SG46701A1 - Fractional n frequency synthesis with residual error correction and method thereof - Google Patents

Fractional n frequency synthesis with residual error correction and method thereof

Info

Publication number
SG46701A1
SG46701A1 SG1996008738A SG1996008738A SG46701A1 SG 46701 A1 SG46701 A1 SG 46701A1 SG 1996008738 A SG1996008738 A SG 1996008738A SG 1996008738 A SG1996008738 A SG 1996008738A SG 46701 A1 SG46701 A1 SG 46701A1
Authority
SG
Singapore
Prior art keywords
fractional
error correction
residual error
frequency synthesis
synthesis
Prior art date
Application number
SG1996008738A
Other languages
English (en)
Inventor
Alexander W Hietala
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 SG46701A1 publication Critical patent/SG46701A1/en

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
    • H03B1/00—Details
    • H03B1/04—Reducing undesired oscillations, e.g. harmonics
    • 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0895—Details of the current generators
    • H03L7/0898—Details of the current generators the source or sink current values being variable
    • 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
SG1996008738A 1993-10-29 1994-09-16 Fractional n frequency synthesis with residual error correction and method thereof SG46701A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/146,257 US5495206A (en) 1993-10-29 1993-10-29 Fractional N frequency synthesis with residual error correction and method thereof

Publications (1)

Publication Number Publication Date
SG46701A1 true SG46701A1 (en) 1998-02-20

Family

ID=22516544

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008738A SG46701A1 (en) 1993-10-29 1994-09-16 Fractional n frequency synthesis with residual error correction and method thereof

Country Status (15)

