HK72097A - Frequency synthesizer with spur compensation - Google Patents
Frequency synthesizer with spur compensation Download PDFInfo
- Publication number
- HK72097A HK72097A HK72097A HK72097A HK72097A HK 72097 A HK72097 A HK 72097A HK 72097 A HK72097 A HK 72097A HK 72097 A HK72097 A HK 72097A HK 72097 A HK72097 A HK 72097A
- Authority
- HK
- Hong Kong
- Prior art keywords
- output
- input
- accumulator
- frequency
- value
- Prior art date
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
- H03L7/18—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
- 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
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Claims (6)
- Synthétiseur de fréquence servant à produire une fréquence de sortie synthétisée fo, comprenant : une boucle formant un synthétiseur qui comporte un diviseur programmable (16); un moyen de commande de diviseur (17) fournissant des valeurs de diviseur au diviseur programmable, le moyen de commande de diviseur fournissant des valeurs variables au diviseur programmable en vue d'une division fractionnaire permettant de produire une fréquence de sortie voulue fo, et comportant un premier moyen accumulateur (24) et un deuxième moyen accumulateur (25); le premier moyen accumulateur (24) comportant une entrée destinée à recevoir des données, une première sortie servant à faire varier la valeur du diviseur, et une deuxième sortie servant à fournir des données au deuxième moyen accumulateur, et le deuxième moyen accumulateur (25) comportant une entrée connectée à la deuxième sortie du premier moyen accumulateur et une sortie servant à faire varier la valeur du diviseur; caractérisé en ce que : les premier et deuxième moyens accumulateurs ont chacun une capacité variable.
- Synthétiseur de fréquence selon la revendication 1, comportant en outre un moyen (23) servant à fournir une valeur de décalage aux premier et deuxième moyens accumulateurs.
- Synthétiseur de fréquence selon la revendication 2, où ledit moyen servant à fournir une valeur de décalage comporte un moyen de mémorisation (19), le moyen de mémorisation contenant une information de décalage pour chaque fréquence de sortie voulue fo.
- Synthétiseur de fréquence selon la revendication 3, où ledit moyen de mémorisation (19) comporte une information de capacité servant à déterminer la capacité desdits premier et deuxième moyens accumulateurs.
- Synthétiseur de fréquence selon la revendication 1, où : chacun des moyens accumulateurs (24, 25) comporte un premier additionneur (45) possédant une premier et une deuxième entrée, une sortie de somme et une sortie de report, un deuxième additionneur (46) possédant une premier et une deuxième entrée, une sortie de somme et une sortie de report, la sortie du premier additionneur étant fonctionnellement connectée à la première entrée du deuxième additionneur, un multiplexeur (47) possédant des première et deuxième entrées fonctionnellement connectées aux sorties respectives des premier et deuxième additionneurs et ayant une sortie, et un élément de verrouillage (48) ayant une entrée qui est fonctionnellement connectée à la sortie du multiplexeur et une sortie qui est fonctionnellement connectée à la deuxième entrée du premier additionneur, la première entrée du premier additionneur constitue une entrée du moyen accumulateur, la deuxième entrée du deuxième additionneur constitue une entrée de capacité du moyen accumulateur, la sortie du multiplexeur constitue une sortie du moyen accumulateur, et les sorties de report des premier et deuxième additionneurs constituent, en coopération, une sortie de report du moyen accumulateur.
