TW200723702A - Switch-capacitor loop filter for phase lock loops - Google Patents

Switch-capacitor loop filter for phase lock loops

Info

Publication number
TW200723702A
TW200723702A TW095144208A TW95144208A TW200723702A TW 200723702 A TW200723702 A TW 200723702A TW 095144208 A TW095144208 A TW 095144208A TW 95144208 A TW95144208 A TW 95144208A TW 200723702 A TW200723702 A TW 200723702A
Authority
TW
Taiwan
Prior art keywords
switch
capacitor
phase
loop filter
sampling
Prior art date
Application number
TW095144208A
Other languages
English (en)
Other versions
TWI337809B (en
Inventor
Chia-Liang Lin
Ger-Chih Chou
Chi-Kung Kuan
Original Assignee
Realtek Semiconductor Corp
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 Realtek Semiconductor Corp filed Critical Realtek Semiconductor Corp
Publication of TW200723702A publication Critical patent/TW200723702A/zh
Application granted granted Critical
Publication of TWI337809B publication Critical patent/TWI337809B/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
    • 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
    • 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
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics 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)
  • Filters That Use Time-Delay Elements (AREA)
TW095144208A 2005-12-01 2006-11-29 Switch-capacitor loop filter for phase lock loops TWI337809B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74111905P 2005-12-01 2005-12-01

Publications (2)

Publication Number Publication Date
TW200723702A true TW200723702A (en) 2007-06-16
TWI337809B TWI337809B (en) 2011-02-21

Family

ID=38214517

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095144208A TWI337809B (en) 2005-12-01 2006-11-29 Switch-capacitor loop filter for phase lock loops

Country Status (3)

Country Link
US (1) US7629854B2 (zh)
CN (1) CN1992527B (zh)
TW (1) TWI337809B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI447569B (zh) * 2010-03-17 2014-08-01 Hon Hai Prec Ind Co Ltd 供電電路
TWI589122B (zh) * 2012-07-27 2017-06-21 線性科技股份有限公司 相位雜訊耐受取樣

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US7634038B1 (en) * 2006-01-24 2009-12-15 Cadence Design Systems, Inc. Wideband phase-locked loop with adaptive frequency response that tracks a reference
JP2008035451A (ja) * 2006-08-01 2008-02-14 Niigata Seimitsu Kk 周波数シンセサイザおよびこれに用いるループフィルタ
US7916824B2 (en) * 2006-08-18 2011-03-29 Texas Instruments Incorporated Loop bandwidth enhancement technique for a digital PLL and a HF divider that enables this technique
CN101841330B (zh) * 2009-03-20 2012-09-05 南亚科技股份有限公司 相位检测模块以及相关的相位检测方法
CN102193607B (zh) * 2010-03-11 2013-12-11 鸿富锦精密工业（深圳）有限公司 供电电路
US8599985B2 (en) * 2011-04-05 2013-12-03 Intel IP Corporation System and method for reducing lock acquisition time of a phase-locked loop
TWI465046B (zh) * 2011-04-07 2014-12-11 Etron Technology Inc 延遲鎖相迴路、迴路濾波器及延遲鎖相迴路的鎖相的方法
US9197225B2 (en) 2011-10-05 2015-11-24 International Business Machines Corporation Control voltage mirror circuit
JP5811937B2 (ja) * 2012-04-16 2015-11-11 株式会社ソシオネクスト Ｐｌｌ回路
JP5776657B2 (ja) * 2012-09-18 2015-09-09 株式会社デンソー 受信回路
US9130575B2 (en) * 2013-03-14 2015-09-08 Samsung Electronics Co., Ltd. Communication system with charge pump mechanism and method of operation thereof
US9024684B2 (en) 2013-03-15 2015-05-05 Qualcomm Incorporated Area-efficient PLL with a low-noise low-power loop filter
EP2976851B1 (en) * 2013-03-21 2019-11-13 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for implementing clock holdover
TWI512714B (zh) * 2013-08-19 2015-12-11 Sitronix Technology Corp A power supply circuit of a display device
WO2016015673A1 (en) * 2014-08-01 2016-02-04 Mediatek Inc. Switched-capacitor loop filter
JP6503671B2 (ja) * 2014-09-26 2019-04-24 セイコーエプソン株式会社 Ｐｌｌ回路、集積回路装置、電子機器及び移動体
US9906227B2 (en) * 2015-08-13 2018-02-27 Maxlinear, Inc. Method and system for a sampled loop filter in a phase locked loop (PLL)
CN107809240A (zh) * 2016-09-08 2018-03-16 中芯国际集成电路制造(上海)有限公司 用于锁相环电路的环路滤波器及锁相环电路
US9806724B1 (en) 2016-09-22 2017-10-31 Qualcomm Incorporated Switched-capacitor circuits in a PLL
TWI641229B (zh) * 2018-02-26 2018-11-11 國立交通大學 電荷泵電路及鎖相迴路系統
JP7336270B2 (ja) * 2019-06-12 2023-08-31 ローム株式会社 電源回路および集積回路
US11431345B2 (en) * 2019-12-03 2022-08-30 Cirrus Logic, Inc. Data conversion

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US4329599A (en) * 1980-05-29 1982-05-11 American Microsystems, Inc. Switched-capacitor cosine filter
US4344050A (en) * 1980-09-22 1982-08-10 American Microsystems, Inc. Dual channel digitally switched capacitor filter
US4375625A (en) * 1981-05-21 1983-03-01 Gte Automatic Electric Laboratories, Inc. Switched-capacitor source resistor simulation circuit
JPS5839109A (ja) * 1981-09-01 1983-03-07 Toshiba Corp 低域通過フィルタ
US4446438A (en) * 1981-10-26 1984-05-01 Gte Automatic Electric Incorporated Switched capacitor n-path filter
GB2260833A (en) * 1991-10-22 1993-04-28 Burr Brown Corp Reference voltage circuit allowing fast power-up
JP3488180B2 (ja) * 2000-05-30 2004-01-19 松下電器産業株式会社 周波数シンセサイザ
CN1943113B (zh) * 2004-03-26 2010-09-01 松下电器产业株式会社 开关电容滤波器和反馈系统
US7019571B2 (en) * 2004-03-31 2006-03-28 Silicon Laboratories, Inc. Frequency synthesizer for a wireless communication system
EP1583221A1 (en) * 2004-03-31 2005-10-05 NEC Compound Semiconductor Devices, Ltd. PLL frequency synthesizer circuit and frequency tuning method thereof
CN1310430C (zh) * 2004-07-01 2007-04-11 威盛电子股份有限公司 锁相环电路
US7145400B2 (en) * 2004-12-02 2006-12-05 Ceva Services Limited Phase locked loop with a switch capacitor resistor in the loop filter
JP2006295343A (ja) * 2005-04-06 2006-10-26 Matsushita Electric Ind Co Ltd スイッチトキャパシタフィルタ及びフィードバックシステム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI447569B (zh) * 2010-03-17 2014-08-01 Hon Hai Prec Ind Co Ltd 供電電路
TWI589122B (zh) * 2012-07-27 2017-06-21 線性科技股份有限公司 相位雜訊耐受取樣

Also Published As

Publication number Publication date
TWI337809B (en) 2011-02-21
CN1992527A (zh) 2007-07-04
US7629854B2 (en) 2009-12-08
CN1992527B (zh) 2011-06-01
US20070126514A1 (en) 2007-06-07

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