WO2004102808A3 - Frequency synthesizer with acoustic resonance vco - Google Patents

Frequency synthesizer with acoustic resonance vco Download PDF

Info

Publication number
WO2004102808A3
WO2004102808A3 PCT/IB2004/001377 IB2004001377W WO2004102808A3 WO 2004102808 A3 WO2004102808 A3 WO 2004102808A3 IB 2004001377 W IB2004001377 W IB 2004001377W WO 2004102808 A3 WO2004102808 A3 WO 2004102808A3
Authority
WO
WIPO (PCT)
Prior art keywords
vco
frequency synthesizer
acoustic resonance
frequency signal
output
Prior art date
Application number
PCT/IB2004/001377
Other languages
French (fr)
Other versions
WO2004102808A2 (en
Original Assignee
Nokia Corp
Nokia 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 Nokia Corp, Nokia Inc filed Critical Nokia Corp
Publication of WO2004102808A2 publication Critical patent/WO2004102808A2/en
Publication of WO2004102808A3 publication Critical patent/WO2004102808A3/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
    • 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
    • H03B5/326—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator being an acoustic wave device, e.g. SAW or BAW device
    • 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
    • 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
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics 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
    • H03L7/099—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
    • H03L7/16—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

Abstract

A frequency synthesizer (30) is constructed to include a reference oscillator (12,14), a phase comparator (16) having a first input coupled to an output of said reference oscillator (12,14) and outputting a frequency tuning voltage; a VCO (32) having an input coupled to the frequency tuning voltage and outputting an output frequency signal and a programmable divider (22) coupled to the output frequency signal and providing a divided output frequency signal to a second input of the phase comparator (16). In the presently preferred embodiment the VCO (32) includes at least one acoustic resonator (40).
PCT/IB2004/001377 2003-05-14 2004-05-04 Frequency synthesizer with acoustic resonance vco WO2004102808A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/439,260 2003-05-14
US10/439,260 US20040227578A1 (en) 2003-05-14 2003-05-14 Acoustic resonance-based frequency synthesizer using at least one bulk acoustic wave (BAW) or thin film bulk acoustic wave (FBAR) device

Publications (2)

Publication Number Publication Date
WO2004102808A2 WO2004102808A2 (en) 2004-11-25
WO2004102808A3 true WO2004102808A3 (en) 2005-04-14

Family

ID=33417762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/001377 WO2004102808A2 (en) 2003-05-14 2004-05-04 Frequency synthesizer with acoustic resonance vco

Country Status (2)

Country Link
US (1) US20040227578A1 (en)
WO (1) WO2004102808A2 (en)

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US9755671B2 (en) 2013-08-01 2017-09-05 Qorvo Us, Inc. VSWR detector for a tunable filter structure
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Also Published As

Publication number Publication date
US20040227578A1 (en) 2004-11-18
WO2004102808A2 (en) 2004-11-25

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