FR2671246B1 - Synthetiseur de frequence a resolution fractionnaire et programmable et son application a la synthese de frequences elevees. - Google Patents
Synthetiseur de frequence a resolution fractionnaire et programmable et son application a la synthese de frequences elevees.Info
- Publication number
- FR2671246B1 FR2671246B1 FR9016594A FR9016594A FR2671246B1 FR 2671246 B1 FR2671246 B1 FR 2671246B1 FR 9016594 A FR9016594 A FR 9016594A FR 9016594 A FR9016594 A FR 9016594A FR 2671246 B1 FR2671246 B1 FR 2671246B1
- Authority
- FR
- France
- Prior art keywords
- fractional
- synthesis
- application
- frequency synthesizer
- high frequencies
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
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
-
- 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
- H03L7/1806—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 the frequency divider comprising a phase accumulator generating the frequency divided signal
-
- 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
- H03L7/1974—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 for fractional frequency division
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016594A FR2671246B1 (fr) | 1990-12-27 | 1990-12-27 | Synthetiseur de frequence a resolution fractionnaire et programmable et son application a la synthese de frequences elevees. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016594A FR2671246B1 (fr) | 1990-12-27 | 1990-12-27 | Synthetiseur de frequence a resolution fractionnaire et programmable et son application a la synthese de frequences elevees. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2671246A1 FR2671246A1 (fr) | 1992-07-03 |
FR2671246B1 true FR2671246B1 (fr) | 1993-04-16 |
Family
ID=9403928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9016594A Expired - Fee Related FR2671246B1 (fr) | 1990-12-27 | 1990-12-27 | Synthetiseur de frequence a resolution fractionnaire et programmable et son application a la synthese de frequences elevees. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2671246B1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU711590B2 (en) * | 1995-03-16 | 1999-10-14 | Qualcomm Incorporated | Direct digital synthesizer driven PLL frequency synthesizer with clean-up PLL |
DE19608666A1 (de) * | 1996-03-06 | 1997-09-11 | Bosch Gmbh Robert | Verfahren und Anordnung zur Ableitung von mehreren Taktsignalen |
JP3395529B2 (ja) * | 1996-06-28 | 2003-04-14 | 三菱電機株式会社 | 周波数シンセサイザ |
US6954114B2 (en) * | 2002-04-26 | 2005-10-11 | Broadcom Corporation | NCO with rational frequency and normalized phase |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2273401A2 (en) * | 1974-04-25 | 1975-12-26 | Adret Electronique | Wide range frequency generator with supplementary step cct. - has phase lock loop with programmable divider before cct. |
FR2497425B1 (fr) * | 1980-12-31 | 1985-10-31 | Adret Electronique | Synthetiseur de frequence a multiplicateur fractionnaire |
AU617455B2 (en) * | 1988-05-06 | 1991-11-28 | Alcatel N.V. | A digital frequency synthesizer |
-
1990
- 1990-12-27 FR FR9016594A patent/FR2671246B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2671246A1 (fr) | 1992-07-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |