SE9903271L - VCO switch - Google Patents

VCO switch

Info

Publication number
SE9903271L
SE9903271L SE9903271A SE9903271A SE9903271L SE 9903271 L SE9903271 L SE 9903271L SE 9903271 A SE9903271 A SE 9903271A SE 9903271 A SE9903271 A SE 9903271A SE 9903271 L SE9903271 L SE 9903271L
Authority
SE
Sweden
Prior art keywords
vco
band
switch
dcs
pcs
Prior art date
Application number
SE9903271A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE519489C2 (en
SE9903271D0 (en
Inventor
Magnus Leif Andre Nilsson
Thomas Mattsson
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9903271A priority Critical patent/SE519489C2/en
Publication of SE9903271D0 publication Critical patent/SE9903271D0/en
Priority to MYPI20003872 priority patent/MY122738A/en
Priority to AU74655/00A priority patent/AU7465500A/en
Priority to PCT/SE2000/001728 priority patent/WO2001020785A1/en
Priority to EP00963207A priority patent/EP1216507A1/en
Priority to CNB008128405A priority patent/CN1199354C/en
Priority to JP2001524243A priority patent/JP2003509942A/en
Publication of SE9903271L publication Critical patent/SE9903271L/en
Publication of SE519489C2 publication Critical patent/SE519489C2/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
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1212—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
    • H03B5/1215—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled long-tailed pair
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

The invention relates to a VCO (100, 130) integrated in a radio ASIC, wherein a switch (180, 60, 70, 80, 90) is arranged for switching the centre frequency of the VCO between arbitrary frequency bands to be able to perform band switching and/or frequency tuning. In a preferred embodiment, the switch switches the centre frequency of the VCO (100, 130) between the DCS-band and the PCS-band. Thus, instead of having one VCO for the DCS-band and another one for the PCS-band, the invention uses only one VCO for both bands saving a lot of valuable space on the ASIC.
SE9903271A 1999-09-13 1999-09-13 VCO switch SE519489C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9903271A SE519489C2 (en) 1999-09-13 1999-09-13 VCO switch
MYPI20003872 MY122738A (en) 1999-09-13 2000-08-23 A vco switch
AU74655/00A AU7465500A (en) 1999-09-13 2000-09-07 An integrated vco switch
PCT/SE2000/001728 WO2001020785A1 (en) 1999-09-13 2000-09-07 An integrated vco switch
EP00963207A EP1216507A1 (en) 1999-09-13 2000-09-07 An integrated vco switch
CNB008128405A CN1199354C (en) 1999-09-13 2000-09-07 Integrated VCO switch
JP2001524243A JP2003509942A (en) 1999-09-13 2000-09-07 Integrated VCO switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903271A SE519489C2 (en) 1999-09-13 1999-09-13 VCO switch

Publications (3)

Publication Number Publication Date
SE9903271D0 SE9903271D0 (en) 1999-09-13
SE9903271L true SE9903271L (en) 2001-03-14
SE519489C2 SE519489C2 (en) 2003-03-04

Family

ID=20416976

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903271A SE519489C2 (en) 1999-09-13 1999-09-13 VCO switch

Country Status (7)

Country Link
EP (1) EP1216507A1 (en)
JP (1) JP2003509942A (en)
CN (1) CN1199354C (en)
AU (1) AU7465500A (en)
MY (1) MY122738A (en)
SE (1) SE519489C2 (en)
WO (1) WO2001020785A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4390105B2 (en) 2004-05-19 2009-12-24 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 Variable capacitance circuit with on / off switch of variable capacitance function, and voltage controlled oscillator using this variable capacitance circuit
US8253506B2 (en) * 2010-10-05 2012-08-28 Qualcomm, Incorporated Wideband temperature compensated resonator and wideband VCO
US9673755B1 (en) * 2016-02-09 2017-06-06 Cognitive Systems Corp. Controlling a switched capacitor bank in a voltage controlled oscillator for wireless sensor devices

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259744A (en) * 1979-08-27 1981-03-31 The United States Of America As Represented By The Secretary Of The Navy Signal generator
JPS5873244A (en) * 1981-10-27 1983-05-02 Nippon Kogaku Kk <Nikon> Pll frequency synthesizer
US5142246A (en) * 1991-06-19 1992-08-25 Telefonaktiebolaget L M Ericsson Multi-loop controlled VCO
US5426384A (en) * 1993-12-27 1995-06-20 Motorola, Inc. Voltage controlled oscillator (VCO) with symmetrical output and logic gate for use in same
JPH07202638A (en) * 1993-12-28 1995-08-04 Matsushita Electric Ind Co Ltd Voltage controlled oscillator
JP3291198B2 (en) * 1996-05-08 2002-06-10 富士通株式会社 Semiconductor integrated circuit
WO1998051014A1 (en) * 1997-05-02 1998-11-12 Analog Devices, Inc. Dual band phase locked loop using independent charge pumps

Also Published As

Publication number Publication date
JP2003509942A (en) 2003-03-11
MY122738A (en) 2006-05-31
EP1216507A1 (en) 2002-06-26
CN1199354C (en) 2005-04-27
CN1373931A (en) 2002-10-09
AU7465500A (en) 2001-04-17
SE519489C2 (en) 2003-03-04
SE9903271D0 (en) 1999-09-13
WO2001020785A1 (en) 2001-03-22

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Legal Events

Date Code Title Description
NUG Patent has lapsed