FR2469823B1 - - Google Patents

Info

Publication number
FR2469823B1
FR2469823B1 FR7927706A FR7927706A FR2469823B1 FR 2469823 B1 FR2469823 B1 FR 2469823B1 FR 7927706 A FR7927706 A FR 7927706A FR 7927706 A FR7927706 A FR 7927706A FR 2469823 B1 FR2469823 B1 FR 2469823B1
Authority
FR
France
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
FR7927706A
Other versions
FR2469823A1 (fr
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7927706A priority Critical patent/FR2469823A1/fr
Publication of FR2469823A1 publication Critical patent/FR2469823A1/fr
Application granted granted Critical
Publication of FR2469823B1 publication Critical patent/FR2469823B1/fr
Granted 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
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes
    • H03L1/025—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes and a memory for digitally storing correction values
FR7927706A 1979-11-09 1979-11-09 Generateur de frequences asservi en temperature et synthetiseur de frequences comportant au moins un tel generateur Granted FR2469823A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7927706A FR2469823A1 (fr) 1979-11-09 1979-11-09 Generateur de frequences asservi en temperature et synthetiseur de frequences comportant au moins un tel generateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7927706A FR2469823A1 (fr) 1979-11-09 1979-11-09 Generateur de frequences asservi en temperature et synthetiseur de frequences comportant au moins un tel generateur

Publications (2)

Publication Number Publication Date
FR2469823A1 FR2469823A1 (fr) 1981-05-22
FR2469823B1 true FR2469823B1 (fr) 1985-01-25

Family

ID=9231508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927706A Granted FR2469823A1 (fr) 1979-11-09 1979-11-09 Generateur de frequences asservi en temperature et synthetiseur de frequences comportant au moins un tel generateur

Country Status (1)

Country Link
FR (1) FR2469823A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131638B (en) * 1982-12-02 1986-03-12 Ferranti Plc Microwave frequency generator
DE3629588A1 (de) * 1986-08-30 1988-03-03 Franz Dipl Ing Leitl Kristalloszillator-kompensationsschaltung
JPH03157018A (ja) * 1989-08-10 1991-07-05 Mitsubishi Electric Corp 周波数シンセサイザ
DE4302542A1 (de) * 1993-01-29 1994-08-04 Siemens Ag Oszillatorschaltung mit einem die schwingquarzindividuellen Kenninformationen speichernden Speicher
EP0658004A3 (fr) * 1993-12-07 1996-05-01 Meidensha Electric Mfg Co Ltd Oscillateur à cristal compensé numériquement en température.
JPH08288741A (ja) * 1995-04-14 1996-11-01 Matsushita Electric Ind Co Ltd 水晶発振装置とその調整方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707201A1 (de) * 1976-02-17 1977-08-18 Philcom Electronics Ltd Quarzkristallschwinger
JPS53131702A (en) * 1977-04-21 1978-11-16 Sony Corp Electronic tuning device
US4099137A (en) * 1977-06-10 1978-07-04 Westinghouse Electric Corp. High speed phase lock control for frequency switching
FR2410909A1 (fr) * 1977-11-30 1979-06-29 Hewlett Packard Co Resonateur a cristal de quartz

Also Published As

Publication number Publication date
FR2469823A1 (fr) 1981-05-22

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse