JP2018152811A - 電圧制御発振器 - Google Patents
電圧制御発振器 Download PDFInfo
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- 230000010355 oscillation Effects 0.000 claims abstract description 27
- 230000007423 decrease Effects 0.000 claims description 29
- 238000010586 diagram Methods 0.000 description 23
- 239000004065 semiconductor Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
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- 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
- H03B1/00—Details
- H03B1/04—Reducing undesired oscillations, e.g. harmonics
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- 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
- H03B5/02—Details
- H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
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- 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
-
- 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
- H03B5/1237—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
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- 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
- H03L1/023—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 by using voltage variable capacitance diodes
-
- 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
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
- H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
-
- 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
- H03B2200/009—Reduction of phase noise
-
- 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
- H03L2207/05—Compensating for non-linear characteristics of the controlled oscillator
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- 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
-
- 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
- H03L7/16—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
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
Description
図2は、第1の実施形態の電圧制御発振器4の構成を示す図である。本実施形態の電圧制御発振器4は、電源電圧VDDが印加される電源供給線10と接地電位が印加される電源供給線11の間に接続される補償電圧生成回路5を有する。補償電圧生成回路5は、温度と共に変化する補償電圧Vbiasを生成する。補償電圧生成回路5は、温度の上昇に従って電流値が減少する電流Icを供給する負の温度特性電流源20と抵抗30の直列回路を有する。
図6は、第2の実施形態の電圧制御発振器4の構成を示す図である。本実施形態の電圧制御発振回路4の補償電圧生成回路5は、温度の上昇と共に電流値が増加する電流Ipを出力する正の温度特性電流源80を有する。
Ir=I−N×Ip ・・・ (1)
Vbias=R300×Ir
=R300×(I−N×Ip) ・・・ (2)
(付記1)
前記第2の電流源の温度特性は、温度の変化に対して一定の電流を流す特性であることを特徴とする請求項4に記載の電圧制御発振器。
(付記2)
前記抵抗素子は、半導体基板の表面に形成された絶縁膜上に形成されることを特徴とする請求項1または2に記載の電圧制御発振器。
(付記3)
前記補償電圧生成回路は、
定電流源と、
前記定電流源の電流によって順バイアスされるダイオードと、
を備えることを特徴とする請求項1から3のいずれか一項に記載の電圧制御発振器。
(付記4)
前記補償電圧生成回路は、
温度の上昇に従って減少する電流を供給する電流源と、
前記電流源の電流が供給される抵抗と、
を備えることを特徴とする請求項1から3のいずれか一項に記載の電圧制御発振器。
(付記5)
前記補償電圧生成回路は、
温度の上昇に従って増加する電流を供給する電流源と、
前記電流源の電流が供給される抵抗と、
を備えることを特徴とする請求項1から3のいずれか一項に記載の電圧制御発振器。
Claims (5)
- 容量素子の容量とインダクタンス素子のインダクタンスの値で発振周波数が定まる電圧制御発振器において、
前記容量素子は印加される電圧によって容量が変化する可変容量素子を備え、
前記可変容量素子の一方の電極に接続され、発振周波数を制御する制御電圧が印加される制御入力端と、
温度と共に変化する電圧を生成する補償電圧生成回路と、
一端が前記可変容量素子の他方の電極に直接接続され、他端に前記補償電圧生成回路の出力端の電圧が供給される抵抗素子と、
を備えることを特徴とする電圧制御発振器。 - 前記可変容量素子は各々の一方の電極が前記制御入力端に接続された第1の可変容量素子と第2の可変容量素子を備え、前記抵抗素子は、各々の一端が各々対応する前記第1の可変容量素子と前記第2の可変容量素子の他方の電極に直接接続され、各々の他端に前記補償電圧生成回路の出力端の電圧が供給される第1の抵抗素子と第2の抵抗素子を備えることを特徴とする請求項1に記載の電圧制御発振器。
- 前記補償電圧生成回路は、温度の上昇に従って前記可変容量素子の容量を減少させる電圧を生成することを特徴とする請求項1または2に記載の電圧制御発振器。
- 前記補償電圧生成回路は、
温度の上昇に従って増加する電流を供給する第1の電流源と、
前記第1の電流源とは異なる温度特性を有する第2の電流源と、
前記第2の電流源の電流から前記第1の電流源の電流の所定倍の電流を差し引いた電流が供給される可変抵抗と、
を備えることを特徴とする請求項1から3のいずれか一項に記載の電圧制御発振器。 - 前記可変容量素子は可変容量ダイオードで構成され、前記制御電圧と前記補償電圧生成回路の電圧によって前記可変容量素子に逆バイアスを印加することを特徴とする請求項1から4のいずれか一項に記載の電圧制御発振器。
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JP2017049481A JP6656195B2 (ja) | 2017-03-15 | 2017-03-15 | 電圧制御発振器 |
US15/700,599 US10270388B2 (en) | 2017-03-15 | 2017-09-11 | Voltage-controlled oscillator and phase locked loop circuit with such voltage-controlled oscillator |
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JP2017049481A JP6656195B2 (ja) | 2017-03-15 | 2017-03-15 | 電圧制御発振器 |
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Cited By (1)
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CN111181489A (zh) * | 2020-01-21 | 2020-05-19 | 广州全盛威信息技术有限公司 | 一种压控振荡器及温漂补偿方法 |
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CN111756371A (zh) * | 2020-07-03 | 2020-10-09 | 上海奥令科电子科技有限公司 | 温度补偿方法和辅助电路、压控振荡装置 |
US11959995B2 (en) * | 2020-08-07 | 2024-04-16 | Stmicroelectronics S.R.L. | Phase-locked loop circuit, corresponding radar sensor, vehicle and method of operation |
KR20220135269A (ko) * | 2021-03-29 | 2022-10-07 | 삼성전자주식회사 | 가변 커패시터 회로 및 이를 포함하는 디지털 제어 오실레이터 |
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JP2005064691A (ja) * | 2003-08-08 | 2005-03-10 | Sony Ericsson Mobilecommunications Japan Inc | 共振回路および電圧制御発振器 |
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JP2015008397A (ja) | 2013-06-25 | 2015-01-15 | 日本電気株式会社 | 電圧制御発振器およびその制御方法 |
TWI594577B (zh) * | 2016-01-14 | 2017-08-01 | 瑞昱半導體股份有限公司 | 振盪頻率產生電路及控制方法 |
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CN111181489A (zh) * | 2020-01-21 | 2020-05-19 | 广州全盛威信息技术有限公司 | 一种压控振荡器及温漂补偿方法 |
CN111181489B (zh) * | 2020-01-21 | 2024-02-20 | 广州全盛威信息技术有限公司 | 一种压控振荡器及温漂补偿方法 |
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US10270388B2 (en) | 2019-04-23 |
US20180269830A1 (en) | 2018-09-20 |
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