AU2001227549A1 - Digital divider as a local oscillator for frequency synthesis - Google Patents

Digital divider as a local oscillator for frequency synthesis

Info

Publication number
AU2001227549A1
AU2001227549A1 AU2001227549A AU2754901A AU2001227549A1 AU 2001227549 A1 AU2001227549 A1 AU 2001227549A1 AU 2001227549 A AU2001227549 A AU 2001227549A AU 2754901 A AU2754901 A AU 2754901A AU 2001227549 A1 AU2001227549 A1 AU 2001227549A1
Authority
AU
Australia
Prior art keywords
local oscillator
frequency synthesis
digital divider
divider
digital
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.)
Abandoned
Application number
AU2001227549A
Inventor
Nikolaus Klemmer
Antonio J. Montalvo
Steven L. White
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.)
Ericsson Inc
Original Assignee
Ericsson 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
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of AU2001227549A1 publication Critical patent/AU2001227549A1/en
Abandoned 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
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
AU2001227549A 2000-01-11 2001-01-02 Digital divider as a local oscillator for frequency synthesis Abandoned AU2001227549A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/481,248 US6708026B1 (en) 2000-01-11 2000-01-11 Division based local oscillator for frequency synthesis
US09481248 2000-01-11
PCT/US2001/000069 WO2001052420A1 (en) 2000-01-11 2001-01-02 Digital divider as a local oscillator for frequency synthesis

Publications (1)

Publication Number Publication Date
AU2001227549A1 true AU2001227549A1 (en) 2001-07-24

Family

ID=23911217

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001227549A Abandoned AU2001227549A1 (en) 2000-01-11 2001-01-02 Digital divider as a local oscillator for frequency synthesis

Country Status (5)

Country Link
US (1) US6708026B1 (en)
EP (1) EP1250761A1 (en)
JP (1) JP2003520484A (en)
AU (1) AU2001227549A1 (en)
WO (1) WO2001052420A1 (en)

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US6850745B2 (en) * 2002-01-23 2005-02-01 Broadcom Corp Method and apparatus for generating a self-correcting local oscillation
KR100468734B1 (en) * 2002-06-11 2005-01-29 삼성전자주식회사 Frequency synthesizer for reducing noise
US20040166825A1 (en) * 2003-02-25 2004-08-26 Jen-Sheng Huang Wireless receiver
DE102004005503B4 (en) * 2004-01-30 2009-11-26 Atmel Automotive Gmbh Method for frequency conversion and receiver
JP4155406B2 (en) * 2004-04-01 2008-09-24 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 Delta-sigma modulation type fractional frequency division PLL frequency synthesizer and radio communication apparatus
US7064591B1 (en) * 2004-05-11 2006-06-20 Rf Micro Devices, Inc. Coarse tuning for fractional-N synthesizers
US7365580B2 (en) * 2005-01-21 2008-04-29 Snowbush Inc. System and method for jitter control
US7482885B2 (en) * 2005-12-29 2009-01-27 Orca Systems, Inc. Method of frequency synthesis for fast switching
JP4718566B2 (en) * 2006-02-07 2011-07-06 三菱電機株式会社 Fractional-N phase-locked loop frequency synthesizer and phase shift circuit with frequency conversion function
US7519349B2 (en) * 2006-02-17 2009-04-14 Orca Systems, Inc. Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
US20090088194A1 (en) * 2007-09-27 2009-04-02 Telefonaktiebolaget Lm Ericsson (Publ) Single Multi-Mode Clock Source for Wireless Devices
US9054711B2 (en) * 2009-07-02 2015-06-09 Infineon Technologies Ag Frequency divider
US10250200B2 (en) * 2016-09-12 2019-04-02 Avago Technologies International Sales Pte. Limited Low power spectrally pure offset local oscillator system
CN107529712A (en) * 2017-07-27 2018-01-02 钰太芯微电子科技（上海）有限公司 A kind of microphone and Bluetooth circuit plate of built-in crystal oscillator

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3566480D1 (en) * 1985-05-23 1988-12-29 Itt Ind Gmbh Deutsche Frequency synthesis circuit for the generation of an analogous signal with a digitally stepwise tunable frequency
JP2546331B2 (en) * 1988-04-26 1996-10-23 ソニー株式会社 FM / AM receiver
US6002926A (en) * 1989-09-27 1999-12-14 Nec Corporation Double superheterodyne type receiving circuit
CA2003428C (en) 1989-11-21 1999-12-14 Thomas Atkin Denning Riley Frequency synthesizer
US5038117A (en) * 1990-01-23 1991-08-06 Hewlett-Packard Company Multiple-modulator fractional-N divider
GB9115350D0 (en) 1991-07-16 1991-08-28 Navstar Ltd A radio receiver
FR2709624B1 (en) 1993-08-31 1995-11-17 Sgs Thomson Microelectronics Frequency synthesizer.
US5535247A (en) 1993-09-24 1996-07-09 Motorola, Inc. Frequency modifier for a transmitter
JP3538994B2 (en) * 1995-09-20 2004-06-14 ソニー株式会社 Digital counter and digital PLL circuit
JP3120973B2 (en) * 1996-09-27 2000-12-25 日本電気株式会社 Double superheterodyne receiving method and its receiving circuit
JPH10112669A (en) * 1996-10-07 1998-04-28 Matsushita Electric Ind Co Ltd Frequency synthesizer, receiver and frequency modulator
US5731743A (en) 1996-10-07 1998-03-24 David Sarnoff Research Center, Inc. Frequency synthesizer having phase error feedback for waveform selection
JPH10303776A (en) * 1997-04-28 1998-11-13 Toshiba Corp Receiver
JP3901810B2 (en) * 1997-09-26 2007-04-04 日本テキサス・インスツルメンツ株式会社 Frequency synthesizer with correction circuit
US6005904A (en) * 1997-10-16 1999-12-21 Oasis Design, Inc. Phase-locked loop with protected output during instances when the phase-locked loop is unlocked
US6008704A (en) * 1998-06-09 1999-12-28 Rockwell Collins, Inc. Fractional frequency synthesizer with modulation linearizer

Also Published As

Publication number Publication date
EP1250761A1 (en) 2002-10-23
US6708026B1 (en) 2004-03-16
JP2003520484A (en) 2003-07-02
WO2001052420A1 (en) 2001-07-19

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