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TW200635234A - Low-latency start-up for a monolithic clock generator and timing/frequency reference - Google Patents

Low-latency start-up for a monolithic clock generator and timing/frequency reference

Info

Publication number
TW200635234A
TW200635234A TW094132743A TW94132743A TW200635234A TW 200635234 A TW200635234 A TW 200635234A TW 094132743 A TW094132743 A TW 094132743A TW 94132743 A TW94132743 A TW 94132743A TW 200635234 A TW200635234 A TW 200635234A
Authority
TW
Taiwan
Prior art keywords
current
low
timing
clock generator
frequency reference
Prior art date
Application number
TW094132743A
Other languages
Chinese (zh)
Other versions
TWI387208B (en
Inventor
Scott Michael Pernia
Michael Shannon Mccorquodale
Sundus Kubba
Original Assignee
Mobius Microsystems 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
Priority claimed from US11/085,372 external-priority patent/US7227424B2/en
Priority claimed from US11/232,407 external-priority patent/US7456699B2/en
Application filed by Mobius Microsystems Inc filed Critical Mobius Microsystems Inc
Publication of TW200635234A publication Critical patent/TW200635234A/en
Application granted granted Critical
Publication of TWI387208B publication Critical patent/TWI387208B/en

Links

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Electronic Switches (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

An apparatus, system and method are provided for low-latency start-up of a free-running harmonic oscillator. The exemplary apparatus embodiment comprises a first and second current sources to generate first and second currents; a bias current monitor adapted to detect a magnitude of the second current and to provide a control signal when the magnitude of the second current is equal to or greater than a predetermined magnitude; and a bias controller adapted to switch the first current from the oscillator and to switch the second current to the oscillator in response to the control signal. Exemplary embodiments include reference voltage generator, a comparator, and a bias controller.
TW94132743A 2005-03-21 2005-09-21 Low-latency start-up for a monolithic clock generator and timing/frequency reference TWI387208B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/085,372 US7227424B2 (en) 2004-03-22 2005-03-21 Transconductance and current modulation for resonant frequency control and selection
US11/084,962 US7227423B2 (en) 2004-03-22 2005-03-21 Monolithic clock generator and timing/frequency reference
US11/232,407 US7456699B2 (en) 2004-03-22 2005-09-20 Frequency controller for a monolithic clock generator and timing/frequency reference

Publications (2)

Publication Number Publication Date
TW200635234A true TW200635234A (en) 2006-10-01
TWI387208B TWI387208B (en) 2013-02-21

Family

ID=48087852

Family Applications (5)

Application Number Title Priority Date Filing Date
TW94132743A TWI387208B (en) 2005-03-21 2005-09-21 Low-latency start-up for a monolithic clock generator and timing/frequency reference
TW94132744A TWI378648B (en) 2005-03-21 2005-09-21 Frequency calibration system and apparatus and method for frequency calibration of an oscillator
TW95109658A TWI407682B (en) 2005-03-21 2006-03-21 Integrated clock generator and timing/frequency reference
TW95109663A TWI426710B (en) 2005-03-21 2006-03-21 Discrete clock generator and timing/frequency reference
TW95109654A TWI426701B (en) 2005-03-21 2006-03-21 Inductor and capacitor-based clock generator and timing/frequency reference

Family Applications After (4)

Application Number Title Priority Date Filing Date
TW94132744A TWI378648B (en) 2005-03-21 2005-09-21 Frequency calibration system and apparatus and method for frequency calibration of an oscillator
TW95109658A TWI407682B (en) 2005-03-21 2006-03-21 Integrated clock generator and timing/frequency reference
TW95109663A TWI426710B (en) 2005-03-21 2006-03-21 Discrete clock generator and timing/frequency reference
TW95109654A TWI426701B (en) 2005-03-21 2006-03-21 Inductor and capacitor-based clock generator and timing/frequency reference

Country Status (1)

