ATE44198T1 - Frequenzsynthesierer. - Google Patents

Frequenzsynthesierer.

Info

Publication number
ATE44198T1
ATE44198T1 AT84302477T AT84302477T ATE44198T1 AT E44198 T1 ATE44198 T1 AT E44198T1 AT 84302477 T AT84302477 T AT 84302477T AT 84302477 T AT84302477 T AT 84302477T AT E44198 T1 ATE44198 T1 AT E44198T1
Authority
AT
Austria
Prior art keywords
sequence
divisor value
accumulators
variable frequency
phase noise
Prior art date
Application number
AT84302477T
Other languages
English (en)
Inventor
John Norman Wells
Original Assignee
Marconi Instruments Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10542887&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE44198(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Application granted granted Critical
Publication of ATE44198T1 publication Critical patent/ATE44198T1/de

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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AT84302477T 1983-05-17 1984-04-11 Frequenzsynthesierer. ATE44198T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08313617A GB2140232B (en) 1983-05-17 1983-05-17 Frequency synthesisers
EP84302477A EP0125790B2 (de) 1983-05-17 1984-04-11 Frequenzsynthesierer

Publications (1)

Publication Number Publication Date
ATE44198T1 true ATE44198T1 (de) 1989-07-15

Family

ID=10542887

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84302477T ATE44198T1 (de) 1983-05-17 1984-04-11 Frequenzsynthesierer.

Country Status (5)

Country Link
US (1) US4609881A (de)
EP (1) EP0125790B2 (de)
AT (1) ATE44198T1 (de)
DE (1) DE3478780D1 (de)
GB (1) GB2140232B (de)

