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FR2726724B1 - Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio - Google Patents

Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio

Info

Publication number
FR2726724B1
FR2726724B1 FR9413275A FR9413275A FR2726724B1 FR 2726724 B1 FR2726724 B1 FR 2726724B1 FR 9413275 A FR9413275 A FR 9413275A FR 9413275 A FR9413275 A FR 9413275A FR 2726724 B1 FR2726724 B1 FR 2726724B1
Authority
FR
France
Prior art keywords
sensitive
operating
phase locked
channel spacing
radio 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 - Fee Related
Application number
FR9413275A
Other languages
English (en)
Other versions
FR2726724A1 (fr
Inventor
Steven F Gillig
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to FR9413275A priority Critical patent/FR2726724B1/fr
Publication of FR2726724A1 publication Critical patent/FR2726724A1/fr
Application granted granted Critical
Publication of FR2726724B1 publication Critical patent/FR2726724B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H03L2207/08—Modifications of the phase-locked loop for ensuring constant frequency when the power supply fails or is interrupted, e.g. for saving power
    • 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
    • H03L7/197—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
FR9413275A 1994-11-07 1994-11-07 Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio Expired - Fee Related FR2726724B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9413275A FR2726724B1 (fr) 1994-11-07 1994-11-07 Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9413275A FR2726724B1 (fr) 1994-11-07 1994-11-07 Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio

Publications (2)

Publication Number Publication Date
FR2726724A1 FR2726724A1 (fr) 1996-05-10
FR2726724B1 true FR2726724B1 (fr) 1997-01-10

Family

ID=9468548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9413275A Expired - Fee Related FR2726724B1 (fr) 1994-11-07 1994-11-07 Dispositif et procede pour le fonctionnement d'un synthetiseur en frequence de boucle a blocage de phase sensible a l'espacement de canal de frequence radio

Country Status (1)

Country Link
FR (1) FR2726724B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8396003B2 (en) 2007-12-28 2013-03-12 Nokia Corporation Control of radio process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233176A (en) * 1989-06-15 1991-01-02 Hiradastechnika Mech Lab Frequency synthesisers
EP0487548B1 (fr) * 1989-08-02 1997-03-05 Motorola, Inc. Recepteur d'appel selectif synthetise a caracteristiques variables
JP2798142B2 (ja) * 1990-06-15 1998-09-17 三菱電機株式会社 周波数シンセサイザ

Also Published As

Publication number Publication date
FR2726724A1 (fr) 1996-05-10

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse