CA977841A - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number
CA977841A
CA977841A CA163,464A CA163464A CA977841A CA 977841 A CA977841 A CA 977841A CA 163464 A CA163464 A CA 163464A CA 977841 A CA977841 A CA 977841A
Authority
CA
Canada
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.)
Expired
Application number
CA163,464A
Other languages
English (en)
Other versions
CA163464S (en
Inventor
Jean-Claude Basset
Pierre Heins
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA977841A publication Critical patent/CA977841A/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
    • H03L7/16—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
    • H03L7/189—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 comprising a D/A converter for generating a coarse tuning voltage
    • 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
    • H03L7/113—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator
    • 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
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
CA163,464A 1972-02-08 1973-02-07 Frequency synthesizer Expired CA977841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7204105A FR2170908B1 (ja) 1972-02-08 1972-02-08

Publications (1)

Publication Number Publication Date
CA977841A true CA977841A (en) 1975-11-11

Family

ID=9093143

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,464A Expired CA977841A (en) 1972-02-08 1973-02-07 Frequency synthesizer

Country Status (11)

Country Link
US (1) US3825855A (ja)
JP (1) JPS4889661A (ja)
BE (1) BE795045A (ja)
CA (1) CA977841A (ja)
DE (1) DE2305847B2 (ja)
FR (1) FR2170908B1 (ja)
GB (1) GB1388071A (ja)
IT (1) IT984355B (ja)
NL (1) NL7301576A (ja)
NO (1) NO133051C (ja)
SE (1) SE385642B (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456453A (en) * 1974-01-31 1976-11-24 Ibm Phase locked oscillators
US3921095A (en) * 1974-11-14 1975-11-18 Hewlett Packard Co Startable phase-locked loop oscillator
US4009448A (en) * 1976-01-06 1977-02-22 Westinghouse Electric Corporation Phase lock loop for a voltage controlled oscillator
US4083015A (en) * 1976-04-21 1978-04-04 Westinghouse Electric Corporation Fast switching phase lock loop system
US4069462A (en) * 1976-12-13 1978-01-17 Data General Corporation Phase-locked loops
US4151485A (en) * 1977-11-21 1979-04-24 Rockwell International Corporation Digital clock recovery circuit
US4251779A (en) * 1978-02-21 1981-02-17 Picker Corporation Frequency synthesizer apparatus and method in ultrasonic imaging
FR2426358A1 (fr) * 1978-05-17 1979-12-14 Trt Telecom Radio Electr Synthetiseur de frequence a division directe a pas apres virgule
US4272729A (en) * 1979-05-10 1981-06-09 Harris Corporation Automatic pretuning of a voltage controlled oscillator in a frequency synthesizer using successive approximation
US4280104A (en) * 1979-08-10 1981-07-21 Matsushita Electric Corporation Of America Phase locked loop system with improved acquisition
US4339731A (en) * 1980-06-05 1982-07-13 Rockwell International Corporation Stable, fast slew, phase locked loop
FR2513458A1 (fr) * 1981-09-23 1983-03-25 Trt Telecom Radio Electr Procede de gestion des commandes de frequence d'un poste emetteur-recepteur et de la programmation du compteur programmable de son synthetiseur numerique de frequence
FR2514968A1 (fr) * 1981-10-16 1983-04-22 Trt Telecom Radio Electr Synthetiseur de frequence a accord rapide
US4593287A (en) * 1982-09-30 1986-06-03 The Boeing Company FM/CW sweep linearizer and method therefor
US4580107A (en) * 1984-06-06 1986-04-01 The United States Of America As Represented By The Secretary Of The Air Force Phase lock acquisition system having FLL for coarse tuning and PLL for fine tuning
US5331292A (en) * 1992-07-16 1994-07-19 National Semiconductor Corporation Autoranging phase-lock-loop circuit
US5302916A (en) * 1992-12-21 1994-04-12 At&T Bell Laboratories Wide range digital frequency detector
US5546025A (en) * 1994-03-11 1996-08-13 Mitel, Inc. Low frequency discrimator using upper and lower thresholds
JP3367465B2 (ja) * 1999-05-13 2003-01-14 日本電気株式会社 発振周波数調整装置
CN113541915B (zh) * 2021-06-11 2024-04-16 珠海亿智电子科技有限公司 一种宽动态范围的快速时钟恢复实现方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293572A (en) * 1964-06-26 1966-12-20 Devenco Inc Electrically variable resonant circuit controlled by the frequency of a separate pilot input signal
US3611175A (en) * 1970-03-26 1971-10-05 Sylvania Electric Prod Search circuit for frequency synthesizer

Also Published As

Publication number Publication date
NL7301576A (ja) 1973-08-10
FR2170908B1 (ja) 1976-07-23
NO133051C (ja) 1976-02-25
DE2305847A1 (de) 1973-08-16
JPS4889661A (ja) 1973-11-22
GB1388071A (en) 1975-03-19
US3825855A (en) 1974-07-23
FR2170908A1 (ja) 1973-09-21
IT984355B (it) 1974-11-20
DE2305847B2 (de) 1976-10-28
SE385642B (sv) 1976-07-12
BE795045A (nl) 1973-08-06
NO133051B (ja) 1975-11-17

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