GB2374217B - Low injection charge pump - Google Patents

Low injection charge pump

Info

Publication number
GB2374217B
GB2374217B GB0108117A GB0108117A GB2374217B GB 2374217 B GB2374217 B GB 2374217B GB 0108117 A GB0108117 A GB 0108117A GB 0108117 A GB0108117 A GB 0108117A GB 2374217 B GB2374217 B GB 2374217B
Authority
GB
United Kingdom
Prior art keywords
charge pump
low injection
injection charge
low
pump
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.)
Expired - Fee Related
Application number
GB0108117A
Other versions
GB2374217A (en
GB0108117D0 (en
Inventor
Andrew M Lever
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.)
Micron Technology Inc
Original Assignee
Micron Technology Inc
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 Micron Technology Inc filed Critical Micron Technology Inc
Priority to GB0108117A priority Critical patent/GB2374217B/en
Publication of GB0108117D0 publication Critical patent/GB0108117D0/en
Publication of GB2374217A publication Critical patent/GB2374217A/en
Application granted granted Critical
Publication of GB2374217B publication Critical patent/GB2374217B/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
    • H03L7/0895—Details of the current generators
    • H03L7/0896—Details of the current generators the current generators being controlled by differential up-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
    • H03L7/16—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
GB0108117A 2001-03-30 2001-03-30 Low injection charge pump Expired - Fee Related GB2374217B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0108117A GB2374217B (en) 2001-03-30 2001-03-30 Low injection charge pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0108117A GB2374217B (en) 2001-03-30 2001-03-30 Low injection charge pump

Publications (3)

Publication Number Publication Date
GB0108117D0 GB0108117D0 (en) 2001-05-23
GB2374217A GB2374217A (en) 2002-10-09
GB2374217B true GB2374217B (en) 2005-01-05

Family

ID=9911994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0108117A Expired - Fee Related GB2374217B (en) 2001-03-30 2001-03-30 Low injection charge pump

Country Status (1)

Country Link
GB (1) GB2374217B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532636A (en) * 1995-03-10 1996-07-02 Intel Corporation Source-switched charge pump circuit
US5592113A (en) * 1995-03-28 1997-01-07 National Semiconductor Corp. Gradual frequency changing circuit
EP0798862A1 (en) * 1996-03-28 1997-10-01 Nec Corporation Charge pump circuit for use in a phase locked loop
US5825640A (en) * 1997-06-30 1998-10-20 Motorola, Inc. Charge pump circuit and method
US6052015A (en) * 1997-08-27 2000-04-18 U.S. Philips Corporation Output stage for a low-current charge pump and demodulator integrating such a pump
EP1229656A2 (en) * 2001-02-02 2002-08-07 Broadcom Corporation Low power, charge injection compensated charge pump
US6535051B2 (en) * 2000-06-09 2003-03-18 Samsung Electronics Co., Ltd. Charge pump circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532636A (en) * 1995-03-10 1996-07-02 Intel Corporation Source-switched charge pump circuit
US5592113A (en) * 1995-03-28 1997-01-07 National Semiconductor Corp. Gradual frequency changing circuit
EP0798862A1 (en) * 1996-03-28 1997-10-01 Nec Corporation Charge pump circuit for use in a phase locked loop
US5825640A (en) * 1997-06-30 1998-10-20 Motorola, Inc. Charge pump circuit and method
US6052015A (en) * 1997-08-27 2000-04-18 U.S. Philips Corporation Output stage for a low-current charge pump and demodulator integrating such a pump
US6535051B2 (en) * 2000-06-09 2003-03-18 Samsung Electronics Co., Ltd. Charge pump circuit
EP1229656A2 (en) * 2001-02-02 2002-08-07 Broadcom Corporation Low power, charge injection compensated charge pump

Also Published As

Publication number Publication date
GB2374217A (en) 2002-10-09
GB0108117D0 (en) 2001-05-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140330