DE69506112D1 - Frequenzsynthetisierer mit gebrochenem teilverhältnis mit delta-sigma frequenzdiskriminator - Google Patents

Frequenzsynthetisierer mit gebrochenem teilverhältnis mit delta-sigma frequenzdiskriminator

Info

Publication number
DE69506112D1
DE69506112D1 DE69506112T DE69506112T DE69506112D1 DE 69506112 D1 DE69506112 D1 DE 69506112D1 DE 69506112 T DE69506112 T DE 69506112T DE 69506112 T DE69506112 T DE 69506112T DE 69506112 D1 DE69506112 D1 DE 69506112D1
Authority
DE
Germany
Prior art keywords
frequency
delta
synthetizer
part ratio
sigma
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.)
Expired - Lifetime
Application number
DE69506112T
Other languages
English (en)
Other versions
DE69506112T2 (de
Inventor
Thomas Atkin Denning Riley
Miles Alexander Copeland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of DE69506112D1 publication Critical patent/DE69506112D1/de
Publication of DE69506112T2 publication Critical patent/DE69506112T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/113—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator
DE69506112T 1994-05-12 1995-05-12 Frequenzsynthetisierer mit gebrochenem teilverhältnis mit delta-sigma frequenzdiskriminator Expired - Lifetime DE69506112T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002123477A CA2123477A1 (en) 1994-05-12 1994-05-12 Delta-sigma fractional-n frequency synthesizer and frequency discriminator suitable for use therein
PCT/CA1995/000271 WO1995031861A1 (en) 1994-05-12 1995-05-12 Fractional-n frequency synthesizer with a delta-sigma frequency discriminator

Publications (2)

Publication Number Publication Date
DE69506112D1 true DE69506112D1 (de) 1998-12-24
DE69506112T2 DE69506112T2 (de) 1999-07-22

Family

ID=4153584

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69506112T Expired - Lifetime DE69506112T2 (de) 1994-05-12 1995-05-12 Frequenzsynthetisierer mit gebrochenem teilverhältnis mit delta-sigma frequenzdiskriminator

Country Status (6)

Country Link
US (1) US5781044A (de)
EP (1) EP0772913B1 (de)
JP (1) JP3213754B2 (de)
CA (1) CA2123477A1 (de)
DE (1) DE69506112T2 (de)
WO (1) WO1995031861A1 (de)

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US6952138B2 (en) * 2001-09-12 2005-10-04 Telefonaktiebolaget Lm Ericsson (Publ) Generation of a phase locked loop output signal having reduced spurious spectral components
US6873213B2 (en) * 2001-10-02 2005-03-29 Nec Compound Semiconductor Devices, Ltd. Fractional N frequency synthesizer
US6710951B1 (en) 2001-10-31 2004-03-23 Western Digital Technologies, Inc. Phase locked loop employing a fractional frequency synthesizer as a variable oscillator
WO2004006437A1 (en) * 2002-07-03 2004-01-15 Telefonaktiebolaget Lm Ericsson (Publ.) Phase locked loop circuit, electronic device including a phase locked loop circuit and method for generating a periodic signal
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US7064617B2 (en) * 2003-05-02 2006-06-20 Silicon Laboratories Inc. Method and apparatus for temperature compensation
US7288998B2 (en) * 2003-05-02 2007-10-30 Silicon Laboratories Inc. Voltage controlled clock synthesizer
US7295077B2 (en) * 2003-05-02 2007-11-13 Silicon Laboratories Inc. Multi-frequency clock synthesizer
US7483569B2 (en) * 2003-05-29 2009-01-27 Carnegie Mellon University Reduced complexity correlation filters
US7119630B1 (en) 2003-09-25 2006-10-10 Cypress Semiconductor Corp. Frequency synthesizer having a more versatile and efficient fractional-N control circuit and method using vector values
US7126436B1 (en) 2003-09-25 2006-10-24 Cypress Semiconductor Corp. Frequency synthesizer having a more versatile and efficient fractional-N control circuit and method
DE102004006995B4 (de) * 2004-02-12 2007-05-31 Infineon Technologies Ag Digitaler Phasenregelkreis für Sub-µ-Technologien
DE102004009116B3 (de) * 2004-02-25 2005-04-28 Infineon Technologies Ag Delta-Sigma-Frequenzdiskriminator
US7068110B2 (en) * 2004-06-28 2006-06-27 Silicon Laboratories Inc. Phase error cancellation
KR100910086B1 (ko) * 2004-12-29 2009-07-30 텔레폰악티에볼라겟 엘엠 에릭슨(펍) 위상 고정 루프 회로, 위상 고정 루프 회로를 포함하는전자 장치 및 주기 신호를 발생시키는 방법
US7741918B1 (en) 2005-06-30 2010-06-22 Cypress Semiconductor Corporation System and method for an enhanced noise shaping for spread spectrum modulation
US7912109B1 (en) 2005-06-30 2011-03-22 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with first order accumulation for frequency profile generation
US7813411B1 (en) 2005-06-30 2010-10-12 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with high order accumulation for frequency profile generation
US7948327B1 (en) 2005-06-30 2011-05-24 Cypress Semiconductor Corporation Simplified phase lock loop control model system and method
US8072277B1 (en) 2005-06-30 2011-12-06 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer
US7932787B1 (en) 2005-06-30 2011-04-26 Cypress Semiconductor Corporation Phase lock loop control system and method
US7701297B1 (en) 2005-06-30 2010-04-20 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with improved frequency shape by adjusting the length of a standard curve used for spread spectrum modulation
US8174326B1 (en) 2005-06-30 2012-05-08 Cypress Semiconductor Corporation Phase lock loop control error selection system and method
US7961059B1 (en) 2005-06-30 2011-06-14 Cypress Semiconductor Corporation Phase lock loop control system and method with non-consecutive feedback divide values
US7636386B2 (en) * 2005-11-15 2009-12-22 Panasonic Corporation Method of continuously calibrating the gain for a multi-path angle modulator
US7856464B2 (en) * 2006-02-16 2010-12-21 Sigmatel, Inc. Decimation filter
US7680227B2 (en) * 2006-03-02 2010-03-16 Broadcom Corporation Method and system for filter calibration using fractional-N frequency synthesized signals
US7929929B2 (en) * 2007-09-25 2011-04-19 Motorola Solutions, Inc. Method and apparatus for spur reduction in a frequency synthesizer
US7538706B2 (en) * 2007-09-25 2009-05-26 Mediatek Inc. Mash modulator and frequency synthesizer using the same
KR101004791B1 (ko) 2008-12-31 2011-01-04 엘아이지넥스원 주식회사 주파수 합성기의 제어 신호 처리 장치 및 방법
WO2012148539A1 (en) 2011-02-25 2012-11-01 Maxim Integrated Products, Inc Capacitive touch sense architecture
US8860432B2 (en) 2011-02-25 2014-10-14 Maxim Integrated Products, Inc. Background noise measurement and frequency selection in touch panel sensor systems
US9086439B2 (en) 2011-02-25 2015-07-21 Maxim Integrated Products, Inc. Circuits, devices and methods having pipelined capacitance sensing
US8862648B2 (en) 2011-05-24 2014-10-14 Taiwan Semiconductor Manufacturing Company, Ltd. Fast filter calibration apparatus
JP6794784B2 (ja) * 2015-11-13 2020-12-02 セイコーエプソン株式会社 周波数シンセサイザー
US10291389B1 (en) * 2018-03-16 2019-05-14 Stmicroelectronics International N.V. Two-point modulator with matching gain calibration
CN109150177B (zh) * 2018-06-26 2022-07-19 杭州雄迈集成电路技术股份有限公司 一种带加抖机制的小数分频实现方法
CN112953515B (zh) * 2021-01-26 2024-05-10 北京金迈捷科技有限公司 一种分数锁相环

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US5258724A (en) * 1983-12-30 1993-11-02 Itt Corporation Frequency synthesizer
US4580107A (en) * 1984-06-06 1986-04-01 The United States Of America As Represented By The Secretary Of The Air Force Phase lock acquisition system having FLL for coarse tuning and PLL for fine tuning
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US4929918A (en) * 1989-06-07 1990-05-29 International Business Machines Corporation Setting and dynamically adjusting VCO free-running frequency at system level
DE69130046T2 (de) * 1990-10-22 1999-05-06 Nec Corp., Tokio/Tokyo Frequenzsynthesierer mit PLL, der einen Frequenzwechsel des Ausgangs mit hoher Geschwindigkeit ermöglicht
JP2861542B2 (ja) * 1991-10-25 1999-02-24 日本電気株式会社 位相ロックループシンセサイザ
US5563535A (en) * 1994-11-29 1996-10-08 Microunity Systems Engineering, Inc. Direct digital frequency synthesizer using sigma-delta techniques
US5552750A (en) * 1995-09-05 1996-09-03 Motorola, Inc. Method and apparatus for determining an instantaneous phase difference between two signals
US5630222A (en) * 1995-12-04 1997-05-13 Motorola Inc. Method and apparatus for generating multiple signals at multiple frequencies

Also Published As

Publication number Publication date
DE69506112T2 (de) 1999-07-22
WO1995031861A1 (en) 1995-11-23
JP3213754B2 (ja) 2001-10-02
EP0772913A1 (de) 1997-05-14
EP0772913B1 (de) 1998-11-18
JPH10500264A (ja) 1998-01-06
US5781044A (en) 1998-07-14
CA2123477A1 (en) 1995-11-13

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