TW200703933A - Voltage controlled oscillator - Google Patents

Voltage controlled oscillator

Info

Publication number
TW200703933A
TW200703933A TW095118705A TW95118705A TW200703933A TW 200703933 A TW200703933 A TW 200703933A TW 095118705 A TW095118705 A TW 095118705A TW 95118705 A TW95118705 A TW 95118705A TW 200703933 A TW200703933 A TW 200703933A
Authority
TW
Taiwan
Prior art keywords
controlled oscillator
voltage controlled
digital data
data used
mos transistor
Prior art date
Application number
TW095118705A
Other languages
Chinese (zh)
Inventor
Hiroshi Katsunaga
Original Assignee
Toyota Jidoshokki Kk
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 Toyota Jidoshokki Kk filed Critical Toyota Jidoshokki Kk
Publication of TW200703933A publication Critical patent/TW200703933A/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
    • H03B5/1228—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 field effect 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
    • H03B5/1237—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
    • 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
    • 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
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0088—Reduction of noise
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/06—Reduction of undesired oscillations through modification of a bias voltage, e.g. selecting the operation point of an active device

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

The purpose of this invention is to suppress the phase noise of the voltage controlled oscillator. The drains of aplurality of MOS transistors TR12, TR13…are connected to the drain of the MOS transistor TR11 through a plurality of switchs SW1,SW2…. The switches SW1, SW2...are either ON or OFF by the digital data used for gm setting, which are obtained from the digital data used for frequency setting, in such a way that the plurality of the MOS transistors TR12, TR13…are parallelly and selectively connected to the MOS transistor TR11. Thus, the current supplied to the resonance 10 is altered thereby.
TW095118705A 2005-05-31 2006-05-26 Voltage controlled oscillator TW200703933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005158632A JP2006339727A (en) 2005-05-31 2005-05-31 Voltage controlled oscillator

Publications (1)

Publication Number Publication Date
TW200703933A true TW200703933A (en) 2007-01-16

Family

ID=37481338

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095118705A TW200703933A (en) 2005-05-31 2006-05-26 Voltage controlled oscillator

Country Status (3)

Country Link
JP (1) JP2006339727A (en)
TW (1) TW200703933A (en)
WO (1) WO2006129405A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI619336B (en) * 2012-07-09 2018-03-21 高通公司 Charge pump regulator circuit and method of operating the same
US11463045B2 (en) 2018-09-25 2022-10-04 Sony Semiconductor Solutions Corporation Oscillator circuit and radio receiver

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5553855B2 (en) * 2005-11-09 2014-07-16 ルネサスエレクトロニクス株式会社 Voltage controlled oscillator and information device using the same
JP2008252774A (en) * 2007-03-30 2008-10-16 Nec Electronics Corp Voltage-controlled oscillator and voltage controlled oscillation method
JP2009284329A (en) * 2008-05-23 2009-12-03 Toshiba Corp Semiconductor integrated circuit device
JP2010161438A (en) * 2009-01-06 2010-07-22 Epson Toyocom Corp Piezoelectric oscillator
JP5117426B2 (en) * 2009-02-25 2013-01-16 ルネサスエレクトロニクス株式会社 Oscillator circuit
US8018293B2 (en) * 2009-06-17 2011-09-13 Qualcomm Incorporated Configurable wide tuning range oscillator core
JP5747761B2 (en) * 2011-09-22 2015-07-15 富士通株式会社 Digital-analog converter and semiconductor integrated circuit
KR101481467B1 (en) * 2013-12-17 2015-01-16 한국교통대학교산학협력단 Low phase noise CMOS voltage-controlled oscillator with series LC resonator
US9634607B2 (en) 2014-03-11 2017-04-25 Qualcomm Incorporated Low noise and low power voltage-controlled oscillator (VCO) using transconductance (gm) degeneration
US10291237B2 (en) * 2016-04-11 2019-05-14 Mediatek Inc. Oscillator circuit with reconfigurable oscillator amplifier and/or hybrid amplitude calibration circuit and associated method
CN114006584B (en) * 2022-01-04 2022-04-22 广州瀚辰信息科技有限公司 Tail current circuit of super regenerative oscillator and super regenerative oscillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3923690B2 (en) * 1999-10-05 2007-06-06 株式会社東芝 Voltage controlled oscillator
JP2004096510A (en) * 2002-08-30 2004-03-25 Fujitsu Ltd Oscillator
JP2004266571A (en) * 2003-02-28 2004-09-24 Nec Electronics Corp Voltage-controlled oscillator
JP2004320647A (en) * 2003-04-18 2004-11-11 Yasuhiro Sugimoto Variable delay time pulse amplifier
JP2006086740A (en) * 2004-09-15 2006-03-30 Matsushita Electric Ind Co Ltd Voltage controlled oscillator and semiconductor integrated circuit for communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI619336B (en) * 2012-07-09 2018-03-21 高通公司 Charge pump regulator circuit and method of operating the same
US11463045B2 (en) 2018-09-25 2022-10-04 Sony Semiconductor Solutions Corporation Oscillator circuit and radio receiver

Also Published As

Publication number Publication date
JP2006339727A (en) 2006-12-14
WO2006129405A1 (en) 2006-12-07

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