- Synthétiseur de fréquence selon l'une quelconque des revendications précédentes, comprenant en outre un moyen (22) qui sert à fournir une valeur de décalage au premier moyen accumulateur (24) ou au deuxième moyen accumulateur (25).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/202,065 US4816774A (en) | 1988-06-03 | 1988-06-03 | Frequency synthesizer with spur compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK72097A true HK72097A (en) | 1997-06-06 |
Family
ID=22748377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK72097A HK72097A (en) | 1988-06-03 | 1997-05-29 | Frequency synthesizer with spur compensation |
Country Status (28)
| Country | Link |
|---|---|
| US (1) | US4816774A (fr) |
| EP (1) | EP0344509B1 (fr) |
| JP (1) | JP2645525B2 (fr) |
| KR (1) | KR0164592B1 (fr) |
| CN (1) | CN1016660B (fr) |
| AR (1) | AR246138A1 (fr) |
| AT (1) | ATE104815T1 (fr) |
| AU (1) | AU620110B2 (fr) |
| BR (1) | BR8907360A (fr) |
| CA (1) | CA1315363C (fr) |
| DD (1) | DD283880A5 (fr) |
| DE (1) | DE68914717T2 (fr) |
| DK (1) | DK281690D0 (fr) |
| EG (1) | EG19069A (fr) |
| ES (1) | ES2051321T3 (fr) |
| FI (1) | FI905875A0 (fr) |
| HK (1) | HK72097A (fr) |
| HU (1) | HU217392B (fr) |
| IE (1) | IE65955B1 (fr) |
| IL (1) | IL89833A (fr) |
| MX (1) | MX164871B (fr) |
| MY (1) | MY103991A (fr) |
| PH (1) | PH26602A (fr) |
| PT (1) | PT90641B (fr) |
| RU (1) | RU2085031C1 (fr) |
| TR (1) | TR24163A (fr) |
| WO (1) | WO1989012362A1 (fr) |
| YU (1) | YU47487B (fr) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918403A (en) * | 1988-06-03 | 1990-04-17 | Motorola, Inc. | Frequency synthesizer with spur compensation |
| US4975650A (en) * | 1989-07-24 | 1990-12-04 | Motorola, Inc. | Phase detector |
| JP3122102B2 (ja) * | 1989-09-13 | 2001-01-09 | ソニー株式会社 | 受信機 |
| US5038117A (en) * | 1990-01-23 | 1991-08-06 | Hewlett-Packard Company | Multiple-modulator fractional-N divider |
| US5065408A (en) * | 1990-04-26 | 1991-11-12 | Motorola, Inc. | Fractional-division synthesizer for a voice/data communications systems |
| US5055802A (en) * | 1990-04-30 | 1991-10-08 | Motorola, Inc. | Multiaccumulator sigma-delta fractional-n synthesis |
| US5055800A (en) * | 1990-04-30 | 1991-10-08 | Motorola, Inc. | Fractional n/m synthesis |
| US5021754A (en) * | 1990-07-16 | 1991-06-04 | Motorola, Inc. | Fractional-N synthesizer having modulation spur compensation |
| FR2748872B1 (fr) * | 1990-08-21 | 1998-11-27 | Thomson Trt Defense | Synthetiseur de frequence a boucle a verrouillage de phase a division fractionnaire multiple |
| US5093632A (en) * | 1990-08-31 | 1992-03-03 | Motorola, Inc. | Latched accumulator fractional n synthesis with residual error reduction |
| US5070310A (en) * | 1990-08-31 | 1991-12-03 | Motorola, Inc. | Multiple latched accumulator fractional N synthesis |
| DE4028565A1 (de) * | 1990-09-08 | 1992-03-12 | Philips Patentverwaltung | Oszillator mit phasenregelkreis |
| US5257294A (en) * | 1990-11-13 | 1993-10-26 | National Semiconductor Corporation | Phase-locked loop circuit and method |
| US5111162A (en) * | 1991-05-03 | 1992-05-05 | Motorola, Inc. | Digital frequency synthesizer having AFC and modulation applied to frequency divider |
| US5224132A (en) * | 1992-01-17 | 1993-06-29 | Sciteq Electronics, Inc. | Programmable fractional-n frequency synthesizer |
