TW200700958A - Low frequency clock generation - Google Patents

Low frequency clock generation

Info

Publication number
TW200700958A
TW200700958A TW095115726A TW95115726A TW200700958A TW 200700958 A TW200700958 A TW 200700958A TW 095115726 A TW095115726 A TW 095115726A TW 95115726 A TW95115726 A TW 95115726A TW 200700958 A TW200700958 A TW 200700958A
Authority
TW
Taiwan
Prior art keywords
resonator
low frequency
clock generation
frequency clock
frequency
Prior art date
Application number
TW095115726A
Other languages
Chinese (zh)
Other versions
TWI402658B (en
Inventor
Michael Louis Frank
Mark A Unkrich
Original Assignee
Avago Technologies General Ip
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 US11/232,581 external-priority patent/US8058933B2/en
Application filed by Avago Technologies General Ip filed Critical Avago Technologies General Ip
Publication of TW200700958A publication Critical patent/TW200700958A/en
Application granted granted Critical
Publication of TWI402658B publication Critical patent/TWI402658B/en

Links

Classifications

    • 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
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • 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
    • H03L1/026—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 a memory for digitally storing correction values

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Transmitters (AREA)

Abstract

A first and a second resonator are fabricated monolithically adjacent to one another. The first resonator is the reference resonator. The resonant frequency of the second resonator is offset by a difference frequency Fo from the first resonator. Each resonator is included within an oscillator. A mixer receives the output of both oscillators. A low pass filter receives the mixer output and generates a clock signal whose frequency is equal to the difference frequency Fo.
TW95115726A 2005-05-13 2006-05-03 Low frequency clock generation TWI402658B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68119805P 2005-05-13 2005-05-13
US11/232,581 US8058933B2 (en) 2005-09-21 2005-09-21 Low frequency clock generation

Publications (2)

Publication Number Publication Date
TW200700958A true TW200700958A (en) 2007-01-01
TWI402658B TWI402658B (en) 2013-07-21

Family

ID=36604095

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95115726A TWI402658B (en) 2005-05-13 2006-05-03 Low frequency clock generation

Country Status (4)

Country Link
JP (1) JP4926539B2 (en)
CN (1) CN1972127B (en)
GB (1) GB2426133A (en)
TW (1) TWI402658B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5552413B2 (en) * 2010-11-04 2014-07-16 日本電波工業株式会社 Dual mode oscillator
CN107276582B (en) * 2017-05-17 2021-01-26 电子科技大学 Temperature compensation crystal oscillator based on analog circuit
US10523225B2 (en) * 2017-08-29 2019-12-31 Texas Instruments Incorporated Beating high-Q resonators oscillator
US10431867B1 (en) * 2018-06-19 2019-10-01 Northrop Grumman Systems Corporation Clock distribution system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1197514B (en) * 1963-05-04 1965-07-29 Wandel & Goltermann Beat transmitter
US3421106A (en) * 1967-10-03 1969-01-07 Hewlett Packard Co Differential frequency transducer
EP0345390A1 (en) * 1988-06-08 1989-12-13 Hewlett-Packard Limited Improvement in or Relating to Jitter Circuits
JP3253207B2 (en) * 1993-01-25 2002-02-04 松下電器産業株式会社 Temperature compensated crystal oscillator
JPH0870218A (en) * 1994-08-29 1996-03-12 Murata Mfg Co Ltd Temperature compensated crystal oscillator
JPH0870232A (en) * 1994-08-29 1996-03-12 Meidensha Corp Surface acoustic wave element and oscillat0r
US7166495B2 (en) * 1996-02-20 2007-01-23 Micron Technology, Inc. Method of fabricating a multi-die semiconductor package assembly
US7555263B1 (en) * 1999-10-21 2009-06-30 Broadcom Corporation Adaptive radio transceiver
JP2001127554A (en) * 1999-10-27 2001-05-11 Nec Corp Voltage controlled oscillator
DE60042916D1 (en) * 2000-01-10 2009-10-22 Eta Sa Mft Horlogere Suisse Device for generating a signal whose frequency is substantially independent of temperature
JP2005033379A (en) * 2003-07-09 2005-02-03 Tdk Corp Thin film bulk wave vibrating element and manufacturing method thereof
US7212075B2 (en) * 2003-07-18 2007-05-01 Halliburton Energy Services, Inc. Downhole clock having temperature compensation
JP2005079677A (en) * 2003-08-28 2005-03-24 Sanyo Electric Co Ltd Signal processing circuit for tuner

Also Published As

Publication number Publication date
GB0609026D0 (en) 2006-06-14
GB2426133A (en) 2006-11-15
CN1972127B (en) 2011-08-17
CN1972127A (en) 2007-05-30
JP4926539B2 (en) 2012-05-09
JP2006318478A (en) 2006-11-24
TWI402658B (en) 2013-07-21

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Legal Events

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