ATE544238T1 - Kristalloszillator-taktschaltung - Google Patents

Kristalloszillator-taktschaltung

Info

Publication number
ATE544238T1
ATE544238T1 AT09728362T AT09728362T ATE544238T1 AT E544238 T1 ATE544238 T1 AT E544238T1 AT 09728362 T AT09728362 T AT 09728362T AT 09728362 T AT09728362 T AT 09728362T AT E544238 T1 ATE544238 T1 AT E544238T1
Authority
AT
Austria
Prior art keywords
crystal oscillator
clock signal
generated clock
clock circuit
oscillator clock
Prior art date
Application number
AT09728362T
Other languages
English (en)
Inventor
Sebastian Loeda
Original Assignee
Elonics 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 Elonics Ltd filed Critical Elonics Ltd
Application granted granted Critical
Publication of ATE544238T1 publication Critical patent/ATE544238T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/02—Details
    • H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
AT09728362T 2008-04-04 2009-03-25 Kristalloszillator-taktschaltung ATE544238T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0806138.4A GB0806138D0 (en) 2008-04-04 2008-04-04 Crystal oscillator clock circuits
PCT/GB2009/050283 WO2009122198A1 (en) 2008-04-04 2009-03-25 Crystal oscillator clock circuit

Publications (1)

Publication Number Publication Date
ATE544238T1 true ATE544238T1 (de) 2012-02-15

Family

ID=39433127

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09728362T ATE544238T1 (de) 2008-04-04 2009-03-25 Kristalloszillator-taktschaltung

Country Status (5)

Country Link
US (1) US8324978B2 (de)
EP (1) EP2272167B1 (de)
AT (1) ATE544238T1 (de)
GB (1) GB0806138D0 (de)
WO (1) WO2009122198A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8461934B1 (en) * 2010-10-26 2013-06-11 Marvell International Ltd. External oscillator detector
JP2015159369A (ja) * 2014-02-21 2015-09-03 アルプス電気株式会社 発振回路及びこれを有する半導体集積回路装置
US9614509B1 (en) * 2016-06-13 2017-04-04 Semiconductor Components Industries, Llc Internal/external clock selection circuit and method of operation
US10367462B2 (en) 2017-06-30 2019-07-30 Silicon Laboratories Inc. Crystal amplifier with additional high gain amplifier core to optimize startup operation
US10454420B2 (en) * 2017-06-30 2019-10-22 Silicon Laboratories Inc. Crystal driver circuit configurable for daisy chaining
US10574185B2 (en) 2017-06-30 2020-02-25 Silicon Laboratories Inc. Crystal driver circuit with core amplifier having unbalanced tune capacitors
US10536115B2 (en) 2017-06-30 2020-01-14 Silicon Laboratories Inc. Crystal driver circuit with external oscillation signal amplitude control
US10601369B2 (en) 2018-07-11 2020-03-24 Silicon Laboratories Inc. Crystal oscillator startup time optimization
US10491157B1 (en) 2018-07-11 2019-11-26 Silicon Laboratories Inc. Crystal oscillator adaptive startup energy minimization
CN113791556A (zh) * 2021-08-31 2021-12-14 上海卫星工程研究所 应答机内外时钟自主检测和切换的方法及系统
CN118795504B (zh) * 2024-09-14 2025-02-28 长沙金维集成电路股份有限公司 北斗三号时钟检测切换电路、方法和接收机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358742A (en) 1980-03-07 1982-11-09 The Singer Company Transimpedance oscillator having high gain amplifier
JPS59100604A (ja) 1982-11-30 1984-06-09 Sony Corp 発振器
US5453719A (en) * 1993-12-17 1995-09-26 Nec Corporation Oscillator circuit generating oscillation signal responsive to one of resonant element and external clock signal
JP3141816B2 (ja) * 1997-06-19 2001-03-07 日本電気株式会社 発振回路
US7683730B2 (en) * 2004-09-24 2010-03-23 Cypress Semiconductor Corporation Differential crystal oscillator circuit with peak regulation

Also Published As

Publication number Publication date
WO2009122198A1 (en) 2009-10-08
US20110260803A1 (en) 2011-10-27
EP2272167A1 (de) 2011-01-12
US8324978B2 (en) 2012-12-04
EP2272167B1 (de) 2012-02-01
GB0806138D0 (en) 2008-05-14

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