| US5166642A (en) * | 1992-02-18 | 1992-11-24 | Motorola, Inc. | Multiple accumulator fractional N synthesis with series recombination |
| US5469479A (en) * | 1992-02-27 | 1995-11-21 | Texas Instruments Incorporated | Digital chirp synthesizer |
| US5307071A (en) * | 1992-04-17 | 1994-04-26 | Hughes Aircraft Company | Low noise frequency synthesizer using half integer dividers and analog gain compensation |
| JPH06132816A (ja) * | 1992-06-08 | 1994-05-13 | Sony Tektronix Corp | 位相ロックループ回路 |
| US5371765A (en) * | 1992-07-10 | 1994-12-06 | Hewlett-Packard Company | Binary phase accumulator for decimal frequency synthesis |
| FI923464A7 (fi) * | 1992-07-31 | 1994-02-01 | Nokia Corp | Menetelmä ja järjestelmä radiopuhelimen taajuuksien muodostamiseksi |
| JP3090790B2 (ja) | 1992-08-17 | 2000-09-25 | 富士通株式会社 | 位相同期発振器 |
| US5331293A (en) * | 1992-09-02 | 1994-07-19 | Motorola, Inc. | Compensated digital frequency synthesizer |
| US5305362A (en) * | 1992-12-10 | 1994-04-19 | Hewlett-Packard Company | Spur reduction for multiple modulator based synthesis |
| US5337024A (en) * | 1993-06-22 | 1994-08-09 | Rockwell International Corporation | Phase locked loop frequency modulator using fractional division |
| US5848355A (en) * | 1993-07-07 | 1998-12-08 | Motorola, Inc. | Frequency synthesizer correction using a temperature responsive divisor control |
| US5495206A (en) * | 1993-10-29 | 1996-02-27 | Motorola, Inc. | Fractional N frequency synthesis with residual error correction and method thereof |
| DE19534462C2 (de) * | 1995-09-16 | 1999-08-26 | Temic Semiconductor Gmbh | Übertragungsverfahren |
| US5926515A (en) * | 1995-12-26 | 1999-07-20 | Samsung Electronics Co., Ltd. | Phase locked loop for improving a phase locking time |
| US5684795A (en) * | 1996-01-30 | 1997-11-04 | Motorola, Inc. | Method and apparatus for controlling a fractional-N synthesizer in a time division multiple access system |
| US5889436A (en) * | 1996-11-01 | 1999-03-30 | National Semiconductor Corporation | Phase locked loop fractional pulse swallowing frequency synthesizer |
| FR2763196B1 (fr) * | 1997-05-07 | 1999-07-30 | Thomson Csf | Synthetiseur de frequence coherent a boucle de phase et pas fractionnaires |
| US5777521A (en) * | 1997-08-12 | 1998-07-07 | Motorola Inc. | Parallel accumulator fractional-n frequency synthesizer |
| US6141394A (en) * | 1997-12-22 | 2000-10-31 | Philips Electronics North America Corporation | Fractional-N frequency synthesizer with jitter compensation |
| US6219397B1 (en) * | 1998-03-20 | 2001-04-17 | Samsung Electronics Co., Ltd. | Low phase noise CMOS fractional-N frequency synthesizer for wireless communications |
| US6321074B1 (en) * | 1999-02-18 | 2001-11-20 | Itron, Inc. | Apparatus and method for reducing oscillator frequency pulling during AM modulation |
| JP2000341165A (ja) * | 1999-05-25 | 2000-12-08 | Matsushita Electric Ind Co Ltd | 通信装置、通信方法および記録媒体 |
| FR2796792B1 (fr) * | 1999-07-22 | 2001-10-12 | Cit Alcatel | Dispositif d'emission radioelectrique |
| US6278333B1 (en) | 2000-02-29 | 2001-08-21 | Motorola, Inc. | Phase lock loop with dual state charge pump and method of operating the same |
| JP2001298363A (ja) * | 2000-04-17 | 2001-10-26 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ装置とそれを用いた移動無線機 |
| GB0021800D0 (en) * | 2000-09-05 | 2000-10-18 | Nokia Networks Oy | Fractional-n Frequency Synthesiser |