Country Link
US (1) US5495206A (zh)
JP (1) JP3089485B2 (zh)
KR (1) KR0153180B1 (zh)
CN (1) CN1052353C (zh)
AU (1) AU7874194A (zh)
BR (1) BR9405979A (zh)
CA (1) CA2150549C (zh)
DE (2) DE4498263T1 (zh)
FR (1) FR2715012B1 (zh)
GB (1) GB2289173B (zh)
RU (1) RU2134930C1 (zh)
SE (1) SE516301C2 (zh)
SG (1) SG46701A1 (zh)
WO (1) WO1995012243A1 (zh)
ZA (1) ZA947835B (zh)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3319677B2 (ja) * 1995-08-08 2002-09-03 三菱電機株式会社 周波数シンセサイザ
US5722052A (en) * 1996-02-28 1998-02-24 Motorola, Inc. Switching current mirror for a phase locked loop frequency synthesizer and communication device using same
US6094100A (en) * 1996-05-20 2000-07-25 Sony Corporation PLL synthesizer apparatus
JPH09312567A (ja) * 1996-05-20 1997-12-02 Sony Corp Ｐｌｌ周波数シンセサイザの制御回路
US6249155B1 (en) 1997-01-21 2001-06-19 The Connor Winfield Corporation Frequency correction circuit for a periodic source such as a crystal oscillator
JP3923150B2 (ja) 1997-10-16 2007-05-30 日本テキサス・インスツルメンツ株式会社 周波数シンセサイザ
US6141394A (en) * 1997-12-22 2000-10-31 Philips Electronics North America Corporation Fractional-N frequency synthesizer with jitter compensation
EP0940922B1 (en) * 1998-03-03 2002-12-04 Motorola Semiconducteurs S.A. Frequency synthesiser
CA2233831A1 (en) 1998-03-31 1999-09-30 Tom Riley Digital-sigma fractional-n synthesizer
DE19840241C1 (de) * 1998-09-03 2000-03-23 Siemens Ag Digitaler PLL (Phase Locked Loop)-Frequenzsynthesizer
US6442381B1 (en) * 1998-10-30 2002-08-27 Echelon Corporation Method and apparatus for defining and generating local oscillator signals for down converter
US6327319B1 (en) * 1998-11-06 2001-12-04 Motorola, Inc. Phase detector with frequency steering
US6624761B2 (en) * 1998-12-11 2003-09-23 Realtime Data, Llc Content independent data compression method and system
US6130561A (en) * 1998-12-28 2000-10-10 Philips Electronics North America Corporation Method and apparatus for performing fractional division charge compensation in a frequency synthesizer
US6157232A (en) * 1999-03-18 2000-12-05 Nec Corporation Local clock generator
US6434707B1 (en) 1999-06-07 2002-08-13 Motorola, Inc. Low phase jitter clock signal generation circuit
US6366174B1 (en) 2000-02-21 2002-04-02 Lexmark International, Inc. Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking
US6564039B1 (en) 2000-02-29 2003-05-13 Motorola, Inc. Frequency generation circuit and method of operating a tranceiver
US6747987B1 (en) 2000-02-29 2004-06-08 Motorola, Inc. Transmit modulation circuit and method of operating a transmitter
FR2807587B1 (fr) * 2000-04-11 2002-06-28 Thomson Csf Synthetiseur fractionnaire comportant une compensation de la gigue de phase
US6785527B2 (en) 2001-04-02 2004-08-31 Tektronix, Inc. Conversion spur avoidance in a multi-conversion radio frequency receiver
US6779010B2 (en) 2001-06-12 2004-08-17 Rf Micro Devices, Inc. Accumulator with programmable full-scale range
US6693468B2 (en) 2001-06-12 2004-02-17 Rf Micro Devices, Inc. Fractional-N synthesizer with improved noise performance
US6385276B1 (en) 2001-06-12 2002-05-07 Rf Micro Devices, Inc. Dual-modulus prescaler
US6448831B1 (en) 2001-06-12 2002-09-10 Rf Micro Devices, Inc. True single-phase flip-flop
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
US6658043B2 (en) * 2001-10-26 2003-12-02 Lexmark International, Inc. Method and apparatus for providing multiple spread spectrum clock generator circuits with overlapping output frequencies
US6600378B1 (en) 2002-01-18 2003-07-29 Nokia Corporation Fractional-N frequency synthesizer with sine wave generator
CN1643794A (zh) * 2002-03-28 2005-07-20 凯奔研究公司 用于分数分频器的相位误差消除电路和方法和含有该相位误差消除电路的电路
US7158603B2 (en) * 2002-12-26 2007-01-02 Freescale Semiconductor, Inc. Method and apparatus for compensating deviation variances in a 2-level FSK FM transmitter
EP1458101B1 (en) * 2003-03-14 2005-11-30 STMicroelectronics S.r.l. A fractional-type phase-locked loop circuit
US7324795B2 (en) * 2003-09-23 2008-01-29 Nokia Corporation Method of controlling phase locked loop in mobile station, and mobile station
ATE365397T1 (de) * 2004-01-30 2007-07-15 Freescale Semiconductor Inc Doppelzugriffsmodulator mit einem frequenzsynthetisierer
KR100666479B1 (ko) 2004-08-30 2007-01-09 삼성전자주식회사 시그마 델타 변조기를 공유하는 수신 및 송신 채널 분수분주 위상 고정 루프를 포함한 주파수 합성기 및 그 동작방법
US7512205B1 (en) * 2005-03-01 2009-03-31 Network Equipment Technologies, Inc. Baud rate generation using phase lock loops
KR100801034B1 (ko) * 2006-02-07 2008-02-04 삼성전자주식회사 지연된 클럭 신호들을 이용하여 시그마-델타 변조시노이즈을 줄이는 방법과 이를 이용한 프랙셔널 분주 방식의위상고정루프
WO2007109743A2 (en) * 2006-03-21 2007-09-27 Multigig Inc. Frequency divider
CN102439844B (zh) * 2010-08-06 2015-02-11 松下电器产业株式会社 振荡器
US9197403B2 (en) 2012-07-20 2015-11-24 Freescale Semiconductor, Inc. Calibration arrangement for frequency synthesizers
RU2504891C1 (ru) * 2012-11-27 2014-01-20 Закрытое акционерное общество "Научно-производственный центр "Алмаз-Фазотрон" Способ генерации выходной частоты цифрового синтезатора прямого синтеза
RU2623892C1 (ru) * 2016-03-09 2017-06-29 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военно-космическая академия имени А.Ф. Можайского" Министерства обороны Российской Федерации Способ передачи фазы опорного генератора по фидеру произвольной длины
US10965297B1 (en) * 2020-03-03 2021-03-30 Samsung Electronics Co., Ltd Sigma-delta modulation quantization error reduction technique for fractional-N phase-locked loop (PLL)