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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
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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
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US6032028A (en) * 1996-04-12 2000-02-29 Continentral Electronics Corporation Radio transmitter apparatus and method
DE19640072C2 (de) * 1996-09-28 2003-10-23 Rohde & Schwarz Nach dem Prinzip der fraktionalen Frequenzsynthese arbeitender Frequenzsynthesizer
DE19640071C2 (de) * 1996-09-28 2003-11-27 Rohde & Schwarz Nach dem Prinzip der fraktionalen Frequenzsynthese arbeitender Frequenzsynthesizer
DE19647474C2 (de) * 1996-11-16 2003-03-13 Rohde & Schwarz Nach dem Prinzip der fraktionalen Frequenzsynthese arbeitender Frequenzsynthesizer
JP3132810B2 (ja) * 1997-02-21 2001-02-05 松下電器産業株式会社 拡散型分数分周器
US5821816A (en) * 1997-06-12 1998-10-13 Hewlett-Packard Company Integer division variable frequency synthesis apparatus and method
US5777521A (en) * 1997-08-12 1998-07-07 Motorola Inc. Parallel accumulator fractional-n frequency synthesizer
US6047029A (en) * 1997-09-16 2000-04-04 Telefonaktiebolaget Lm Ericsson Post-filtered delta sigma for controlling a phase locked loop modulator
US6011815A (en) * 1997-09-16 2000-01-04 Telefonaktiebolaget Lm Ericsson Compensated ΔΣ controlled phase locked loop modulator
US6141394A (en) * 1997-12-22 2000-10-31 Philips Electronics North America Corporation Fractional-N frequency synthesizer with jitter compensation
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
NZ507555A (en) * 1999-04-14 2002-10-25 Tait Electronics Ltd Phase lock loop frequency synthesis with extended range of fractional divisors
NZ335704A (en) * 1999-05-11 2001-01-26 Tait Electronics Ltd Nested digital modulators for frequency synthesis
US6717998B2 (en) 1999-12-13 2004-04-06 Matsushita Electric Industrial Co., Ltd. Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method
US6433643B1 (en) * 2000-02-22 2002-08-13 Rockwell Collins, Inc. Reduced latency differentiator
US6581082B1 (en) 2000-02-22 2003-06-17 Rockwell Collins Reduced gate count differentiator
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
US6392455B1 (en) * 2001-03-30 2002-05-21 Koninklijke Philips Electronics N.V. Baud rate generator with fractional divider
US6385276B1 (en) 2001-06-12 2002-05-07 Rf Micro Devices, Inc. Dual-modulus prescaler
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
US6693468B2 (en) 2001-06-12 2004-02-17 Rf Micro Devices, Inc. Fractional-N synthesizer with improved noise performance
US6448831B1 (en) 2001-06-12 2002-09-10 Rf Micro Devices, Inc. True single-phase flip-flop
US6779010B2 (en) 2001-06-12 2004-08-17 Rf Micro Devices, Inc. Accumulator with programmable full-scale range
US6570452B2 (en) 2001-09-26 2003-05-27 Ashvattha Semiconductor, Inc. Fractional-N type frequency synthesizer
GB2383205B (en) 2001-12-14 2005-02-16 Ifr Ltd Low noise synthesiser
US6834084B2 (en) * 2002-05-06 2004-12-21 Rf Micro Devices Inc Direct digital polar modulator
US7801244B2 (en) * 2002-05-16 2010-09-21 Rf Micro Devices, Inc. Am to AM correction system for polar modulator
US7991071B2 (en) * 2002-05-16 2011-08-02 Rf Micro Devices, Inc. AM to PM correction system for polar modulator
RU2223597C1 (ru) * 2002-06-21 2004-02-10 Федеральное государственное унитарное предприятие Научно-производственное предприятие "Полет" Цифровой синтезатор частот
US7038509B1 (en) 2003-10-27 2006-05-02 National Semiconductor Corporation Method and system for providing a phase-locked loop with reduced spurious tones
US7486743B2 (en) 2003-12-29 2009-02-03 Intel Corporation Device and method of measuring frequency domain response in RF modulator
US7274748B1 (en) 2004-06-02 2007-09-25 Rf Micro Devices, Inc. AM to FM correction system for a polar modulator
US7551686B1 (en) 2004-06-23 2009-06-23 Rf Micro Devices, Inc. Multiple polynomial digital predistortion
US7529523B1 (en) 2004-08-23 2009-05-05 Rf Micro Devices, Inc. N-th order curve fit for power calibration in a mobile terminal
RU2286645C1 (ru) * 2005-03-25 2006-10-27 Марийский государственный технический университет Цифровой вычислительный синтезатор
US8224265B1 (en) 2005-06-13 2012-07-17 Rf Micro Devices, Inc. Method for optimizing AM/AM and AM/PM predistortion in a mobile terminal
US7274231B1 (en) 2005-09-15 2007-09-25 Integrated Device Technology, Inc. Low jitter frequency synthesizer
RU2294054C1 (ru) * 2005-10-25 2007-02-20 Государственное образовательное учреждение высшего профессионального образования Марийский государственный технический университет Цифровой вычислительный синтезатор с квадратурными выходами
US7482885B2 (en) * 2005-12-29 2009-01-27 Orca Systems, Inc. Method of frequency synthesis for fast switching
US7877060B1 (en) 2006-02-06 2011-01-25 Rf Micro Devices, Inc. Fast calibration of AM/PM pre-distortion
US7519349B2 (en) * 2006-02-17 2009-04-14 Orca Systems, Inc. Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
US7962108B1 (en) 2006-03-29 2011-06-14 Rf Micro Devices, Inc. Adaptive AM/PM compensation
US7215167B1 (en) 2006-04-28 2007-05-08 Giga-Tronics, Inc. Low noise microwave frequency synthesizer having fast switching
US7208990B1 (en) 2006-04-28 2007-04-24 Giga-Tronics, Inc. Low noise microwave frequency synthesizer having loop accumulation
US7514970B2 (en) * 2006-08-23 2009-04-07 Giga-Tronics, Inc. Decimal frequency synthesizer
US7689182B1 (en) 2006-10-12 2010-03-30 Rf Micro Devices, Inc. Temperature compensated bias for AM/PM improvement
US20080136468A1 (en) * 2006-12-06 2008-06-12 Dandan Li Method and system for doubling phase-frequency detector comparison frequency for a fractional-n pll
US8009762B1 (en) 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter
RU2358384C2 (ru) * 2007-05-31 2009-06-10 Государственное образовательное учреждение высшего профессионального образования Марийский государственный технический университет Цифровой синтезатор частотно- и фазомодулированных сигналов
RU2344541C1 (ru) * 2007-10-08 2009-01-20 Федеральное государственное унитарное предприятие "Научно-производственное предприятие "Полет" Цифровой синтезатор частот
RU2361358C1 (ru) * 2008-01-09 2009-07-10 Открытое акционерное общество "Рязанское конструкторское бюро "Глобус" (ОАО "РКБ "Глобус") Цифровой синтезатор частот
US8489042B1 (en) 2009-10-08 2013-07-16 Rf Micro Devices, Inc. Polar feedback linearization
US8502575B2 (en) 2010-09-28 2013-08-06 Texas Instruments Incorporated Fractional-N PLL using multiple phase comparison frequencies to improve spurious signal performance
RU2491710C1 (ru) * 2012-07-03 2013-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Поволжский государственный технологический университет Цифровой вычислительный синтезатор с быстрой перестройкой частоты
RU2726833C1 (ru) * 2019-10-17 2020-07-15 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Цифровой вычислительный синтезатор с подавлением перекрестных помех
RU2721408C1 (ru) * 2019-11-19 2020-05-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Цифровой вычислительный синтезатор с быстрой перестройкой частоты

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US3217267A (en) * 1963-10-02 1965-11-09 Ling Temco Vought Inc Frequency synthesis using fractional division by digital techniques within a phase-locked loop
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
US4206425A (en) * 1978-08-29 1980-06-03 Rca Corporation Digitized frequency synthesizer
US4330758A (en) * 1980-02-20 1982-05-18 Motorola, Inc. Synchronized frequency synthesizer with high speed lock

Also Published As

Publication number Publication date
GB8313617D0 (en) 1983-06-22
EP0125790A3 (en) 1986-02-19
EP0125790A2 (de) 1984-11-21
DE3478780D1 (en) 1989-07-27
GB2140232A (en) 1984-11-21
EP0125790B1 (de) 1989-06-21
EP0125790B2 (de) 1995-07-05
US4609881A (en) 1986-09-02
GB2140232B (en) 1986-10-29

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