| US7027397B1 (en) * | 2001-02-15 | 2006-04-11 | Cisco Technology, Inc. | Method and apparatus for accumulating and distributing traffic and flow control information in a packet switching system |
| US8385476B2 (en) | 2001-04-25 | 2013-02-26 | Texas Instruments Incorporated | Digital phase locked loop |
| CN1465029A (zh) * | 2001-06-15 | 2003-12-31 | 阿纳洛格装置公司 | 一个可变模分数计算器,以及一个结合了该可变模分数计算器的可变频率合成器 |
| US20030139169A1 (en) * | 2002-01-18 | 2003-07-24 | Gregory Arreazola | Combination insulated container and entertainment center |
| JP2004104228A (ja) | 2002-09-05 | 2004-04-02 | Matsushita Electric Ind Co Ltd | 信号処理装置および信号処理方法、デルタ・シグマ変調型分数分周pll周波数シンセサイザ、無線通信機器、デルタ・シグマ変調型d/a変換器 |
| US7071787B2 (en) * | 2002-11-22 | 2006-07-04 | Tektronix, Inc. | Method and apparatus for the reduction of phase noise |
| CN1988426B (zh) * | 2005-12-23 | 2010-09-01 | 中兴通讯股份有限公司 | 一种用于光转发板上的参考时钟发送电路及方法 |
| RU2358384C2 (ru) * | 2007-05-31 | 2009-06-10 | Государственное образовательное учреждение высшего профессионального образования Марийский государственный технический университет | Цифровой синтезатор частотно- и фазомодулированных сигналов |
| RU2346381C1 (ru) * | 2007-06-18 | 2009-02-10 | Государственное образовательное учреждение высшего профессионального образования Марийский государственный технический университет | Цифровой синтезатор частот с коммутацией фазовых отсчетов |
| US7929929B2 (en) * | 2007-09-25 | 2011-04-19 | Motorola Solutions, Inc. | Method and apparatus for spur reduction in a frequency synthesizer |
| DE102009048550A1 (de) | 2009-09-29 | 2011-04-07 | Lenze Automation Gmbh | Verfahren zum Erzeugen einer Ausgangsspannung |
| RU2419201C1 (ru) * | 2010-02-24 | 2011-05-20 | Открытое акционерное общество "Концерн "Созвездие" | Адаптивный синтезатор частот с коммутацией элементов кольца фазовой автоподстройки |
| RU2434322C1 (ru) * | 2010-06-23 | 2011-11-20 | Открытое акционерное общество "Концерн "Созвездие" | Синтезатор частот |
| DE102011053121B4 (de) | 2011-08-30 | 2016-02-04 | Imst Gmbh | Erweiterte Delta-Sigma-Tau-Modulatorschaltung für eine Fraktional-N-PLL-Frequenzsynthesizer-Schaltung |
| DE202011108969U1 (de) | 2011-12-10 | 2012-02-02 | Imst Gmbh | Synchron modulierte volldigitale Delta-Sigma-Modulatorschaltung |
| DE102011120769B4 (de) | 2011-12-10 | 2018-09-20 | Imst Gmbh | Synchron modulierte voll-digitale Delta-Sigma-Modulatorschaltung |
| RU169671U1 (ru) * | 2016-11-28 | 2017-03-28 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | Делитель частоты с переменным коэффициентом деления |
| RU2710280C1 (ru) * | 2019-04-18 | 2019-12-25 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" | Цифровой вычислительный синтезатор двухчастотных сигналов |
| RU2701050C1 (ru) * | 2019-05-30 | 2019-09-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" | Цифровой синтезатор фазоманипулированных сигналов |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928813A (en) * | 1974-09-26 | 1975-12-23 | Hewlett Packard Co | Device for synthesizing frequencies which are rational multiples of a fundamental frequency |
| US3976945A (en) * | 1975-09-05 | 1976-08-24 | Hewlett-Packard Company | Frequency synthesizer |
| JPS5291471A (en) * | 1976-01-28 | 1977-08-01 | Toshiba Corp | Clock pulse generator |
| US4184068A (en) * | 1977-11-14 | 1980-01-15 | Harris Corporation | Full binary programmed frequency divider |
