ATE544238T1 - Kristalloszillator-taktschaltung - Google Patents
Kristalloszillator-taktschaltungInfo
- 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
Links
- 239000013078 crystal Substances 0.000 title abstract 4
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
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 (10)
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 |
US10454420B2 (en) * | 2017-06-30 | 2019-10-22 | Silicon Laboratories Inc. | Crystal driver circuit configurable for daisy chaining |
US10367462B2 (en) | 2017-06-30 | 2019-07-30 | Silicon Laboratories Inc. | Crystal amplifier with additional high gain amplifier core to optimize startup operation |
US10536115B2 (en) | 2017-06-30 | 2020-01-14 | Silicon Laboratories Inc. | Crystal driver circuit with external oscillation signal amplitude control |
US10574185B2 (en) | 2017-06-30 | 2020-02-25 | Silicon Laboratories Inc. | Crystal driver circuit with core amplifier having unbalanced tune capacitors |
US10491157B1 (en) | 2018-07-11 | 2019-11-26 | Silicon Laboratories Inc. | Crystal oscillator adaptive startup energy minimization |
US10601369B2 (en) | 2018-07-11 | 2020-03-24 | Silicon Laboratories Inc. | Crystal oscillator startup time optimization |
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 |
Family Cites Families (5)
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 |
-
2008
- 2008-04-04 GB GBGB0806138.4A patent/GB0806138D0/en not_active Ceased
-
2009
- 2009-03-25 AT AT09728362T patent/ATE544238T1/de active
- 2009-03-25 EP EP09728362A patent/EP2272167B1/de not_active Not-in-force
- 2009-03-25 WO PCT/GB2009/050283 patent/WO2009122198A1/en active Application Filing
- 2009-03-25 US US12/936,023 patent/US8324978B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2272167B1 (de) | 2012-02-01 |
EP2272167A1 (de) | 2011-01-12 |
US8324978B2 (en) | 2012-12-04 |
GB0806138D0 (en) | 2008-05-14 |
WO2009122198A1 (en) | 2009-10-08 |
US20110260803A1 (en) | 2011-10-27 |
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