GB2336482A8 - Phase lock loop with differential charge pump - Google Patents

Phase lock loop with differential charge pump

Info

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
Application number
GB9807679A
Other versions
GB2336482B (en
GB9807679D0 (en
GB2336482A (en
Inventor
Tal Mor
Shirazi Gadi
Fayneh Eyal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Israel Ltd
Original Assignee
Motorola Israel Ltd
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 Motorola Israel Ltd filed Critical Motorola Israel Ltd
Priority to GB9807679A priority Critical patent/GB2336482B/en
Publication of GB9807679D0 publication Critical patent/GB9807679D0/en
Publication of GB2336482A publication Critical patent/GB2336482A/en
Publication of GB2336482A8 publication Critical patent/GB2336482A8/en
Application granted granted Critical
Publication of GB2336482B publication Critical patent/GB2336482B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
GB9807679A 1998-04-14 1998-04-14 Phase lock loop and differential charge pump Expired - Fee Related GB2336482B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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