| US4231104A (en) * | 1978-04-26 | 1980-10-28 | Teradyne, Inc. | Generating timing signals |
| GB2026268B (en) * | 1978-07-22 | 1982-07-28 | Racal Communcations Equipment | Frequency synthesizers |
| US4423381A (en) * | 1981-01-16 | 1983-12-27 | Cincinnati Electronics Corporation | Pulse control circuit |
| US4468797A (en) * | 1981-02-13 | 1984-08-28 | Oki Electric Industry Co., Ltd. | Swallow counters |
| US4472820A (en) * | 1981-04-06 | 1984-09-18 | Motorola, Inc. | Program swallow counting device using a single synchronous counter for frequency synthesizing |
| GB2140232B (en) * | 1983-05-17 | 1986-10-29 | Marconi Instruments Ltd | Frequency synthesisers |
| US4556984A (en) * | 1983-12-27 | 1985-12-03 | Motorola, Inc. | Frequency multiplier/divider apparatus and method |
| WO1986005046A1 (fr) * | 1985-02-21 | 1986-08-28 | Plessey Overseas Limited | Ameliorations relatives aux synthetiseurs |
| DE3562684D1 (en) * | 1985-05-18 | 1988-06-16 | Itt Ind Gmbh Deutsche | Frequency division circuit for non-integer divisors after the manner of a rate multiplier |
| US4714899A (en) * | 1986-09-30 | 1987-12-22 | Motorola, Inc. | Frequency synthesizer |
-
1988
- 1988-06-03 US US07/202,065 patent/US4816774A/en not_active Expired - Lifetime
-
1989
- 1989-03-27 MY MYPI89000382A patent/MY103991A/en unknown
- 1989-03-28 CA CA000594826A patent/CA1315363C/fr not_active Expired - Lifetime
- 1989-04-04 IL IL89833A patent/IL89833A/xx not_active IP Right Cessation
- 1989-04-07 PH PH38460A patent/PH26602A/en unknown
- 1989-04-27 AR AR89313782A patent/AR246138A1/es active
- 1989-05-11 JP JP1506310A patent/JP2645525B2/ja not_active Expired - Fee Related
- 1989-05-11 FI FI905875A patent/FI905875A0/fi not_active IP Right Cessation
- 1989-05-11 WO PCT/US1989/002040 patent/WO1989012362A1/fr not_active Ceased
- 1989-05-11 KR KR1019900700198A patent/KR0164592B1/ko not_active Expired - Fee Related
- 1989-05-11 HU HU407/89A patent/HU217392B/hu not_active IP Right Cessation
- 1989-05-11 AU AU37410/89A patent/AU620110B2/en not_active Ceased
- 1989-05-11 BR BR898907360A patent/BR8907360A/pt not_active IP Right Cessation
- 1989-05-11 RU SU894831950A patent/RU2085031C1/ru not_active IP Right Cessation
- 1989-05-16 ES ES89108738T patent/ES2051321T3/es not_active Expired - Lifetime
- 1989-05-16 DE DE68914717T patent/DE68914717T2/de not_active Expired - Fee Related
- 1989-05-16 EP EP89108738A patent/EP0344509B1/fr not_active Expired - Lifetime
- 1989-05-16 AT AT8989108738T patent/ATE104815T1/de not_active IP Right Cessation
- 1989-05-23 MX MX16151A patent/MX164871B/es unknown
- 1989-05-23 PT PT90641A patent/PT90641B/pt not_active IP Right Cessation
- 1989-06-01 EG EG26689A patent/EG19069A/xx active
- 1989-06-01 YU YU112489A patent/YU47487B/sh unknown
- 1989-06-02 TR TR89/0466A patent/TR24163A/xx unknown
- 1989-06-02 CN CN89103671A patent/CN1016660B/zh not_active Expired
- 1989-06-02 DD DD89329216A patent/DD283880A5/de not_active IP Right Cessation
- 1989-06-12 IE IE175289A patent/IE65955B1/en not_active IP Right Cessation
-
1990
- 1990-11-27 DK DK281690A patent/DK281690D0/da not_active Application Discontinuation
-
1997
- 1997-05-29 HK HK72097A patent/HK72097A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PF | Patent in force | ||
| PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20070516 |