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TW200703875A - Integrated clock generator and timing/frequency reference - Google Patents

  • ️Tue Jan 16 2007

TW200703875A - Integrated clock generator and timing/frequency reference - Google Patents

Integrated clock generator and timing/frequency reference

Info

Publication number
TW200703875A
TW200703875A TW095109658A TW95109658A TW200703875A TW 200703875 A TW200703875 A TW 200703875A TW 095109658 A TW095109658 A TW 095109658A TW 95109658 A TW95109658 A TW 95109658A TW 200703875 A TW200703875 A TW 200703875A Authority
TW
Taiwan
Prior art keywords
frequency
controller
timing
clock generator
implemented
Prior art date
2005-03-21
Application number
TW095109658A
Other languages
Chinese (zh)
Other versions
TWI407682B (en
Inventor
Michael Shannon Mccorquodale
Scott Michael Pernia
Sundus Kubba
Justin O'day
Gordon Carichner
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.)
2005-03-21
Filing date
2006-03-21
Publication date
2007-01-16
2005-03-21 Priority claimed from US11/084,962 external-priority patent/US7227423B2/en
2005-09-20 Priority claimed from US11/232,407 external-priority patent/US7456699B2/en
2006-03-21 Application filed by Mobius Microsystems Inc filed Critical Mobius Microsystems Inc
2007-01-16 Publication of TW200703875A publication Critical patent/TW200703875A/en
2013-09-01 Application granted granted Critical
2013-09-01 Publication of TWI407682B publication Critical patent/TWI407682B/en

Links

  • 238000003491 array Methods 0.000 abstract 1
  • 238000004519 manufacturing process Methods 0.000 abstract 1
  • 238000000034 method Methods 0.000 abstract 1

Landscapes

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

Abstract

In various embodiments, the invention provides a clock generator and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller to control and provide a stable resonant frequency, which is integrated with other, second circuitry such as a processor or controller. Frequency stability is provided over variations in a selected parameter such as temperature and fabrication process variations. The various apparatus embodiments include a sensor adapted to provide a signal in response to at least one parameter of a plurality of parameters; and a frequency controller adapted to modify the resonant frequency in response to the second signal. In exemplary embodiments, the sensor is implemented as a current source responsive to temperature fluctuations, and the frequency controller is implemented as a plurality of controlled reactance modules which are selectively couplable to the resonator or to one or more control voltages. The controlled reactance modules may include fixed or variable capacitances or inductances, and may be binary weighted. Arrays of resistive modules are also provided, to generate one or more control voltages.

TW95109658A 2005-03-21 2006-03-21 Integrated clock generator and timing/frequency reference TWI407682B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/084,962 US7227423B2 (en) 2004-03-22 2005-03-21 Monolithic clock generator and timing/frequency reference
US11/085,372 US7227424B2 (en) 2004-03-22 2005-03-21 Transconductance and current modulation for resonant frequency control and selection
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
TW200703875A true TW200703875A (en) 2007-01-16
TWI407682B TWI407682B (en) 2013-09-01

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
TW95109654A TWI426701B (en) 2005-03-21 2006-03-21 Inductor and capacitor-based clock generator and timing/frequency reference
TW95109663A TWI426710B (en) 2005-03-21 2006-03-21 Discrete clock generator and timing/frequency reference

Family Applications Before (2)

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

Family Applications After (2)

Application Number Title Priority Date Filing Date
TW95109654A TWI426701B (en) 2005-03-21 2006-03-21 Inductor and capacitor-based clock generator and timing/frequency reference
TW95109663A TWI426710B (en) 2005-03-21 2006-03-21 Discrete clock generator and timing/frequency reference

Country Status (1)

Country Link
TW (5) TWI387208B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008083265A1 (en) * 2006-12-29 2008-07-10 Teradyne, Inc. Identifying periodic jitter in a signal
KR100912093B1 (en) 2007-05-18 2009-08-13 삼성전자주식회사 A temperature-proportional current generating circuit having a high temperature coefficient, a display device comprising the temperature-proportional current generating circuit and a method thereof
TWI411907B (en) * 2009-02-04 2013-10-11 Holtek Semiconductor Inc System clock adjusting apparatus
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
US10691156B2 (en) * 2017-08-31 2020-06-23 Texas Instruments Incorporated Complementary to absolute temperature (CTAT) voltage generator
US11025232B2 (en) * 2018-01-25 2021-06-01 CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et Développement Electronic device
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 intelligent low-current oscillation circuit with wide operating voltage and temperature compensation
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

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528680A (en) * 1978-08-22 1980-02-29 Nec Corp Oscillation circuit
US4387350A (en) * 1980-12-24 1983-06-07 Rca Corporation Watch circuit with oscillator gain control
US4956618A (en) * 1989-04-07 1990-09-11 Vlsi Technology, Inc. Start-up circuit for low power MOS crystal oscillator
EP0630129A2 (en) * 1993-06-09 1994-12-21 Alcatel SEL Aktiengesellschaft Method for generating a synchronised clock signal with a circuit for an adjustable oscillator
US6014752A (en) * 1995-01-27 2000-01-11 Sun Mircosystems, Inc. Method and apparatus for fully controllable integrated circuit internal clock
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
TW475321B (en) * 1999-03-26 2002-02-01 Microtek Int Inc Method and apparatus for a decentralized and wireless communications system
US6654898B1 (en) * 1999-07-15 2003-11-25 Apple Computer, Inc. Stable clock generation internal to a functional integrated circuit chip
JP3495311B2 (en) * 2000-03-24 2004-02-09 Ｎｅｃエレクトロニクス株式会社 Clock control circuit
EP1189347A1 (en) * 2000-09-15 2002-03-20 Texas Instruments France Electronically trimmed VCO
US6665339B1 (en) * 2001-03-19 2003-12-16 Cisco Systems Wireless Networking (Australia) Pty. Limited Method and apparatus for reducing oscillator pull in a CMOS wireless transceiver integrated circuit
US6583675B2 (en) * 2001-03-20 2003-06-24 Broadcom Corporation Apparatus and method for phase lock loop gain control using unit current sources
DE10127423B4 (en) * 2001-06-06 2005-10-06 Infineon Technologies Ag Electronic circuit with power control
JP4831899B2 (en) * 2001-08-28 2011-12-07 富士通セミコンダクター株式会社 Semiconductor integrated circuit and clock control method
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
US7126405B2 (en) * 2002-12-02 2006-10-24 Scott Fairbanks Method and apparatus for a distributed clock generator
KR100498484B1 (en) * 2003-01-30 2005-07-01 삼성전자주식회사 Wide band voltage controlled oscillator with constant gain and method thereof
TWI261415B (en) * 2003-05-21 2006-09-01 Leadtek Research Inc Pulse interval to voltage converter and converting method thereof
JP4613483B2 (en) * 2003-09-04 2011-01-19 日本電気株式会社 Integrated circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
TWI387208B (en) 2013-02-21
TW200705815A (en) 2007-02-01
TWI426710B (en) 2014-02-11
TWI426701B (en) 2014-02-11
TWI378648B (en) 2012-12-01
TW200703878A (en) 2007-01-16
TWI407682B (en) 2013-09-01
TW200635235A (en) 2006-10-01
TW200635234A (en) 2006-10-01

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Legal Events

Date Code Title Description
2015-06-01 MM4A Annulment or lapse of patent due to non-payment of fees