FR2382796A1 - Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee - Google Patents

Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee

Info

Publication number
FR2382796A1
FR2382796A1 FR7706165A FR7706165A FR2382796A1 FR 2382796 A1 FR2382796 A1 FR 2382796A1 FR 7706165 A FR7706165 A FR 7706165A FR 7706165 A FR7706165 A FR 7706165A FR 2382796 A1 FR2382796 A1 FR 2382796A1
Authority
FR
France
Prior art keywords
phase comparator
circuit
filtering effect
feedback loop
oscillator
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Withdrawn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
FR7706165A
Other languages
English (en)
Inventor
Roger Charbonnier
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 FR7706165A priority Critical patent/FR2382796A1/fr
Publication of FR2382796A1 publication Critical patent/FR2382796A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/005—Modulation sensitivity
    • H03C2200/0054—Filtering of the input modulating signal for obtaining a constant sensitivity of frequency modulation

Landscapes

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

Abstract

Oscillateur modulé en fréquence par un signal BF appliqué à un sommateur 9 qui reçoit en outre le signal de sortie d'un comparateur de phase 4 faisant partie d'une boucle d'asservissement 1,3 - 4. Un circuit integrateur 13 ajoute un signal correcteur qui compense l'effet de l'asservissement sur la modulation de frequence. Application aux émetteurs multiplex en stéréophonie.
FR7706165A 1977-03-03 1977-03-03 Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee Withdrawn FR2382796A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7706165A FR2382796A1 (fr) 1977-03-03 1977-03-03 Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706165A FR2382796A1 (fr) 1977-03-03 1977-03-03 Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee

Publications (1)

Publication Number Publication Date
FR2382796A1 true FR2382796A1 (fr) 1978-09-29

Family

ID=9187482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706165A Withdrawn FR2382796A1 (fr) 1977-03-03 1977-03-03 Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee

Country Status (1)

Country Link
FR (1) FR2382796A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454219A1 (fr) * 1979-04-11 1980-11-07 Siemens Ag Modulateur de frequence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454219A1 (fr) * 1979-04-11 1980-11-07 Siemens Ag Modulateur de frequence

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Legal Events

Date Code Title Description
ST Notification of lapse