JP2021150914A - 半導体装置、デジタル制御発振器、周波数シンセサイザ、及び半導体装置の制御方法 - Google Patents
半導体装置、デジタル制御発振器、周波数シンセサイザ、及び半導体装置の制御方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 12
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- 230000003071 parasitic effect Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 description 17
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- 239000003990 capacitor Substances 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
- G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
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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
- 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
- H03B5/1228—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
-
- 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
- H03B5/1262—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 switched elements
- H03B5/1265—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 switched elements switched capacitors
-
- 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
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
-
- 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
- H03L7/197—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 a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
-
- 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
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- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Nonlinear Science (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
図1は、無線通信装置1のブロック図である。図1に示すように、無線通信装置1は、周波数シンセサイザ100と、アンテナ200と、スイッチ201と、低雑音増幅器202と、ミキサ203と、フィルタ204と、可変利得増幅器(VGA:Variable Gain Amplifier)205と、A/D変換器(Analog/Digital変換器)206と、信号処理部207と、D/A変換器(Digital/Analog変換器)208と、フィルタ209と、ミキサ210と、電力増幅器211と、を有する。
図2は、本実施形態に係る周波数シンセサイザ100の構成を示すブロック図である。本実施形態に係る周波数シンセサイザ100は、制御回路110と、
デジタル制御発振器120と、を備える。例えば、周波数シンセサイザ100は、デジタル制御発振器120の発振周波数を制御回路110によりループ制御するフェーズドロックループ(PLL)回路である。
図3は、本実施形態に係る周波数シンセサイザ100で使用可能な周波数帯域を示すバンド図である。図3に示すように、本実施形態に係るマスター1とスレーブ2、3との間で使用する周波数帯域は、Bluetooth規格で予め決められた、2.4[GHz]帯域である。詳しくは、2.402〜2.480[GHz]の周波数が79分割される。つまり、2.402[GHz]、2.403[GHz]、2.404[GHz]、・・・、2.480[GHz]のいずれかの周波数を用いて通信が行われる。
図5は、第2素子群130の構成例を示す図である。図5に示すように、第2素子群130は、32×32個の素子E(1、1)〜E(32、32)を有する。これらの32×32個の素子E(1、1)〜E(32、32)は、2次元の行列状に配置される。ここで、n行、m列を(n、m)で示すこととする。例えばn、mは1以上32以下の整数である。これにより、例えば素子E(12、15)は、12行15列に配置される素子を意味する。また、第2素子群130は、列状に配置された制御端子130aと、行状に配置された上側の制御端子130bと、行状に配置された下側の制御端子130cと、を有する。なお、本実施形態では、説明を簡単にするために、素子Eの数を32×32個としているが、これに限定されない。
換言すると、全てのスイッチング素子S(n、1)〜S(n、32)が道通状態であれば、制御端子Ot1〜Ot32と、対応する制御端子Ob1〜Ob32間は同電位となるので、第1容量信号(L)、第2容量信号(H)のいずれか一方しか印加できなくなる。これに対して、本実施形態では、Open信号が出力されたスイッチング素子S(n、1)〜S(n、32)が非道通状態となるので、制御端子Ot1〜Ot32と、対応する制御端子Ob1〜Ob32間は同電位、又は異なる電位にすることが可能である。これにより、上述のように、制御端子Ot1〜Ot32、及び制御端子Ob1〜Ob32、のそれぞれには、第1容量信号(L)、第2容量信号(H)のいずれも印加可能となる。
このような処理を行うことにより、可変容量素子C(1、1)〜C(32、32)の合計容量値を32×32段階で変更可能となる。すなわち、素子群130は、1024ビットの可変容量を有する。
Claims (9)
- 第1制御端子と第2御端子との間に直列に接続され、前記第1制御端子と前記第2御端子とには複数種類の容量制御信号が供給可能である複数のスイッチング素子と、
前記複数のスイッチング素子それぞれの対応する一端に容量制御端子が接続される複数の可変容量素子と、
を備える半導体装置。 - 前記複数のスイッチング素子のうちの一つのスイッチング素子に非導通状態にする第1接続信号が供給され、残りのスイッチング素子に導通状態にする第2接続信号が供給される、請求項1に記載の半導体装置。
- 前記第1制御端子及び前記第2御端子の一方に前記可変容量素子を第1容量にする第1容量信号が供給され、他方に前記可変容量素子を前記第1容量と異なる第2容量にする第2容量信号が供給される、請求項2に記載の半導体装置。
- 前記複数のスイッチング素子と前記複数の可変容量素子は、前記可変容量素子と前記スイッチング素子を有する素子を列状に配置させた列状の複数素子で構成され、
前記列状の複数素子を複数並べ、前記素子を行列状に配置した請求項2又は3に記載の半導体装置。 - 対応する行にそれぞれ配置される複数のスイッチング素子の制御端子は共通の制御線に直列に接続され、前記制御線には前記第1接続信号又は前記第2接続信号が供給される、請求項4に記載の半導体装置。
- 前記可変容量素子は、NMOSトランジスタのゲート容量である、請求項1乃至5のいずれか一項に記載の半導体装置。
- 前記スイッチング素子は、トランジスタである、請求項1乃至6のいずれか一項に記載の半導体装置。
- 前記複数の可変容量素子は、並列に接続される、請求項1乃至7のいずれか一項に記載の半導体装置。
- 第1制御端子と第2御端子との間に直列に接続され、前記第1制御端子と前記第2御端子とには複数種類の容量制御信号が供給可能である複数のスイッチング素子と、前記複数のスイッチング素子それぞれの対応する一端に容量制御端子が接続される複数の可変容量素子と、を備える半導体装置の制御方法であって、
前記複数のスイッチング素子の少なくとも一つを非導通状態にする工程と、
前記第1制御端子及び前記第2御端子の一方に、前記可変容量素子を第1容量にする第1容量信号を供給し、他方に前記可変容量素子を前記第1容量と異なる第2容量にする第2容量信号を供給する工程と、
を備える半導体装置の制御方法。
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JP2020051592A JP7341933B2 (ja) | 2020-03-23 | 2020-03-23 | 半導体装置、デジタル制御発振器、周波数シンセサイザ、及び半導体装置の制御方法 |
CN202010869811.0A CN113437970A (zh) | 2020-03-23 | 2020-08-26 | 半导体装置、数字控制振荡器以及半导体装置的控制方法 |
US17/007,286 US11128257B1 (en) | 2020-03-23 | 2020-08-31 | Semiconductor device, digitally controlled oscillator, and control method of semiconductor device |
US17/459,768 US11476802B2 (en) | 2020-03-23 | 2021-08-27 | Semiconductor device, digitally controlled oscillator, and control method of semiconductor device |
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US20110057738A1 (en) * | 2009-09-10 | 2011-03-10 | Ward Titus | Digitally Controlled Oscillators |
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JP7341933B2 (ja) * | 2020-03-23 | 2023-09-11 | 株式会社東芝 | 半導体装置、デジタル制御発振器、周波数シンセサイザ、及び半導体装置の制御方法 |
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JP2009189002A (ja) * | 2008-02-01 | 2009-08-20 | Korea Advanced Inst Of Sci Technol | 誘導結合通信におけるインダクタンス補償方法及び装置 |
US20100001784A1 (en) * | 2008-07-07 | 2010-01-07 | Mohsen Moussavi | Adjustable electrical components formed from arrays of differential circuit elements |
US20110057738A1 (en) * | 2009-09-10 | 2011-03-10 | Ward Titus | Digitally Controlled Oscillators |
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