GB9118230D0 - A frequency synthesiser for generating a range of frequencies - Google Patents

A frequency synthesiser for generating a range of frequencies

Info

Publication number
GB9118230D0
GB9118230D0 GB919118230A GB9118230A GB9118230D0 GB 9118230 D0 GB9118230 D0 GB 9118230D0 GB 919118230 A GB919118230 A GB 919118230A GB 9118230 A GB9118230 A GB 9118230A GB 9118230 D0 GB9118230 D0 GB 9118230D0
Authority
GB
United Kingdom
Prior art keywords
frequencies
generating
range
frequency synthesiser
synthesiser
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Withdrawn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
GB919118230A
Other versions
GB2259201A (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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments 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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB9118230A priority Critical patent/GB2259201A/en
Publication of GB9118230D0 publication Critical patent/GB9118230D0/en
Publication of GB2259201A publication Critical patent/GB2259201A/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Withdrawn legal-status Critical Current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
    • H03L7/08—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
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H03L7/1077—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the phase or frequency detection means
    • 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
    • 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
    • H03L2207/05—Compensating for non-linear characteristics of the controlled oscillator
GB9118230A 1991-08-23 1991-08-23 A frequency synthesiser Withdrawn GB2259201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9118230A GB2259201A (en) 1991-08-23 1991-08-23 A frequency synthesiser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9118230A GB2259201A (en) 1991-08-23 1991-08-23 A frequency synthesiser

Publications (2)

Publication Number Publication Date
GB9118230D0 true GB9118230D0 (en) 1991-10-16
GB2259201A GB2259201A (en) 1993-03-03

Family

ID=10700438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9118230A Withdrawn GB2259201A (en) 1991-08-23 1991-08-23 A frequency synthesiser

Country Status (1)

Country Link
GB (1) GB2259201A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511563B1 (en) * 1981-08-14 1986-05-16 Trt Telecom Radio Electr PHASE LOCKING DEVICE FOR PROVIDING SIGNALS WHOSE FREQUENCY MAY VARY ON A WIDE RANGE
US4771248A (en) * 1985-07-17 1988-09-13 Hughes Aircraft Company Fast phase-lock frequency synthesizer
US4668922A (en) * 1985-07-17 1987-05-26 Hughes Aircraft Company Fast phase-lock frequency synthesizer
GB2183947B (en) * 1985-12-06 1990-07-25 Plessey Co Plc Frequency synthesiser

Also Published As

Publication number Publication date
GB2259201A (en) 1993-03-03

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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)