WO2009083501A3 - A phase locked loop - Google Patents

A phase locked loop Download PDF

Info

Publication number
WO2009083501A3
WO2009083501A3 PCT/EP2008/068038 EP2008068038W WO2009083501A3 WO 2009083501 A3 WO2009083501 A3 WO 2009083501A3 EP 2008068038 W EP2008068038 W EP 2008068038W WO 2009083501 A3 WO2009083501 A3 WO 2009083501A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
locked loop
parameter
phase locked
receive
Prior art date
Application number
PCT/EP2008/068038
Other languages
French (fr)
Other versions
WO2009083501A2 (en
Inventor
Paavo Sakari VÄÄNÄNEN
Niko Juhani Mikkola
Petri Antero HEILÖ
Janne Olavi Peltonen
Sami Tapani Vilhonen
Original Assignee
Nokia Corporation
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 Nokia Corporation filed Critical Nokia Corporation
Publication of WO2009083501A2 publication Critical patent/WO2009083501A2/en
Publication of WO2009083501A3 publication Critical patent/WO2009083501A3/en

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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/50—All digital phase-locked loop

Abstract

A phase locked loop circuit comprising; a digitally controlled oscillator configured to receive a first signal and output a second signal dependent on the first signal and at least one mapping function; a phase comparator configured to receive the second signal and output a third signal dependent on the second signal, a reference signal and at least one phase comparator parameter; a loop filter configured to receive the third signal and generate the first signal dependent on the third signal and at least one filter parameter; and a controller configured to control at least one of: the at least one mapping function; the at least one phase comparator parameter; and the at least one filter parameter.
PCT/EP2008/068038 2007-12-28 2008-12-19 A phase locked loop WO2009083501A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0725318.0A GB0725318D0 (en) 2007-12-28 2007-12-28 A phase locked loop
GB0725318.0 2007-12-28

Publications (2)

Publication Number Publication Date
WO2009083501A2 WO2009083501A2 (en) 2009-07-09
WO2009083501A3 true WO2009083501A3 (en) 2009-09-17

Family

ID=39092453

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/068038 WO2009083501A2 (en) 2007-12-28 2008-12-19 A phase locked loop

Country Status (2)

Country Link
GB (1) GB0725318D0 (en)
WO (1) WO2009083501A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8836666B2 (en) 2010-10-31 2014-09-16 Pixart Imaging Inc. Method and device for reducing noise interference in a capacitive touchscreen system
WO2012137109A2 (en) 2011-04-05 2012-10-11 Koninklijke Philips Electronics N.V. Detector array with time-to-digital conversion having improved temporal accuracy
HUE049473T2 (en) * 2016-08-01 2020-09-28 Grieshaber Vega Kg Radar fill level measuring device
US11166250B2 (en) * 2019-10-14 2021-11-02 Rosemount Aerospace Inc. Time synchronization of distributed devices
CN114137394B (en) * 2021-12-01 2024-01-16 上海御渡半导体科技有限公司 Synchronous calibration device and calibration method for trigger signal transmitting direction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707342B1 (en) * 2002-04-02 2004-03-16 Skyworks Solutions, Inc. Multiple-VCO tuning
US20060239393A1 (en) * 2005-04-21 2006-10-26 Agere Systems Inc. Method and apparatus for providing synchronization in a communication system
US20070085622A1 (en) * 2005-10-19 2007-04-19 Texas Instruments Incorporated Continuous reversible gear shifting mechanism
US20070247235A1 (en) * 2006-04-06 2007-10-25 Francesco Gatta Calibration techniques for phase-locked loop bandwidth

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707342B1 (en) * 2002-04-02 2004-03-16 Skyworks Solutions, Inc. Multiple-VCO tuning
US20060239393A1 (en) * 2005-04-21 2006-10-26 Agere Systems Inc. Method and apparatus for providing synchronization in a communication system
US20070085622A1 (en) * 2005-10-19 2007-04-19 Texas Instruments Incorporated Continuous reversible gear shifting mechanism
US20070247235A1 (en) * 2006-04-06 2007-10-25 Francesco Gatta Calibration techniques for phase-locked loop bandwidth

Also Published As

Publication number Publication date
WO2009083501A2 (en) 2009-07-09
GB0725318D0 (en) 2008-02-06

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