TW338870B - Oscillator and phase-locked loop employing the same - Google Patents

Oscillator and phase-locked loop employing the same

Info

Publication number
TW338870B
TW338870B TW086100501A TW86100501A TW338870B TW 338870 B TW338870 B TW 338870B TW 086100501 A TW086100501 A TW 086100501A TW 86100501 A TW86100501 A TW 86100501A TW 338870 B TW338870 B TW 338870B
Authority
TW
Taiwan
Prior art keywords
amplifier
clock signal
input voltage
switch
capacitor filter
Prior art date
Application number
TW086100501A
Other languages
English (en)
Inventor
Nobori Inawa
Hiroji Sekawa
Kunihiko Goto
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of TW338870B publication Critical patent/TW338870B/zh

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
    • H03K4/023—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform by repetitive charge or discharge of a capacitor, analogue generators
    • 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
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of 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
    • H03L7/183—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 fixed numbers or the frequency divider dividing by a fixed number

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Synchronizing For Television (AREA)
  • Networks Using Active Elements (AREA)
TW086100501A 1996-06-28 1997-01-18 Oscillator and phase-locked loop employing the same TW338870B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16927296A JP3647147B2 (ja) 1996-06-28 1996-06-28 発振回路とそれを利用したｐｌｌ回路

Publications (1)

Publication Number Publication Date
TW338870B true TW338870B (en) 1998-08-21

Family

ID=15883439

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086100501A TW338870B (en) 1996-06-28 1997-01-18 Oscillator and phase-locked loop employing the same

Country Status (6)

Country Link
US (1) US5793257A (zh)
JP (1) JP3647147B2 (zh)
KR (1) KR100211342B1 (zh)
CN (2) CN1183740C (zh)
FR (2) FR2752114B1 (zh)
TW (1) TW338870B (zh)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE69808950T2 (de) * 1998-12-29 2003-12-24 Stmicroelectronics S.R.L., Agrate Brianza Mindestens eine spannungslineare Rampe mit geringer Steigung erzeugende integrierte Schaltung
EP1058385B1 (en) 1999-06-01 2005-06-01 Fujitsu Limited Comparator circuit
DE10046325C2 (de) * 2000-09-19 2002-08-29 Infineon Technologies Ag Elektrische Schaltung zur Erzeugung eines periodischen Signals
FR2840469A1 (fr) * 2002-05-28 2003-12-05 Koninkl Philips Electronics Nv Boucle a verrouillage de phase
US6998913B2 (en) * 2004-06-14 2006-02-14 Brookhaven Science Associates, Llc Method and apparatus for linear low-frequency feedback in monolithic low-noise charge amplifiers
WO2007001255A1 (en) * 2005-06-15 2007-01-04 Freescale Semiconductor, Inc. Integrated relaxation voltage controlled oscillator and method of voltage controlled oscillation
US8143957B2 (en) * 2006-01-11 2012-03-27 Qualcomm, Incorporated Current-mode gain-splitting dual-path VCO
DE102006017634A1 (de) * 2006-04-12 2007-10-18 Fev Motorentechnik Gmbh Anzeigeinstrument für ein Fahrzeug
JP4213172B2 (ja) * 2006-06-19 2009-01-21 日本電波工業株式会社 Ｐｌｌ発振回路
WO2009070940A1 (en) * 2007-12-06 2009-06-11 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Low-voltage oscillator with capacitor-ratio selectable duty cycle and single-input sub-threshold-conducting comparators to s-r latch
CN101458540B (zh) * 2007-12-14 2010-08-18 凌阳科技股份有限公司 一种带隙基准电压电路
TWI348826B (en) * 2008-01-28 2011-09-11 Prolific Technology Inc Filter and filtering method
JP5802095B2 (ja) * 2011-09-28 2015-10-28 新日本無線株式会社 電圧電流変換回路および電圧制御発振回路
US9054690B2 (en) * 2012-08-29 2015-06-09 Analog Devices Global Chopped oscillator
CN103812445B (zh) * 2012-11-06 2017-11-17 比亚迪股份有限公司 一种振荡器
US20160056763A1 (en) * 2014-08-20 2016-02-25 Qualcomm Incorporated Switched-capacitor rc oscillator
CN104485941A (zh) * 2014-12-23 2015-04-01 上海数明半导体有限公司 一种转换电路
EP3331803B1 (en) 2015-08-04 2020-06-03 Otis Elevator Company Elevator car door interlock
US11442494B2 (en) * 2020-06-08 2022-09-13 Analog Devices, Inc. Apparatus and methods for controlling a clock signal
US11316524B1 (en) * 2020-12-02 2022-04-26 Centaur Technology, Inc. Process independent spread spectrum clock generator utilizing a discrete-time capacitance multiplying loop filter
JP7532293B2 (ja) * 2021-03-15 2024-08-13 キオクシア株式会社 周波数電圧変換回路、半導体装置、及び、メモリシステム
CN113810893B (zh) * 2021-11-17 2022-03-18 北京紫光青藤微系统有限公司 用于时钟信号恢复的装置及方法、nfc芯片

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334619A (ja) * 1989-06-29 1991-02-14 Nec Corp Ｃｒ型発振回路
US4987373A (en) * 1989-09-01 1991-01-22 Chrontel, Inc. Monolithic phase-locked loop
US5384554A (en) * 1993-12-08 1995-01-24 Calcomp Inc. Voltage controlled oscillator circuit employing integrated circuit component ratios
US5663675A (en) * 1995-06-07 1997-09-02 American Microsystems, Inc. Multiple stage tracking filter using a self-calibrating RC oscillator circuit

Also Published As

Publication number Publication date
KR980006931A (ko) 1998-03-30
JP3647147B2 (ja) 2005-05-11
FR2752114A1 (fr) 1998-02-06
CN1183740C (zh) 2005-01-05
KR100211342B1 (ko) 1999-08-02
CN1395417A (zh) 2003-02-05
CN1170303A (zh) 1998-01-14
US5793257A (en) 1998-08-11
FR2759217A1 (fr) 1998-08-07
FR2752114B1 (fr) 2002-03-15
FR2759217B1 (fr) 2001-11-02
JPH1022791A (ja) 1998-01-23
CN1086892C (zh) 2002-06-26

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Legal Events

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