FR2273401A2 - Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct. - Google Patents

Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct.

Info

Publication number
FR2273401A2
FR2273401A2 FR7414490A FR7414490A FR2273401A2 FR 2273401 A2 FR2273401 A2 FR 2273401A2 FR 7414490 A FR7414490 A FR 7414490A FR 7414490 A FR7414490 A FR 7414490A FR 2273401 A2 FR2273401 A2 FR 2273401A2
Authority
FR
France
Prior art keywords
cct
supplementary
wide range
frequency generator
phase lock
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.)
Granted
Application number
FR7414490A
Other languages
French (fr)
Other versions
FR2273401B2 (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.)
Adret Electronique SA
Original Assignee
Adret Electronique 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 Adret Electronique SA filed Critical Adret Electronique SA
Priority to FR7414490A priority Critical patent/FR2273401A2/en
Publication of FR2273401A2 publication Critical patent/FR2273401A2/en
Application granted granted Critical
Publication of FR2273401B2 publication Critical patent/FR2273401B2/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
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

The alternative frequency synthesiser, has a supplementary circuit connected to the output of the basic synthesiser and designed to produce supplementary steps having predetermined values. This supplementary circuit includes means of dividing by a variable whole number (N) the first frequency and adding the supplementary step, as well as means of multiplying the resultant by N. The supplementary circuit is designed to cover at least an octove at its output. Between it and the basic synthesiser is inserted a phase locking loop. The loop has a programmable frequency divider, having a rate equal to a variable power of two. At the output of the supplementary circuit are means which effect a frequency division by the same power.
FR7414490A 1974-04-25 1974-04-25 Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct. Granted FR2273401A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7414490A FR2273401A2 (en) 1974-04-25 1974-04-25 Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7414490A FR2273401A2 (en) 1974-04-25 1974-04-25 Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct.

Publications (2)

Publication Number Publication Date
FR2273401A2 true FR2273401A2 (en) 1975-12-26
FR2273401B2 FR2273401B2 (en) 1979-04-20

Family

ID=9138139

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414490A Granted FR2273401A2 (en) 1974-04-25 1974-04-25 Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct.

Country Status (1)

Country Link
FR (1) FR2273401A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497425A1 (en) * 1980-12-31 1982-07-02 Adret Electronique FREQUENCY SYNTHESIZER WITH FRACTIONAL MULTIPLIER
FR2572232A1 (en) * 1984-10-24 1986-04-25 Adret Electronique Frequency synthesiser with fast switchover
FR2671246A1 (en) * 1990-12-27 1992-07-03 Erfatec Frequency synthesiser with fractional and programmable resolution, and its application to the synthesis of high frequencies
FR2683105A1 (en) * 1991-10-29 1993-04-30 Erfatec Sarl Synthesiser with auxiliary spectral reference loop

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565437A1 (en) * 1984-06-01 1985-12-06 Adret Electronique FREQUENCY SYNTHESIS STAGE OF FREQUENCY ADDING LARGE FREQUENCY STEPS TO AN INITIAL FREQUENCY.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497425A1 (en) * 1980-12-31 1982-07-02 Adret Electronique FREQUENCY SYNTHESIZER WITH FRACTIONAL MULTIPLIER
FR2572232A1 (en) * 1984-10-24 1986-04-25 Adret Electronique Frequency synthesiser with fast switchover
FR2671246A1 (en) * 1990-12-27 1992-07-03 Erfatec Frequency synthesiser with fractional and programmable resolution, and its application to the synthesis of high frequencies
FR2683105A1 (en) * 1991-10-29 1993-04-30 Erfatec Sarl Synthesiser with auxiliary spectral reference loop
EP0544550A1 (en) * 1991-10-29 1993-06-02 Erfatec Synthesiser with an auxiliary loop for providing reference frequency

Also Published As

Publication number Publication date
FR2273401B2 (en) 1979-04-20

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