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1444860A (en) * 1974-12-12 1976-08-04 Mullard Ltd Frequency synthesiser
GB1560233A (en) * 1977-02-02 1980-01-30 Marconi Co Ltd Frequency synthesisers
GB2026268B (en) * 1978-07-22 1982-07-28 Racal Communcations Equipment Frequency synthesizers
DE3015484A1 (de) * 1980-04-22 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Verfahren zur frequenzstabilisierung eines hochfrequenten freischwingenden oszillators
GB2140232B (en) * 1983-05-17 1986-10-29 Marconi Instruments Ltd Frequency synthesisers
FR2557401B1 (fr) * 1983-12-27 1986-01-24 Thomson Csf Synthetiseur de frequences a division fractionnaire, a faible gigue de phase et utilisation de ce synthetiseur
US4573023A (en) * 1984-08-07 1986-02-25 John Fluke Mfg. Co., Inc. Multiple-multiple modulus prescaler for a phase-locked loop
GB2173659B (en) * 1985-02-06 1988-06-08 Plessey Co Plc Frequency synthesisers
WO1986005046A1 (en) * 1985-02-21 1986-08-28 Plessey Overseas Limited Improvement in or relating to synthesisers
JPS62502230A (ja) * 1985-02-21 1987-08-27 シーメンス　プレッシー　エレクトロニック　システムズ　リミテッド 周波数合成器またはそれに関する改良
US4815018A (en) * 1985-12-24 1989-03-21 Hughes Aircraft Company Spurless fractional divider direct digital frequency synthesizer and method
US4743867A (en) * 1987-08-03 1988-05-10 Motorola, Inc. Compensation circuitry for dual port phase-locked loops
US4810977A (en) * 1987-12-22 1989-03-07 Hewlett-Packard Company Frequency modulation in phase-locked loops
GB2214012B (en) * 1987-12-23 1992-01-22 Marconi Instruments Ltd Frequency or phase modulation
GB2217535B (en) * 1988-04-15 1992-12-16 Racal Res Ltd Digital circuit arrangement
AU617455B2 (en) * 1988-05-06 1991-11-28 Alcatel N.V. A digital frequency synthesizer
US4816774A (en) * 1988-06-03 1989-03-28 Motorola, Inc. Frequency synthesizer with spur compensation
GB2228840B (en) * 1989-03-04 1993-02-10 Racal Dana Instr Ltd Frequency synthesisers
GB8907316D0 (en) * 1989-03-31 1989-09-13 Plessey Co Plc Fractional'n'synthesisers
CA2003428C (en) * 1989-11-21 1999-12-14 Thomas Atkin Denning Riley Frequency synthesizer
GB2238434B (en) * 1989-11-22 1994-03-16 Stc Plc Frequency synthesiser
CA2019297A1 (en) * 1990-01-23 1991-07-23 Brian M. Miller Multiple-modulator fractional-n divider
US5055802A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n synthesis
US5093632A (en) * 1990-08-31 1992-03-03 Motorola, Inc. Latched accumulator fractional n synthesis with residual error reduction
US5166642A (en) * 1992-02-18 1992-11-24 Motorola, Inc. Multiple accumulator fractional N synthesis with series recombination
US5256981A (en) * 1992-02-27 1993-10-26 Hughes Aircraft Company Digital error corrected fractional-N synthesizer and method
US5339050A (en) * 1993-04-27 1994-08-16 National Semiconductor Corp. Frequency synthesizing phase lock loop with unvarying loop parameters

Also Published As

Publication number Publication date
SE516301C2 (sv) 2001-12-17
JP3089485B2 (ja) 2000-09-18
FR2715012A1 (fr) 1995-07-13
DE4498263T1 (de) 1996-01-11
DE4498263C2 (de) 2003-02-20
GB2289173B (en) 1998-12-16
BR9405979A (pt) 1996-01-09
CA2150549C (en) 1999-04-06
JPH08505993A (ja) 1996-06-25
AU7874194A (en) 1995-05-22
ZA947835B (en) 1995-05-18
GB2289173A (en) 1995-11-08
RU2134930C1 (ru) 1999-08-20
US5495206A (en) 1996-02-27
CN1052353C (zh) 2000-05-10
KR0153180B1 (ko) 1998-12-15
WO1995012243A1 (en) 1995-05-04
GB9511969D0 (en) 1995-09-06
SE9502329D0 (sv) 1995-06-28
FR2715012B1 (fr) 1998-06-12
SE9502329L (sv) 1995-08-29
CA2150549A1 (en) 1995-05-04
CN1116017A (zh) 1996-01-31
KR960700556A (ko) 1996-01-20

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