TW200625823A - Fast locking method and apparatus for frequency - Google Patents
Fast locking method and apparatus for frequencyInfo
- Publication number
- TW200625823A TW200625823A TW094144675A TW94144675A TW200625823A TW 200625823 A TW200625823 A TW 200625823A TW 094144675 A TW094144675 A TW 094144675A TW 94144675 A TW94144675 A TW 94144675A TW 200625823 A TW200625823 A TW 200625823A
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- width
- pulse
- frequency
- generates
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 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
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
- H03D13/003—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means
- H03D13/004—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means the logic means delivering pulses at more than one terminal, e.g. up and down pulses
-
- 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
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/027,966 US7129789B2 (en) | 2005-01-03 | 2005-01-03 | Fast locking method and apparatus for frequency synthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200625823A true TW200625823A (en) | 2006-07-16 |
TWI304295B TWI304295B (en) | 2008-12-11 |
Family
ID=36639673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094144675A TWI304295B (en) | 2005-01-03 | 2005-12-16 | Fast locking method and apparatus for frequency |
Country Status (3)
Country | Link |
---|---|
US (1) | US7129789B2 (zh) |
CN (1) | CN100426674C (zh) |
TW (1) | TWI304295B (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7405601B2 (en) * | 2004-05-03 | 2008-07-29 | Silicon Laboratories Inc. | High-speed divider with pulse-width control |
US7230461B1 (en) * | 2004-06-29 | 2007-06-12 | Marvell International, Ltd. | Retiming circuits for phase-locked loops |
TWI283969B (en) * | 2005-11-07 | 2007-07-11 | Sunplus Technology Co Ltd | Frequency detecting and converting apparatus |
US7821301B2 (en) * | 2006-01-11 | 2010-10-26 | International Business Machines Corporation | Method and apparatus for measuring and compensating for static phase error in phase locked loops |
US7378880B2 (en) * | 2006-05-02 | 2008-05-27 | Faraday Technology Corp. | Frequency comparator |
CN101119110B (zh) * | 2006-07-31 | 2011-04-20 | 智原科技股份有限公司 | 频率比较器 |
DE102007001934B3 (de) * | 2007-01-12 | 2008-07-31 | Texas Instruments Deutschland Gmbh | Phasenregelkreis |
US7551009B2 (en) * | 2007-02-28 | 2009-06-23 | Silicon Laboratories Inc. | High-speed divider with reduced power consumption |
KR100935594B1 (ko) * | 2008-02-14 | 2010-01-07 | 주식회사 하이닉스반도체 | 위상 동기 장치 |
TWI380604B (en) | 2009-05-05 | 2012-12-21 | Univ Nat Sun Yat Sen | Rf sensing circuit with a voltage-controlled oscillator |
TWI427989B (zh) * | 2010-07-08 | 2014-02-21 | Realtek Semiconductor Corp | 無線通訊系統及其相關方法 |
CN102355267B (zh) * | 2011-05-30 | 2013-09-18 | 山东寿光科迪电子有限公司 | 一种基于游标延迟链的时间数字转换方法及其电路 |
TWI473432B (zh) * | 2012-08-28 | 2015-02-11 | Novatek Microelectronics Corp | 多相位時脈除頻器 |
CN103297054B (zh) * | 2013-04-27 | 2016-10-12 | 江西三川水表股份有限公司 | 环形时间数字转换器及其方法 |
KR20230040221A (ko) * | 2021-09-15 | 2023-03-22 | 에스케이하이닉스 주식회사 | 쉬프트레지스터 및 쉬프트레지스터를 포함하는 전자장치 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5495205A (en) * | 1995-01-06 | 1996-02-27 | Robert D. Atkins | Digital controlled oscillator and method thereof |
JP3072833B2 (ja) * | 1997-05-23 | 2000-08-07 | 日本電気株式会社 | ディジタルpll回路 |
US5821817A (en) * | 1997-06-16 | 1998-10-13 | The United States Of America As Represented By The Secretary Of The Army | Fast-locking low-noise phase-locked loop |
US6150891A (en) | 1998-05-29 | 2000-11-21 | Silicon Laboratories, Inc. | PLL synthesizer having phase shifted control signals |
JP3299219B2 (ja) * | 1999-05-07 | 2002-07-08 | 日本電気株式会社 | ディジタルpll回路 |
JP2002290233A (ja) * | 2001-03-27 | 2002-10-04 | Fujitsu Ltd | Pll回路のモード切替方法及びpll回路のモード制御回路 |
-
2005
- 2005-01-03 US US11/027,966 patent/US7129789B2/en active Active
- 2005-12-16 TW TW094144675A patent/TWI304295B/zh not_active IP Right Cessation
- 2005-12-30 CN CNB2005100971336A patent/CN100426674C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
TWI304295B (en) | 2008-12-11 |
CN1801624A (zh) | 2006-07-12 |
US7129789B2 (en) | 2006-10-31 |
CN100426674C (zh) | 2008-10-15 |
US20060145732A1 (en) | 2006-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |