GB2336482A8 - Phase lock loop with differential charge pump - Google Patents
Phase lock loop with differential charge pumpInfo
- Publication number
- GB2336482A8 GB2336482A8 GB9807679A GB9807679A GB2336482A8 GB 2336482 A8 GB2336482 A8 GB 2336482A8 GB 9807679 A GB9807679 A GB 9807679A GB 9807679 A GB9807679 A GB 9807679A GB 2336482 A8 GB2336482 A8 GB 2336482A8
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge pump
- phase lock
- lock loop
- differential charge
- differential
- 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
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
- H03L7/0893—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 the up-down pulses controlling at least two source current generators or at least two sink current generators connected to different points in the loop
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9807679A GB2336482B (en) | 1998-04-14 | 1998-04-14 | Phase lock loop and differential charge pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9807679A GB2336482B (en) | 1998-04-14 | 1998-04-14 | Phase lock loop and differential charge pump |
Publications (4)
Publication Number | Publication Date |
---|---|
GB9807679D0 GB9807679D0 (en) | 1998-06-10 |
GB2336482A GB2336482A (en) | 1999-10-20 |
GB2336482A8 true GB2336482A8 (en) | 2000-03-01 |
GB2336482B GB2336482B (en) | 2000-06-07 |
Family
ID=10830148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9807679A Expired - Fee Related GB2336482B (en) | 1998-04-14 | 1998-04-14 | Phase lock loop and differential charge pump |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2336482B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1282234A1 (en) | 2001-07-31 | 2003-02-05 | Texas Instruments Incorporated | Loop filter architecture |
KR100630336B1 (en) | 2004-07-22 | 2006-09-29 | 삼성전자주식회사 | Fast locking charge pump phase locked loop and fast locking charge pumping method for the same |
US9806724B1 (en) * | 2016-09-22 | 2017-10-31 | Qualcomm Incorporated | Switched-capacitor circuits in a PLL |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU591496B2 (en) * | 1985-06-26 | 1989-12-07 | Data General Corporation | A charge pump for use in a phase-locked loop |
GB9405805D0 (en) * | 1994-03-24 | 1994-05-11 | Discovision Ass | Improved phase locked loop |
US5477193A (en) * | 1994-10-21 | 1995-12-19 | Cyrix Corporation | Current source loop filter with automatic gain control |
US5650754A (en) * | 1995-02-15 | 1997-07-22 | Synergy Microwave Corporation | Phase-loched loop circuits and voltage controlled oscillator circuits |
-
1998
- 1998-04-14 GB GB9807679A patent/GB2336482B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2336482B (en) | 2000-06-07 |
GB9807679D0 (en) | 1998-06-10 |
GB2336482A (en) | 1999-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20040414 |