
GB2317279B (en) * 1996-09-11 2001-01-24 Nec Technologies Frequency synthesisers

Also Published As

Publication number Publication date
WO2000014882A1 (en) 2000-03-16
GB2341285A (en) 2000-03-08
GB9818982D0 (en) 1998-10-21
GB2341285B (en) 2001-12-19

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Legal Events

Date Code Title Description
MK13 Application withdrawn section 141(2)/reg 8.3(2) - pct appl. non-entering nat. phase, withdrawn by applicant