JPH08510890A - 位相同期ループのループ帯域幅を制御するための装置および方法 - Google Patents
位相同期ループのループ帯域幅を制御するための装置および方法Info
- Publication number
- JPH08510890A JPH08510890A JP7516771A JP51677195A JPH08510890A JP H08510890 A JPH08510890 A JP H08510890A JP 7516771 A JP7516771 A JP 7516771A JP 51677195 A JP51677195 A JP 51677195A JP H08510890 A JPH08510890 A JP H08510890A
- Authority
- JP
- Japan
- Prior art keywords
- frequency signal
- pll
- phase
- signal
- frequency
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 30
- 230000008859 change Effects 0.000 claims abstract description 28
- 230000007704 transition Effects 0.000 claims abstract description 9
- 230000004044 response Effects 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 9
- 230000011664 signaling Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 8
- 230000001413 cellular effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 229920000729 poly(L-lysine) polymer Polymers 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 101100082028 Arabidopsis thaliana PLL2 gene Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- H03L7/183—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
-
- 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
- H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
- H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S331/00—Oscillators
- Y10S331/02—Phase locked loop having lock indicating or detecting means
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.基準周波数信号に応じて出力周波数信号を発生する位相同期ループ(PL L)における該PLLのループ帯域幅を制御する方法であって、前記出力周波数 信号および前記基準周波数信号は各々周波数および位相によって特徴づけられ、 位相誤差は前記基準周波数信号の位相と前記出力周波数信号の位相との間の差を 示すものであり、前記PLLは第1のループ帯域幅状態で動作して前記出力周波 数信号を実質的に前記基準周波数信号を示す周波数に維持し、かつ第2のループ 帯域幅状態で動作して前記出力周波数信号を前記基準周波数信号を示す前記周波 数に収斂させ、前記PLLのループ帯域幅を制御する方法は、 前記位相誤差が望ましいものであるか或いは望ましくないものであるかを識別 する段階、 前記位相誤差が望ましいものと識別された場合に、 第1の所定の期間にわたり前記位相誤差の変化レートを決定し前記基準周 波数信号の周波数と前記出力周波数信号の周波数との間の周波数誤差の指示を提 供する段階、そして 前記周波数誤差の指示に応じて前記PLLの第1および第2のループ帯域 幅状態の間の遷移を制御する段階、そして 前記位相誤差が望ましくないものと識別された場合に、 前記PLLを前記第2のループ帯域幅状態で動作させる段階、 を具備するPLLのループ帯域幅を制御する方法。 2.前記位相誤差を望ましいものであるか或いは望ましくないものであるかを 識別する段階はさらに、 前記出力周波数信号の位相の指示に対する前記基準周波数信号の位相の指示の 、第2の所定の期間に関する近接度を検出する段階、 を具備する、請求項1に記載の方法。 3.前記第2の所定の期間は前記出力周波数信号の周波数の逆数の関数である 、請求項2に記載の方法。 4.時間にわたり前記位相誤差の変化レートを決定する段階はさらに、 前記位相誤差が望ましいものであると識別した段階の引き続く発生をカウント する段階、 を具備する、請求項1に記載の方法。 5.前記第1の所定の期間は前記基準周波数信号または前記出力周波数信号の 周波数の逆数の関数である、請求項1に記載の方法。 6.前記制御する段階はさらに、 前記周波数誤差の指示に応じて前記PLLの第1および第2のループ帯域幅状 態の間で交代的に選択する段階、 を具備する、請求項1に記載の方法。 7.前記制御する段階はさらに、 前記周波数誤差の指示に応じて前記PLLの前記第2のループ帯域幅状態のル ープ帯域幅値を変化させる段階、 を具備する、請求項1に記載の方法。 8.基準周波数信号に応じて出力周波数信号を発生する位相同期ループ(PL L)における該PLLのループ帯域幅を制御する装置であって、前記出力周波数 信号および前記基準周波数信号は各々周波数および位相によって特徴づけられ、 位相誤差は前記基準周波数信号の位相と前記出力周波数信号の位相との間の差を 示すものであり、前記PLLは第1のループ帯域幅状態で動作して前記周波数信 号を実質的に前記基準周波数信号を示す周波数に維持し、かつ第2のループ帯域 幅状態で動作して前記出力周波数信号を前記基準周波数信号を示す前記周波数に 収斂させ、前記PLLのループ帯域幅を制御する装置は、 前記位相誤差が望ましいものであるか或いは望ましくないものであるかを識別 するよう動作する位相誤差識別器、 前記位相誤差が望ましいものと識別された場合に、第1の所定の期間にわたり 位相誤差の変化レートを決定して前記基準周波数信号の周波数と前記出力周波数 信号の周波数との間の周波数誤差の指示を提供するよう動作する変化レート決定 器、そして 前記位相誤差が望ましいものとして識別された場合に、前記周波数誤差の指示 に応じて前記PLLの第1および第2のループ帯域幅状態の間の遷移を制御する よう動作し、 かつ、前記位相誤差が望ましくないものと識別された場合に、前記PLLを第2 のループ帯域幅状態で動作させるよう動作するループ帯域幅調整器、 を具備するPLLのループ帯域幅を制御する装置。 9.前記位相誤差識別器はさらに、 前記出力周波数信号の位相の指示に対する前記基準周波数信号の位相の指示の 、第2の所定の期間に関する、近接度を決定するよう動作するエッジ近接検出器 、 を具備する、請求項8に記載の装置。 10.前記時間にわたり位相誤差の変化レートを決定するよう動作する変化レ ート決定器はさらに、 望ましいものと識別された位相誤差の引き続く発生をカウントするよう動作す るカウンタ、 を具備する、請求項8に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/145,841 US5703539A (en) | 1993-12-17 | 1993-12-17 | Apparatus and method for controlling the loop bandwidth of a phase locked loop |
