EP0886921A4 - Temperature compensation circuit for a crystal oscillator and method of providing same - Google Patents

Temperature compensation circuit for a crystal oscillator and method of providing same

Info

Publication number
EP0886921A4
EP0886921A4 EP97948526A EP97948526A EP0886921A4 EP 0886921 A4 EP0886921 A4 EP 0886921A4 EP 97948526 A EP97948526 A EP 97948526A EP 97948526 A EP97948526 A EP 97948526A EP 0886921 A4 EP0886921 A4 EP 0886921A4
Authority
EP
European Patent Office
Prior art keywords
crystal oscillator
compensation circuit
temperature compensation
providing same
providing
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.)
Withdrawn
Application number
EP97948526A
Other languages
German (de)
French (fr)
Other versions
EP0886921A1 (en
Inventor
Carl E Wojewoda
James F Caruba
Richard N Sutliff
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.)
CTS Corp
Original Assignee
CTS Corp
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 US08/768,154 external-priority patent/US5760656A/en
Priority claimed from US08/901,892 external-priority patent/US5777524A/en
Application filed by CTS Corp filed Critical CTS Corp
Publication of EP0886921A1 publication Critical patent/EP0886921A1/en
Publication of EP0886921A4 publication Critical patent/EP0886921A4/en
Withdrawn legal-status Critical Current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
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes
    • H03L1/025—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes and a memory for digitally storing correction values
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • 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
    • H03B5/366—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 and comprising means for varying the frequency by a variable voltage or current
    • H03B5/368—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 and comprising means for varying the frequency by a variable voltage or current the means being voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • H03J7/12—Combination of automatic frequency control voltage with stabilised varactor supply voltage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
EP97948526A 1996-12-17 1997-11-25 Temperature compensation circuit for a crystal oscillator and method of providing same Withdrawn EP0886921A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/768,154 US5760656A (en) 1996-12-17 1996-12-17 Temperature compensation circuit for a crystal oscillator and associated circuitry
US768154 1996-12-17
US08/901,892 US5777524A (en) 1997-07-29 1997-07-29 Temperature compensation circuit for a crystal oscillator and associated circuitry
US901892 1997-07-29
PCT/US1997/021618 WO1998027652A1 (en) 1996-12-17 1997-11-25 Temperature compensation circuit for a crystal oscillator and method of providing same

Publications (2)

Publication Number Publication Date
EP0886921A1 EP0886921A1 (en) 1998-12-30
EP0886921A4 true EP0886921A4 (en) 2000-03-08

Family

ID=27118014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97948526A Withdrawn EP0886921A4 (en) 1996-12-17 1997-11-25 Temperature compensation circuit for a crystal oscillator and method of providing same

Country Status (5)

Country Link
EP (1) EP0886921A4 (en)
JP (1) JP2000507073A (en)
KR (1) KR100290498B1 (en)
CN (1) CN1211354A (en)
WO (1) WO1998027652A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335554B (en) * 1998-03-18 2002-01-16 Roke Manor Research Radio synchronisation system
JP2001267847A (en) * 2000-03-17 2001-09-28 Asahi Kasei Microsystems Kk Temperature compensated crystal oscillator and method for compensating temperature or the oscillator
KR100457192B1 (en) * 2002-06-17 2004-11-16 주식회사 팬택앤큐리텔 Apparatus for correcting handset frequency error and method thereof
US7042301B2 (en) * 2002-10-15 2006-05-09 Marvell International Ltd. Crystal oscillator emulator
WO2004091100A1 (en) * 2003-04-11 2004-10-21 Philips Intellectual Property & Standards Gmbh Device for detecting the temperature of an oscillator crystal
US7417510B2 (en) * 2006-09-28 2008-08-26 Silicon Laboratories Inc. Direct digital interpolative synthesis
JP2009004918A (en) * 2007-06-19 2009-01-08 Sharp Corp Portable communication terminal, and temperature compensation method thereof
JP2009060227A (en) * 2007-08-30 2009-03-19 Oki Electric Ind Co Ltd Wireless receiver, wireless transmitter, and wireless transmitter/receiver
US20090108949A1 (en) * 2007-10-30 2009-04-30 Qualcomm Incorporated Temperature compensation for crystal oscillators
JP2011066733A (en) * 2009-09-18 2011-03-31 Mitsumi Electric Co Ltd Superheterodyne receiver apparatus and reception method, and semiconductor integrated circuit for receiver apparatus
CN102025320B (en) * 2010-11-25 2013-01-23 Tcl集团股份有限公司 Device and method for improving frequency stability of WIFI (wireless fidelity) access point
CN202270782U (en) 2011-09-05 2012-06-13 浙江胜利工贸有限公司 Straightener for metal materials
CN103138700B (en) * 2013-02-02 2015-12-02 浙江雅晶电子有限公司 A kind of crystal oscillator automatic frequency adjustment machine
JP6623535B2 (en) * 2015-03-27 2019-12-25 セイコーエプソン株式会社 Oscillators, electronics and moving objects
JP6569266B2 (en) * 2015-03-27 2019-09-04 セイコーエプソン株式会社 Oscillators, electronic devices, and moving objects
JP6572587B2 (en) * 2015-03-27 2019-09-11 セイコーエプソン株式会社 Oscillators, electronic devices, and moving objects
US10171090B2 (en) * 2015-03-27 2019-01-01 Seiko Epson Corporation Oscillator, electronic apparatus, and moving object
JP6638340B2 (en) * 2015-11-12 2020-01-29 セイコーエプソン株式会社 Circuit device, oscillator, electronic equipment and moving object

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204975A (en) * 1989-10-12 1993-04-20 Seiko Epson Corporation Digitally-corrected temperature-compensated crystal oscillator having a correction-suspend control for communications service
WO1996032775A1 (en) * 1995-04-14 1996-10-17 Matsushita Electric Industrial Co., Ltd. Quartz oscillator device and its adjusting method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746879A (en) * 1986-08-28 1988-05-24 Ma John Y Digitally temperature compensated voltage-controlled oscillator
US5081431A (en) * 1990-01-26 1992-01-14 Nihon Dempa Kogyo Co., Ltd. Digital temperature-compensated oscillator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204975A (en) * 1989-10-12 1993-04-20 Seiko Epson Corporation Digitally-corrected temperature-compensated crystal oscillator having a correction-suspend control for communications service
WO1996032775A1 (en) * 1995-04-14 1996-10-17 Matsushita Electric Industrial Co., Ltd. Quartz oscillator device and its adjusting method
EP0766376A1 (en) * 1995-04-14 1997-04-02 Matsushita Electric Industrial Co., Ltd. Quartz oscillator device and its adjusting method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9827652A1 *

Also Published As

Publication number Publication date
KR19990082540A (en) 1999-11-25
JP2000507073A (en) 2000-06-06
EP0886921A1 (en) 1998-12-30
WO1998027652A1 (en) 1998-06-25
KR100290498B1 (en) 2001-06-01
CN1211354A (en) 1999-03-17

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