GB1444860A - Frequency synthesiser - Google Patents

Frequency synthesiser

Info

Publication number
GB1444860A
GB1444860A GB5379274A GB5379274A GB1444860A GB 1444860 A GB1444860 A GB 1444860A GB 5379274 A GB5379274 A GB 5379274A GB 5379274 A GB5379274 A GB 5379274A GB 1444860 A GB1444860 A GB 1444860A
Authority
GB
United Kingdom
Prior art keywords
voltage
multiplier
arrangement
input
vco6
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.)
Expired
Application number
GB5379274A
Other languages
English (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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB5379274A priority Critical patent/GB1444860A/en
Priority to US05/633,217 priority patent/US4024464A/en
Priority to DE19752554057 priority patent/DE2554057C3/de
Priority to AU87349/75A priority patent/AU501839B2/en
Priority to JP14648775A priority patent/JPS5310414B2/ja
Priority to FR7538120A priority patent/FR2294585A1/fr
Publication of GB1444860A publication Critical patent/GB1444860A/en
Expired 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
    • H03L7/10—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
    • 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
    • H03L2207/04—Modifications for maintaining constant the phase-locked loop damping factor when other loop parameters change

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB5379274A 1974-12-12 1974-12-12 Frequency synthesiser Expired GB1444860A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5379274A GB1444860A (en) 1974-12-12 1974-12-12 Frequency synthesiser
US05/633,217 US4024464A (en) 1974-12-12 1975-11-19 Frequency synthesizer of the phase lock loop type
DE19752554057 DE2554057C3 (de) 1974-12-12 1975-12-02 Frequenzsyntheseanordnung
AU87349/75A AU501839B2 (en) 1974-12-12 1975-12-09 Frequency synthesiser
JP14648775A JPS5310414B2 (enExample) 1974-12-12 1975-12-10
FR7538120A FR2294585A1 (fr) 1974-12-12 1975-12-12 Synthetiseur de frequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5379274A GB1444860A (en) 1974-12-12 1974-12-12 Frequency synthesiser

Publications (1)

Publication Number Publication Date
GB1444860A true GB1444860A (en) 1976-08-04

Family

ID=10468994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5379274A Expired GB1444860A (en) 1974-12-12 1974-12-12 Frequency synthesiser

Country Status (5)

Country Link
US (1) US4024464A (enExample)
JP (1) JPS5310414B2 (enExample)
AU (1) AU501839B2 (enExample)
FR (1) FR2294585A1 (enExample)
GB (1) GB1444860A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426358A1 (fr) * 1978-05-17 1979-12-14 Trt Telecom Radio Electr Synthetiseur de frequence a division directe a pas apres virgule
EP0045795A4 (en) * 1980-02-20 1982-07-13 Motorola Inc SYNCHRONIZED FREQUENCY SYNTHESIZER WITH HIGH SPEED LOCKING.
EP0092657A3 (en) * 1982-04-28 1985-07-03 Deutsche Thomson-Brandt Gmbh Circuit arrangement for tuning high-frequency receivers using a phase-locked loop (pll) circuit
WO1987003760A1 (en) * 1985-12-06 1987-06-18 Plessey Overseas Limited Frequency synthesiser
WO1994014244A1 (en) * 1992-12-11 1994-06-23 Honeywell Inc. Pll synthesizer gain control compensator

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314208A (en) * 1978-05-26 1982-02-02 Racal Group Services Limited Frequency adjusting methods and systems
FR2514968A1 (fr) * 1981-10-16 1983-04-22 Trt Telecom Radio Electr Synthetiseur de frequence a accord rapide
US4847787A (en) * 1984-12-28 1989-07-11 Minolta Camera Kabushiki Kaisha Dot image character generator employing a font memory
US5097219A (en) * 1988-12-15 1992-03-17 Mitsubishi Denki Kabushiki Kaisha Pll for controlling frequency deviation of a variable frequency oscillator
JP2542097B2 (ja) * 1990-01-16 1996-10-09 パイオニア株式会社 クロック生成用ｐｌｌ回路を含む読取線速度可変型ディスク記録情報再生装置
US5495206A (en) * 1993-10-29 1996-02-27 Motorola, Inc. Fractional N frequency synthesis with residual error correction and method thereof
US6233020B1 (en) * 1998-08-07 2001-05-15 Thomson Licensing S.A. Phase lock loop with selectable response
US6150857A (en) * 1998-10-02 2000-11-21 Ericsson Inc. Phase locked loops including analog multiplier networks that can provide constant loop bandwidth
US6291980B1 (en) * 1999-10-13 2001-09-18 Quantum Corporation High-resolution measurement of phase shifts in high frequency phase modulators
EP1193879A1 (fr) * 2000-09-29 2002-04-03 Koninklijke Philips Electronics N.V. Synthétiseur de fréquences à faible bruit et à réponse rapide, et procédé de synthèse de fréquences correspondant
NL1031209C2 (nl) * 2006-02-22 2007-08-24 Enraf Bv Werkwijze en inrichting voor het nauwkeurig vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
NL1034327C2 (nl) * 2007-09-04 2009-03-05 Enraf Bv Werkwijze en inrichting voor het binnen een bepaald meetbereik vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
US8659472B2 (en) * 2008-09-18 2014-02-25 Enraf B.V. Method and apparatus for highly accurate higher frequency signal generation and related level gauge
US8271212B2 (en) * 2008-09-18 2012-09-18 Enraf B.V. Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus
US8224594B2 (en) * 2008-09-18 2012-07-17 Enraf B.V. Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications
US9046406B2 (en) 2012-04-11 2015-06-02 Honeywell International Inc. Advanced antenna protection for radars in level gauging and other applications

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1473202A (fr) * 1966-01-25 1967-03-17 Cit Alcatel Générateur de fréquences régulièrement échelonnées dans une très large bande
US3337814A (en) * 1966-08-23 1967-08-22 Collins Radio Co Phase comparator for use in frequency synthesizer phase locked loop
US3551826A (en) * 1968-05-16 1970-12-29 Raytheon Co Frequency multiplier and frequency waveform generator
US3729688A (en) * 1971-12-15 1973-04-24 Motorola Inc Oscillator with switchable filter control voltage input for rapidly switching to discrete frequency outputs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426358A1 (fr) * 1978-05-17 1979-12-14 Trt Telecom Radio Electr Synthetiseur de frequence a division directe a pas apres virgule
EP0045795A4 (en) * 1980-02-20 1982-07-13 Motorola Inc SYNCHRONIZED FREQUENCY SYNTHESIZER WITH HIGH SPEED LOCKING.
EP0092657A3 (en) * 1982-04-28 1985-07-03 Deutsche Thomson-Brandt Gmbh Circuit arrangement for tuning high-frequency receivers using a phase-locked loop (pll) circuit
WO1987003760A1 (en) * 1985-12-06 1987-06-18 Plessey Overseas Limited Frequency synthesiser
WO1994014244A1 (en) * 1992-12-11 1994-06-23 Honeywell Inc. Pll synthesizer gain control compensator

Also Published As

Publication number Publication date
FR2294585B1 (enExample) 1981-06-26
AU501839B2 (en) 1979-06-28
AU8734975A (en) 1977-06-16
JPS5185358A (enExample) 1976-07-26
US4024464A (en) 1977-05-17
JPS5310414B2 (enExample) 1978-04-13
DE2554057A1 (de) 1976-06-16
DE2554057B2 (de) 1977-06-23
FR2294585A1 (fr) 1976-07-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee