WO2007148282A3 - Varicap replacing circuit for voltage controlled oscillators - Google Patents

Varicap replacing circuit for voltage controlled oscillators Download PDF

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Publication number
WO2007148282A3
WO2007148282A3 PCT/IB2007/052343 IB2007052343W WO2007148282A3 WO 2007148282 A3 WO2007148282 A3 WO 2007148282A3 IB 2007052343 W IB2007052343 W IB 2007052343W WO 2007148282 A3 WO2007148282 A3 WO 2007148282A3
Authority
WO
WIPO (PCT)
Prior art keywords
varicap
voltage controlled
transconductor
electronic device
controlled oscillators
Prior art date
Application number
PCT/IB2007/052343
Other languages
French (fr)
Other versions
WO2007148282A2 (en
Inventor
Eduard F Stikvoort
Mihai A T Sanduleanu
Original Assignee
Koninkl Philips Electronics Nv
Eduard F Stikvoort
Mihai A T Sanduleanu
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 Koninkl Philips Electronics Nv, Eduard F Stikvoort, Mihai A T Sanduleanu filed Critical Koninkl Philips Electronics Nv
Publication of WO2007148282A2 publication Critical patent/WO2007148282A2/en
Publication of WO2007148282A3 publication Critical patent/WO2007148282A3/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
    • H03B5/08—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
    • H03B5/1206—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
    • H03B5/1206—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
    • H03B5/1218—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 generator being of the balanced type
    • 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
    • H03B5/1221—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 multiple amplification stages connected in cascade
    • 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
    • H03B5/1271—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 frequency being controlled by a control current, i.e. current controlled oscillators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/46—One-port networks
    • H03H11/48—One-port networks simulating reactances
    • H03H11/481—Simulating capacitances
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0058—Circuit elements of oscillators with particular transconductance characteristics, e.g. an operational transconductance amplifier
    • 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
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode

Abstract

The invention relates to an electronic device for controlling a controlled oscillator. The electronic device provides a control input for supplying a control signal for tuning the oscillating frequency of the oscillator. Further the electronic device provides a transconductor having a transfer function in the frequency range with a substantially first- order high frequency roll off characteristic. The transconductor is adapted to be coupled to a tank circuit (L0, C0) and to act as a variable capacitance, such that the control signal controls the value of the variable capacitance of the transconductor for tuning the oscillating frequency of the controlled oscillator.
PCT/IB2007/052343 2006-06-21 2007-06-19 Varicap replacing circuit for voltage controlled oscillators WO2007148282A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06115835.8 2006-06-21
EP06115835 2006-06-21

Publications (2)

Publication Number Publication Date
WO2007148282A2 WO2007148282A2 (en) 2007-12-27
WO2007148282A3 true WO2007148282A3 (en) 2008-03-06

Family

ID=38596924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052343 WO2007148282A2 (en) 2006-06-21 2007-06-19 Varicap replacing circuit for voltage controlled oscillators

Country Status (1)

Country Link
WO (1) WO2007148282A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8736392B2 (en) * 2009-03-18 2014-05-27 Qualcomm Incorporated Transformer-based CMOS oscillators
US8766712B2 (en) 2012-05-04 2014-07-01 Analog Devices, Inc. Quality factor tuning for LC circuits
US8918070B2 (en) 2012-05-04 2014-12-23 Analog Devices, Inc. Frequency tuning for LC circuits
CN107332562B (en) * 2017-05-27 2020-12-15 烽火通信科技股份有限公司 Signal sampling circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007508A1 (en) * 1985-06-03 1986-12-18 Motorola, Inc. Balanced variable reactance circuit and method of producing the same
US5166560A (en) * 1991-08-02 1992-11-24 Bell Communications Research, Inc. Voltage-controlled variable capacitor
EP0661806A1 (en) * 1993-12-30 1995-07-05 STMicroelectronics S.A. Voltage controlled capacitance
JPH08307149A (en) * 1995-05-02 1996-11-22 Sony Corp Voltage controlled oscillator
EP0905876A1 (en) * 1997-09-26 1999-03-31 Texas Instruments Incorporated Improvements in or relating to voltage controlled oscillators

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007508A1 (en) * 1985-06-03 1986-12-18 Motorola, Inc. Balanced variable reactance circuit and method of producing the same
US5166560A (en) * 1991-08-02 1992-11-24 Bell Communications Research, Inc. Voltage-controlled variable capacitor
EP0661806A1 (en) * 1993-12-30 1995-07-05 STMicroelectronics S.A. Voltage controlled capacitance
JPH08307149A (en) * 1995-05-02 1996-11-22 Sony Corp Voltage controlled oscillator
US5929716A (en) * 1995-05-02 1999-07-27 Sony Corporation High performance voltage controlled oscillator that is cost efficient
EP0905876A1 (en) * 1997-09-26 1999-03-31 Texas Instruments Incorporated Improvements in or relating to voltage controlled oscillators

Also Published As

Publication number Publication date
WO2007148282A2 (en) 2007-12-27

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