HK72097A - Frequency synthesizer with spur compensation - Google Patents

Frequency synthesizer with spur compensation Download PDF

Info

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
Application number
HK72097A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lee Martin Frederick
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.
Publication of HK72097A publication Critical patent/HK72097A/en

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)
HK72097A 1988-06-03 1997-05-29 Frequency synthesizer with spur compensation HK72097A (en)

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 (pt)
EP (1) EP0344509B1 (pt)
JP (1) JP2645525B2 (pt)
KR (1) KR0164592B1 (pt)
CN (1) CN1016660B (pt)
AR (1) AR246138A1 (pt)
AT (1) ATE104815T1 (pt)
AU (1) AU620110B2 (pt)
BR (1) BR8907360A (pt)
CA (1) CA1315363C (pt)
DD (1) DD283880A5 (pt)
DE (1) DE68914717T2 (pt)
DK (1) DK281690D0 (pt)
EG (1) EG19069A (pt)
ES (1) ES2051321T3 (pt)
FI (1) FI905875A7 (pt)
HK (1) HK72097A (pt)
HU (1) HU217392B (pt)
IE (1) IE65955B1 (pt)
IL (1) IL89833A (pt)
MX (1) MX164871B (pt)
MY (1) MY103991A (pt)
PH (1) PH26602A (pt)
PT (1) PT90641B (pt)
RU (1) RU2085031C1 (pt)
TR (1) TR24163A (pt)
WO (1) WO1989012362A1 (pt)
YU (1) YU47487B (pt)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
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
US5055800A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Fractional n/m synthesis
US5055802A (en) 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n 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
DE60215806T2 (de) * 2001-06-15 2007-09-06 Analog Devices Inc., Norwood Interpolator mit variablem modul und variabler frequenzsynthesizer mit dem interpolator mit variablem modul
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
DE102011120769B4 (de) 2011-12-10 2018-09-20 Imst Gmbh Synchron modulierte voll-digitale Delta-Sigma-Modulatorschaltung
DE202011108969U1 (de) 2011-12-10 2012-02-02 Imst Gmbh Synchron modulierte volldigitale 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)

* Cited by examiner, † Cited by third party
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
EP0211921A1 (en) * 1985-02-21 1987-03-04 Plessey Overseas Limited Improvement in or relating to synthesisers
EP0202347B1 (de) * 1985-05-18 1988-05-11 Deutsche ITT Industries GmbH Frequenzteilerschaltung für nichtganze Teilungszahlen nach Art eines Rate-Multipliers
US4714899A (en) * 1986-09-30 1987-12-22 Motorola, Inc. Frequency synthesizer

Also Published As

Publication number Publication date
FI905875A0 (fi) 1990-11-28
ATE104815T1 (de) 1994-05-15
IL89833A0 (en) 1989-12-15
EP0344509A3 (en) 1990-07-18
JP2645525B2 (ja) 1997-08-25
IE65955B1 (en) 1995-11-29
MX164871B (es) 1992-09-29
HU217392B (hu) 2000-01-28
AU3741089A (en) 1990-01-05
HUT57494A (en) 1991-11-28
CN1016660B (zh) 1992-05-13
US4816774A (en) 1989-03-28
IE891752L (en) 1989-12-03
EG19069A (en) 1994-07-30
EP0344509A2 (en) 1989-12-06
PT90641B (pt) 1994-02-28
TR24163A (tr) 1991-04-26
AU620110B2 (en) 1992-02-13
DK281690A (da) 1990-11-27
KR900702661A (ko) 1990-12-08
YU112489A (sh) 1993-05-28
AR246138A1 (es) 1994-03-30
DE68914717D1 (de) 1994-05-26
DE68914717T2 (de) 1994-10-20
JPH03504790A (ja) 1991-10-17
WO1989012362A1 (en) 1989-12-14
MY103991A (en) 1993-10-30
FI905875A7 (fi) 1990-11-28
PH26602A (en) 1992-08-19
IL89833A (en) 1992-07-15
PT90641A (pt) 1989-12-29
DK281690D0 (da) 1990-11-27
HU893407D0 (en) 1991-09-30
YU47487B (sh) 1995-10-03
ES2051321T3 (es) 1994-06-16
BR8907360A (pt) 1991-03-26
CN1040119A (zh) 1990-02-28
CA1315363C (en) 1993-03-30
EP0344509B1 (en) 1994-04-20
RU2085031C1 (ru) 1997-07-20
DD283880A5 (de) 1990-10-24
KR0164592B1 (ko) 1999-03-20

Similar Documents

Publication Publication Date Title
EP0344509B1 (en) Frequency synthesizer with spur compensation
US4918403A (en) Frequency synthesizer with spur compensation
EP0479969B1 (en) Fractional-division synthesizer for a voice/data communications system
US4609881A (en) Frequency synthesizers
EP1330035B1 (en) Fractional-N frequency synthesizer with sine wave generator
US4998072A (en) High resolution direct digital synthesizer
US6927716B2 (en) Variable modulus interpolator, and a variable frequency synthesizer incorporating the variable modulus interpolator
EP0373768B1 (en) Digital frequency divider
JPH0439690B2 (pt)
US4241308A (en) Digital numerically controlled oscillator
US4556984A (en) Frequency multiplier/divider apparatus and method
EP1307960B1 (en) Frequency synthesizer
US4145667A (en) Phase locked loop frequency synthesizer using digital modulo arithmetic
US6316982B1 (en) Digital clock with controllable phase skew
US4514696A (en) Numerically controlled oscillator
US4396991A (en) Long term response enhancement for digital phase-locked loop
SU1621170A2 (ru) Цифровой синтезатор частоты пр мого действи

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