TWI347751B - Adjustable digital lock detector - Google Patents
Adjustable digital lock detectorInfo
- Publication number
- TWI347751B TWI347751B TW097110568A TW97110568A TWI347751B TW I347751 B TWI347751 B TW I347751B TW 097110568 A TW097110568 A TW 097110568A TW 97110568 A TW97110568 A TW 97110568A TW I347751 B TWI347751 B TW I347751B
- Authority
- TW
- Taiwan
- Prior art keywords
- lock detector
- digital lock
- adjustable digital
- adjustable
- detector
- Prior art date
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
- H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/861,260 US7595672B2 (en) | 2007-09-25 | 2007-09-25 | Adjustable digital lock detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200915727A TW200915727A (en) | 2009-04-01 |
| TWI347751B true TWI347751B (en) | 2011-08-21 |
Family
ID=40470976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097110568A TWI347751B (en) | 2007-09-25 | 2008-03-25 | Adjustable digital lock detector |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7595672B2 (zh) |
| CN (1) | CN101399541B (zh) |
| TW (1) | TWI347751B (zh) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100826975B1 (ko) * | 2006-06-30 | 2008-05-02 | 주식회사 하이닉스반도체 | 클럭 생성 회로 및 클럭 생성 방법 |
| US7696798B2 (en) * | 2008-02-08 | 2010-04-13 | Sun Microsystems, Inc. | Method and apparatus to generate system clock synchronization pulses using a PLL lock detect signal |
| US8076979B2 (en) * | 2008-04-04 | 2011-12-13 | Freescale Semiconductor, Inc. | Lock detection circuit for phase locked loop |
| CN101656536B (zh) * | 2008-08-18 | 2012-06-20 | 中芯国际集成电路制造(上海)有限公司 | 锁相环及其锁定检测装置和方法 |
| US8331517B2 (en) * | 2010-06-29 | 2012-12-11 | Realtek Semiconductor Corp. | Serial link receiver and method thereof |
| CN102291130B (zh) * | 2011-04-02 | 2013-02-06 | 长沙景嘉微电子股份有限公司 | 一种锁定精度和锁定频率均可编程的锁定检测电路 |
| CN103746689B (zh) * | 2013-12-19 | 2016-07-06 | 北京时代民芯科技有限公司 | 一种用于pll频率综合器中的锁定检测器 |
| CN107154800B (zh) * | 2016-03-03 | 2020-02-28 | 中兴通讯股份有限公司 | 一种锁相环失锁的检测系统及检测方法 |
| US10411716B2 (en) * | 2016-06-06 | 2019-09-10 | Richwave Technology Corp. | Subsampling motion detector for detecting motion of object under measurement |
| US10516402B2 (en) * | 2018-03-09 | 2019-12-24 | Texas Instruments Incorporated | Corrupted clock detection circuit for a phase-locked loop |
| US10505553B1 (en) | 2018-11-29 | 2019-12-10 | International Business Machines Corporation | Detecting the health of a phase loop lock |
| CN110471273B (zh) * | 2019-09-17 | 2020-09-08 | 北京大学 | 一种用于自动化闭环控制系统的跟踪锁定方法 |
| TWI700894B (zh) * | 2019-11-27 | 2020-08-01 | 國立中山大學 | 全數位延遲鎖相迴路及其自動判斷頻率切換器 |
| PL450729A1 (pl) * | 2024-12-27 | 2026-01-19 | Politechnika Warszawska | Arbiter i sposób regulacji pracą tego arbitra |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6760394B1 (en) * | 1999-08-11 | 2004-07-06 | Broadcom Corporation | CMOS lock detect with double protection |
| US6879195B2 (en) * | 2003-07-17 | 2005-04-12 | Rambus, Inc. | PLL lock detection circuit using edge detection |
| US6998889B2 (en) * | 2003-08-11 | 2006-02-14 | Rambus Inc. | Circuit, apparatus and method for obtaining a lock state value |
-
2007
- 2007-09-25 US US11/861,260 patent/US7595672B2/en active Active
-
2008
- 2008-03-25 TW TW097110568A patent/TWI347751B/zh active
- 2008-03-31 CN CN2008100884702A patent/CN101399541B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101399541A (zh) | 2009-04-01 |
| US7595672B2 (en) | 2009-09-29 |
| CN101399541B (zh) | 2010-12-01 |
| TW200915727A (en) | 2009-04-01 |
| US20090079479A1 (en) | 2009-03-26 |
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