US08/145,841 | 1993-12-17 | ||
PCT/US1994/013339 WO1995017043A1 (en) | 1993-12-17 | 1994-11-21 | Apparatus and method for controlling the loop bandwidth of a phase locked loop |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08510890A true JPH08510890A (ja) | 1996-11-12 |
JP3297052B2 JP3297052B2 (ja) | 2002-07-02 |
Family
ID=22514794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51677195A Expired - Lifetime JP3297052B2 (ja) | 1993-12-17 | 1994-11-21 | 位相同期ループのループ帯域幅を制御するための装置および方法 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5703539A (ja) |
JP (1) | JP3297052B2 (ja) |
KR (1) | KR100197360B1 (ja) |
CN (1) | CN1035584C (ja) |
AU (1) | AU1257795A (ja) |
BR (1) | BR9405762A (ja) |
CA (1) | CA2154489C (ja) |
DE (2) | DE4499899C2 (ja) |
FR (1) | FR2714241B1 (ja) |
GB (1) | GB2290186B (ja) |
SE (1) | SE9502844L (ja) |
SG (1) | SG43792A1 (ja) |
WO (1) | WO1995017043A1 (ja) |
Cited By (1)
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JP5624552B2 (ja) * | 2009-10-23 | 2014-11-12 | アルフレッサファーマ株式会社 | 骨締結ケーブル用緊縛装置 |
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DE59702398D1 (de) * | 1996-07-22 | 2000-11-02 | Siemens Ag | Phasenregelkreis mit Technologiekompensation |
US5867536A (en) * | 1997-02-11 | 1999-02-02 | Hittite Microwave Corporation | Digital synchronization of broadcast frequency |
US6047170A (en) * | 1997-07-29 | 2000-04-04 | Honeywell Inc. | Automatic squelch control for narrow band AM radio |
US6049255A (en) * | 1998-06-05 | 2000-04-11 | Telefonaktiebolaget Lm Ericsson | Tuning the bandwidth of a phase-locked loop |
US6229991B1 (en) * | 1998-10-13 | 2001-05-08 | Motorola, Inc. | Method of and apparatus for automatic frequency control range extension |
US6961314B1 (en) * | 1998-10-30 | 2005-11-01 | Broadcom Corporation | Burst receiver for cable modem system |
US6760316B1 (en) * | 1998-10-30 | 2004-07-06 | Broadcom Corporation | Method and apparatus for the synchronization of multiple cable modem termination system devices |
US7103065B1 (en) * | 1998-10-30 | 2006-09-05 | Broadcom Corporation | Data packet fragmentation in a cable modem system |
EP1125398B1 (en) * | 1998-10-30 | 2008-10-22 | Broadcom Corporation | Cable modem system |
US6327319B1 (en) | 1998-11-06 | 2001-12-04 | Motorola, Inc. | Phase detector with frequency steering |
IT1303868B1 (it) * | 1998-11-25 | 2001-03-01 | Italtel Spa | Metodo e circuito per trasferire la modulazione angolare di un segnalea frequenza intermedia ad una portante a microonde utilizzando un pll |
US6225891B1 (en) | 2000-01-07 | 2001-05-01 | Hittite Microwave Corp. | Wide-angle, static and positional anticipatory object detection system |
US6459253B1 (en) * | 2000-09-05 | 2002-10-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Bandwidth calibration for frequency locked loop |
US7304545B1 (en) | 2000-11-30 | 2007-12-04 | Marvell International Ltd. | High latency timing circuit |
US6732286B1 (en) | 2000-11-30 | 2004-05-04 | Marvell International, Ltd. | High latency timing circuit |
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US7042972B2 (en) * | 2003-04-09 | 2006-05-09 | Qualcomm Inc | Compact, low-power low-jitter digital phase-locked loop |
GB2409383B (en) * | 2003-12-17 | 2006-06-21 | Wolfson Ltd | Clock synchroniser |
US20060285618A1 (en) * | 2005-06-21 | 2006-12-21 | Ehud Shoor | Adaptive phase recovery |
US7405633B2 (en) * | 2005-07-18 | 2008-07-29 | Tellabs Reston, Inc. | Methods and apparatus for loop bandwidth control for a phase-locked loop |
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US7391271B2 (en) | 2006-06-22 | 2008-06-24 | International Business Machines Corporation | Adjustment of PLL bandwidth for jitter control using feedback circuitry |
FR2941113B1 (fr) * | 2009-01-15 | 2011-03-11 | St Microelectronics Grenoble 2 | Procede de detection du verrouillage d'une boucle a verrouillage de phase et dispositif associe |
WO2010113377A1 (ja) * | 2009-04-01 | 2010-10-07 | パナソニック株式会社 | デジタル周波数/位相ロックドループ |
US8433027B2 (en) * | 2009-10-08 | 2013-04-30 | Dialog Semiconductor Gmbh | Digital controller for automatic rate detection and tracking of audio interface clocks |
CN103138753B (zh) * | 2011-11-23 | 2016-08-10 | 联想(北京)有限公司 | 调节装置、锁相环、电子设备、带宽调整方法及装置 |
CN103312321A (zh) * | 2012-03-09 | 2013-09-18 | 联想(北京)有限公司 | 带宽调整方法、调节装置、锁相环电路和电子设备 |
US9473157B2 (en) * | 2014-07-24 | 2016-10-18 | Mediatek Inc. | Frequency synthesizer with injection pulling/pushing suppression/mitigation and related frequency synthesizing method thereof |
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CN108616274A (zh) * | 2016-12-09 | 2018-10-02 | 晨星半导体股份有限公司 | 锁相回路单元的带宽调整方法与相关的带宽调整单元及相位回复模块 |
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1993
- 1993-12-17 US US08/145,841 patent/US5703539A/en not_active Expired - Lifetime
-
1994
- 1994-11-21 SG SG1996000927A patent/SG43792A1/en unknown
- 1994-11-21 CN CN94191188A patent/CN1035584C/zh not_active Expired - Fee Related
- 1994-11-21 WO PCT/US1994/013339 patent/WO1995017043A1/en active Application Filing
- 1994-11-21 CA CA002154489A patent/CA2154489C/en not_active Expired - Fee Related
- 1994-11-21 AU AU12577/95A patent/AU1257795A/en not_active Abandoned
- 1994-11-21 BR BR9405762A patent/BR9405762A/pt not_active IP Right Cessation
- 1994-11-21 JP JP51677195A patent/JP3297052B2/ja not_active Expired - Lifetime
- 1994-11-21 GB GB9516177A patent/GB2290186B/en not_active Expired - Fee Related
- 1994-11-21 DE DE4499899A patent/DE4499899C2/de not_active Expired - Lifetime
- 1994-11-21 DE DE4499899T patent/DE4499899T1/de active Pending
- 1994-11-21 KR KR1019950703387A patent/KR100197360B1/ko not_active IP Right Cessation
- 1994-12-06 FR FR9414628A patent/FR2714241B1/fr not_active Expired - Lifetime
-
1995
- 1995-08-16 SE SE9502844A patent/SE9502844L/xx not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5624552B2 (ja) * | 2009-10-23 | 2014-11-12 | アルフレッサファーマ株式会社 | 骨締結ケーブル用緊縛装置 |
Also Published As
Publication number | Publication date |
---|---|
US5703539A (en) | 1997-12-30 |
GB2290186A (en) | 1995-12-13 |
FR2714241A1 (fr) | 1995-06-23 |
WO1995017043A1 (en) | 1995-06-22 |
DE4499899C2 (de) | 2000-11-02 |
JP3297052B2 (ja) | 2002-07-02 |
GB2290186B (en) | 1998-08-05 |
SE9502844L (sv) | 1995-10-17 |
GB9516177D0 (en) | 1995-10-11 |
SE9502844D0 (sv) | 1995-08-16 |
CA2154489A1 (en) | 1995-06-22 |
KR100197360B1 (ko) | 1999-06-15 |
FR2714241B1 (fr) | 1996-07-19 |
BR9405762A (pt) | 1995-11-28 |
CN1035584C (zh) | 1997-08-06 |
CA2154489C (en) | 1999-08-10 |
AU1257795A (en) | 1995-07-03 |
DE4499899T1 (de) | 1995-12-21 |
CN1117775A (zh) | 1996-02-28 |
SG43792A1 (en) | 1997-11-14 |
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