GB9525281D0 - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number
GB9525281D0
GB9525281D0 GBGB9525281.3A GB9525281A GB9525281D0 GB 9525281 D0 GB9525281 D0 GB 9525281D0 GB 9525281 A GB9525281 A GB 9525281A GB 9525281 D0 GB9525281 D0 GB 9525281D0
Authority
GB
United Kingdom
Prior art keywords
frequency synthesizer
synthesizer
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Withdrawn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
GBGB9525281.3A
Other versions
GB2294830A (en
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
Priority claimed from JP5222213A external-priority patent/JPH0758637A/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB9525281D0 publication Critical patent/GB9525281D0/en
Publication of GB2294830A publication Critical patent/GB2294830A/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Withdrawn legal-status Critical Current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
    • H03L7/099—Details of the phase-locked loop concerning mainly the 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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals
    • 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
GB9525281A 1993-08-13 1994-08-12 Frequency synthesizer Withdrawn GB2294830A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5222213A JPH0758637A (en) 1993-08-13 1993-08-13 Frequency synthesizer
GB9416381A GB2282285A (en) 1993-08-13 1994-08-12 VCO; Frequency synthesizers

Publications (2)

Publication Number Publication Date
GB9525281D0 true GB9525281D0 (en) 1996-02-07
GB2294830A GB2294830A (en) 1996-05-08

Family

ID=26305447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9525281A Withdrawn GB2294830A (en) 1993-08-13 1994-08-12 Frequency synthesizer

Country Status (1)

Country Link
GB (1) GB2294830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6489121B1 (en) 1999-04-06 2002-12-03 Micromass Limited Methods of identifying peptides and proteins by mass spectrometry

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644118C2 (en) * 1996-10-23 2003-10-23 Siemens Ag frequency synthesizer
US5892410A (en) * 1997-02-19 1999-04-06 Motorola, Inc. Method and apparatus for transmitting radio frequency signals
GB2337382B (en) * 1998-05-16 2000-12-13 Motorola Ltd Voltage controlled oscillator
GB2445980B (en) * 2007-01-26 2009-04-22 Motorola Inc Signal generator apparatus and method of calibration therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120478B (en) * 1982-04-22 1985-10-16 Standard Telephones Cables Ltd Voltage controlled oscillator
JPH0724813Y2 (en) * 1988-02-26 1995-06-05 株式会社東芝 Voltage superposition circuit of electronic tuning tuner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6489121B1 (en) 1999-04-06 2002-12-03 Micromass Limited Methods of identifying peptides and proteins by mass spectrometry

Also Published As

Publication number Publication date
GB2294830A (en) 1996-05-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)