CA2003428A1 - Synthetiseur de frequences - Google Patents
Synthetiseur de frequencesInfo
- Publication number
- CA2003428A1 CA2003428A1 CA2003428A CA2003428A CA2003428A1 CA 2003428 A1 CA2003428 A1 CA 2003428A1 CA 2003428 A CA2003428 A CA 2003428A CA 2003428 A CA2003428 A CA 2003428A CA 2003428 A1 CA2003428 A1 CA 2003428A1
- Authority
- CA
- Canada
- Prior art keywords
- control signal
- frequency
- phase
- signal
- dependence
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
-
- 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
- H03L7/1976—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 using a phase accumulator for controlling the counter or frequency divider
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002003428A CA2003428C (fr) | 1989-11-21 | 1989-11-21 | Synthetiseur de frequences |
JP2515269A JP2981922B2 (ja) | 1989-11-21 | 1990-11-19 | 周波数シンセサイザ |
EP90916673A EP0501991A1 (fr) | 1989-11-21 | 1990-11-19 | Synthetiseur de frequences |
PCT/CA1990/000397 WO1991007824A1 (fr) | 1989-11-21 | 1990-11-19 | Synthetiseur de frequences |
AU66406/90A AU6640690A (en) | 1989-11-21 | 1990-11-19 | Frequency synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002003428A CA2003428C (fr) | 1989-11-21 | 1989-11-21 | Synthetiseur de frequences |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2003428A1 true CA2003428A1 (fr) | 1991-05-21 |
CA2003428C CA2003428C (fr) | 1999-12-14 |
Family
ID=4143592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002003428A Expired - Lifetime CA2003428C (fr) | 1989-11-21 | 1989-11-21 | Synthetiseur de frequences |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0501991A1 (fr) |
JP (1) | JP2981922B2 (fr) |
AU (1) | AU6640690A (fr) |
CA (1) | CA2003428C (fr) |
WO (1) | WO1991007824A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6236703B1 (en) | 1998-03-31 | 2001-05-22 | Philsar Semiconductor Inc. | Fractional-N divider using a delta-sigma modulator |
US9484950B1 (en) | 2014-10-27 | 2016-11-01 | Arrowhead Center, Inc. | Hardware efficient digital signal processing for on-the-fly delta sigma bit stream linear operator and compressor circuits |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5055802A (en) * | 1990-04-30 | 1991-10-08 | Motorola, Inc. | Multiaccumulator sigma-delta fractional-n synthesis |
IT1252241B (it) * | 1991-12-10 | 1995-06-05 | Alcatel Italia | Metodo e sistema per la riduzione del jitter di una struttura a pll (phase loked loop) caratterizzato da un rapporto razionale tra le le frequenze d`ingresso e di uscita. |
US5495206A (en) * | 1993-10-29 | 1996-02-27 | Motorola, Inc. | Fractional N frequency synthesis with residual error correction and method thereof |
US5943613A (en) * | 1996-11-07 | 1999-08-24 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for reducing standby current in communications equipment |
EP0940922B1 (fr) * | 1998-03-03 | 2002-12-04 | Motorola Semiconducteurs S.A. | Synthétiseur de fréquence |
GB2335322B (en) * | 1998-03-13 | 2002-04-24 | Ericsson Telefon Ab L M | Phase detector |
EP0954105A1 (fr) * | 1998-04-29 | 1999-11-03 | Siemens Aktiengesellschaft | Boucle à verrouillage de phase à division fractionnaire |
US6708026B1 (en) * | 2000-01-11 | 2004-03-16 | Ericsson Inc. | Division based local oscillator for frequency synthesis |
JP2004522361A (ja) | 2001-06-15 | 2004-07-22 | アナログ ディヴァイスィズ インク | 係数可変補間器および係数可変補間器を組み込んだ可変周波数合成器 |
US7424271B2 (en) * | 2003-12-04 | 2008-09-09 | Via Technologies Inc. | Multi-mode and multi-band RF transceiver and related communications method |
US7706495B2 (en) | 2004-03-12 | 2010-04-27 | Panasonic Corporation | Two-point frequency modulation apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0214217B1 (fr) * | 1985-02-21 | 1990-06-06 | Plessey Overseas Limited | Ameliorations relatives aux synthetiseurs |
US4758802A (en) * | 1985-02-21 | 1988-07-19 | Plessey Overseas Limited | Fractional N synthesizer |
DE3826006C1 (fr) * | 1988-07-30 | 1989-10-12 | Wandel & Goltermann Gmbh & Co, 7412 Eningen, De | |
GB8907316D0 (en) * | 1989-03-31 | 1989-09-13 | Plessey Co Plc | Fractional'n'synthesisers |
-
1989
- 1989-11-21 CA CA002003428A patent/CA2003428C/fr not_active Expired - Lifetime
-
1990
- 1990-11-19 EP EP90916673A patent/EP0501991A1/fr not_active Ceased
- 1990-11-19 AU AU66406/90A patent/AU6640690A/en not_active Abandoned
- 1990-11-19 JP JP2515269A patent/JP2981922B2/ja not_active Expired - Fee Related
- 1990-11-19 WO PCT/CA1990/000397 patent/WO1991007824A1/fr not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6236703B1 (en) | 1998-03-31 | 2001-05-22 | Philsar Semiconductor Inc. | Fractional-N divider using a delta-sigma modulator |
US9484950B1 (en) | 2014-10-27 | 2016-11-01 | Arrowhead Center, Inc. | Hardware efficient digital signal processing for on-the-fly delta sigma bit stream linear operator and compressor circuits |
Also Published As
Publication number | Publication date |
---|---|
JP2981922B2 (ja) | 1999-11-22 |
CA2003428C (fr) | 1999-12-14 |
AU6640690A (en) | 1991-06-13 |
JPH05506338A (ja) | 1993-09-16 |
EP0501991A1 (fr) | 1992-09-09 |
WO1991007824A1 (fr) | 1991-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |