GB0114423D0 - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number
GB0114423D0
GB0114423D0 GB0114423A GB0114423A GB0114423D0 GB 0114423 D0 GB0114423 D0 GB 0114423D0 GB 0114423 A GB0114423 A GB 0114423A GB 0114423 A GB0114423 A GB 0114423A GB 0114423 D0 GB0114423 D0 GB 0114423D0
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Withdrawn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
GB0114423A
Other versions
GB2376578A (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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to GB0114423A priority Critical patent/GB2376578A/en
Publication of GB0114423D0 publication Critical patent/GB0114423D0/en
Publication of GB2376578A publication Critical patent/GB2376578A/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Withdrawn legal-status Critical Current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
    • H03L7/1806—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 the frequency divider comprising a phase accumulator generating the frequency divided signal
    • 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
    • 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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal
    • H03L7/148—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal said digital means comprising a counter or a divider
GB0114423A 2001-06-13 2001-06-13 Frequency synthesizer Withdrawn GB2376578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0114423A GB2376578A (en) 2001-06-13 2001-06-13 Frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0114423A GB2376578A (en) 2001-06-13 2001-06-13 Frequency synthesizer

Publications (2)

Publication Number Publication Date
GB0114423D0 true GB0114423D0 (en) 2001-08-08
GB2376578A GB2376578A (en) 2002-12-18

Family

ID=9916511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0114423A Withdrawn GB2376578A (en) 2001-06-13 2001-06-13 Frequency synthesizer

Country Status (1)

Country Link
GB (1) GB2376578A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926587C2 (en) * 1979-06-30 1983-12-01 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Frequency synthesis arrangement
JPH04154318A (en) * 1990-10-18 1992-05-27 Fujitsu Ltd Pll frequency synthesizer
EP0482823B1 (en) * 1990-10-22 1998-08-26 Nec Corporation PLL frequency synthesizer capable of changing an output frequency at a high speed

Also Published As

Publication number Publication date
GB2376578A (en) 2002-12-18

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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)