Country Link
TW (5) TWI387208B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8994444B2 (en) 2007-05-18 2015-03-31 Samsung Electronics Co., Ltd. Proportional to absolute temperature current generation circuit having higher temperature coefficient, display device including the same, and method thereof
CN109425766A (en) * 2017-08-31 2019-03-05 德克萨斯仪器股份有限公司 Improved absolute temperature complementarity type (CTAT) voltage generator
TWI766765B (en) * 2021-07-20 2022-06-01 大陸商星宸科技股份有限公司 Clock generator device and clock generation method
TWI804565B (en) * 2018-01-25 2023-06-11 瑞士商瑞士電子及微科技研究與發展中心公司 Electronic device

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TWI411907B (en) * 2009-02-04 2013-10-11 Holtek Semiconductor Inc System clock adjusting apparatus
TWI505642B (en) * 2012-12-21 2015-10-21 Nat Univ Chung Cheng All - digital Spread Spectrum Clock Generation Circuit with Electromagnetic Interference Effect Decay and Its Control Method
US8988134B2 (en) * 2013-03-04 2015-03-24 Microchip Technology Incorporated System and method for operating low power circuits at high temperatures
TWI548886B (en) 2014-04-18 2016-09-11 創意電子股份有限公司 Aging detection circuit and method thereof
JP2016109673A (en) * 2014-10-16 2016-06-20 ディーシージー システムズ、 インコーポレイテッドＤｃｇ Ｓｙｓｔｅｍｓ Ｉｎｃ． Systems and method for laser voltage imaging
CN111837341B (en) * 2018-03-19 2024-07-05 神话公司 System and method for mixed signal computation
US10659011B2 (en) 2018-10-22 2020-05-19 Delta Electronics Int'l (Singapore) Pte Ltd Low noise amplifier
CN109361337B (en) 2018-12-13 2024-01-12 上海艾为电子技术股份有限公司 Frequency calibration method of driving voltage waveform of linear resonance device and related device
TWI694675B (en) * 2019-04-19 2020-05-21 敦宏科技股份有限公司 Method for low-current oscillation circuit with wide operation voltage and temperature compensation

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US6233441B1 (en) * 1998-05-29 2001-05-15 Silicon Laboratories, Inc. Method and apparatus for generating a discretely variable capacitance for synthesizing high-frequency signals for wireless communications
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US6654898B1 (en) * 1999-07-15 2003-11-25 Apple Computer, Inc. Stable clock generation internal to a functional integrated circuit chip
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US6486727B1 (en) * 2001-10-11 2002-11-26 Pericom Semiconductor Corp. Low-power substrate bias generator disabled by comparators for supply over-voltage protection and bias target voltage
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8994444B2 (en) 2007-05-18 2015-03-31 Samsung Electronics Co., Ltd. Proportional to absolute temperature current generation circuit having higher temperature coefficient, display device including the same, and method thereof
CN109425766A (en) * 2017-08-31 2019-03-05 德克萨斯仪器股份有限公司 Improved absolute temperature complementarity type (CTAT) voltage generator
CN109425766B (en) * 2017-08-31 2022-11-04 德克萨斯仪器股份有限公司 Improved complementary absolute temperature (CTAT) voltage generator
TWI804565B (en) * 2018-01-25 2023-06-11 瑞士商瑞士電子及微科技研究與發展中心公司 Electronic device
TWI766765B (en) * 2021-07-20 2022-06-01 大陸商星宸科技股份有限公司 Clock generator device and clock generation method

Also Published As

Publication number Publication date
TW200703878A (en) 2007-01-16
TWI426701B (en) 2014-02-11
TWI378648B (en) 2012-12-01
TWI407682B (en) 2013-09-01
TW200635235A (en) 2006-10-01
TWI387208B (en) 2013-02-21
TW200703875A (en) 2007-01-16
TW200705815A (en) 2007-02-01
TWI426710B (en) 2014-02-11

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