JP2010512722A - Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ - Google Patents
Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ Download PDFInfo
- Publication number
- JP2010512722A JP2010512722A JP2009541571A JP2009541571A JP2010512722A JP 2010512722 A JP2010512722 A JP 2010512722A JP 2009541571 A JP2009541571 A JP 2009541571A JP 2009541571 A JP2009541571 A JP 2009541571A JP 2010512722 A JP2010512722 A JP 2010512722A
- Authority
- JP
- Japan
- Prior art keywords
- programmable varactor
- varactor device
- binary weighted
- programmable
- varactors
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000013507 mapping Methods 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000010355 oscillation Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Images
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
-
- 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
- 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
- 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
- H03B5/08—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
- H03B5/1275—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 having further means for varying a parameter in dependence on the frequency
- H03B5/1278—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 having further means for varying a parameter in dependence on the frequency the parameter being an amplitude of a signal, e.g. maintaining a constant output amplitude over the frequency range
-
- 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
-
- 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
- H03B2200/005—Circuit elements of oscillators including measures to switch a capacitor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
【選択図】図1
Description
VCOは一般的に、粗同調周波数動作(coarse tune frequency operation)を介して粗同調され得る。プログラマブルバラクタ装置と共に、VCO利得は補償され得る。補償されたKVは、周波数及び粗同調コードに対して比較的(relatively)一定であり得る。しかしながら、粗同調周波数ステップΔfは、それでもf3に比例し得る。
Claims (29)
- 複数のバイナリ重み付けバラクタと、
プログラマブルバラクタ装置の実効容量を低減するため、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を選択的にディセーブルとする制御と
を備えるプログラマブルバラクタ装置。 - 前記制御は、それぞれが前記複数の重み付けバラクタの1つに対応する、複数の制御線を備える、請求項1のプログラマブルバラクタ装置。
- 前記制御は、バラクタ制御ビットを備える、請求項1のプログラマブルバラクタ装置。
- 前記制御は、ターゲット発振周波数に比例するカウンタ値に基づいて、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を、選択的にディセーブルにする、請求項1のプログラマブルバラクタ装置。
- 前記プログラマブルバラクタ装置を調整するバイナリ重み付け制御ビットを更に備える、請求項1のプログラマブルバラクタ装置。
- 論理制御ビットよりも少なくとも1ビット以上のビット数である物理制御ビット、を備える粗同調キャパシタバンクを備える、請求項1のプログラマブルバラクタ装置。
- 前記粗同調キャパシタバンクは、7ビットの物理制御ビットを備える、請求項6のプログラマブルバラクタ装置。
- 前記粗同調キャパシタバンクは、8ビットの物理制御ビットを備える、請求項6のプログラマブルバラクタ装置。
- 複数のバイナリ重み付けバラクタと、
プログラマブルバラクタ装置の実効容量を低減するために、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を選択的にディセーブルとすることにより、前記複数のバイナリ重み付けバラクタを制御する複数のビットと
を備えるプログラマブルバラクタ装置。 - 周波数における信号を出力する信号出力と、
前記信号の前記周波数に作用する入力チューニング電圧と、
利得と、
プログラマブルバラクタ装置と
を備え、
前記プログラマブルバラクタ装置は、
複数のバイナリ重み付けバラクタと、
前記周波数の値にかかわらず前記利得の値を実質的に一定に維持するために、それぞれが前記複数のバイナリ重み付けバラクタの1つに対応し、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を選択的にディセーブルとする複数の制御線と
を備え、前記複数の制御線の1つまたはそれ以上は、前記周波数に比例するカウンタ値に基づいて、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を選択的にディセーブルとする、電圧制御発振器。 - 前記複数の制御線を制御するバラクタビットを備える制御を更に備える、請求項10の電圧制御発振器。
- 前記プログラマブルバラクタ装置を調整するバイナリ重み付け制御ビットを更に備える、請求項10の電圧制御発振器。
- 論理制御ビットよりも少なくとも1ビット以上のビット数である物理制御ビット、を備える粗同調キャパシタバンクを備える、請求項10の電圧制御発振器。
- イネーブルに固定されたバラクタと、
複数のバイナリ重み付けバラクタと、
プログラマブルバラクタ装置の実効容量を低減するために、それぞれが前記複数のバイナリ重み付けバラクタの1つに対応し、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上を選択的にディセーブルとする複数の制御線と、
ターゲット発振周波数に比例するカウンタ値に基づいて、前記複数の制御線を制御するバラクタビットと
を備えるプログラマブルバラクタ装置。 - 前記プログラマブルバラクタ装置は、DC結合によりタンク回路に直接接続される、請求項14のプログラマブルバラクタ装置。
- 前記プログラマブルバラクタ装置は、AC結合により、1つまたはそれ以上の結合キャパシタを介してタンク回路に接続される、請求項14のプログラマブルバラクタ装置。
- 前記複数のバイナリ重み付けバラクタは、3つのバイナリ重み付けバラクタを備える、請求項14のプログラマブルバラクタ装置。
- 前記複数の制御線は、3つの制御線を備える、請求項14のプログラマブルバラクタ装置。
- 前記プログラマブルバラクタ装置を調整するバイナリ重み付け制御ビットを更に備える、請求項14のプログラマブルバラクタ装置。
- 論理制御ビットよりも少なくとも1ビット以上のビット数である物理制御ビット、を備える粗同調キャパシタバンクを備える、請求項14のプログラマブルバラクタ装置。
- 複数のバラクタを設ける手段と、
プログラマブルバラクタ装置の実効容量を変化させるため、前記複数のバラクタを制御する手段と
を備えるプログラマブルバラクタ装置。 - 前記複数のバラクタを制御する手段は、ターゲット発振周波数に比例するカウンタ値に基づいて、前記複数のバラクタを制御する手段を備える、請求項21のプログラマブルバラクタ装置。
- 粗同調キャパシタバンクを粗同調マッピングする手段を更に備える、請求項21のプログラマブルバラクタ装置。
- 複数のバイナリ重み付けバラクタを設けることと、
プログラマブルバラクタ装置の実効容量を低減するため、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上をディセーブルとすることと
を備える、プログラマブルバラクタ装置の実効容量を変化させる方法。 - 前記ディセーブルとすることは、ターゲット発振周波数に比例するカウンタ値に基づいて、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上をディセーブルとすることを備える、請求項24記載のプログラマブルバラクタ装置の実効容量を変化させる方法。
- 粗同調キャパシタバンクを粗同調マッピングすることを更に備える、請求項24のプログラマブルバラクタ装置の実効容量を変化させる方法。
- 複数のバイナリ重み付けバラクタを設けるステップと、
プログラマブルバラクタ装置の実効容量を低減するため、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上をディセーブルとするステップと
を備える、プログラマブルバラクタ装置の実効容量を変化させる方法。 - 前記ディセーブルとするステップは、ターゲット発振周波数に比例するカウンタ値に基づいて、前記複数のバイナリ重み付けバラクタの1つまたはそれ以上をディセーブルとするステップを備える、請求項27記載のプログラマブルバラクタ装置の実効容量を変化させる方法。
- 粗同調キャパシタバンクを粗同調マッピングするステップを更に備える、請求項27のプログラマブルバラクタ装置の実効容量を変化させる方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86968206P | 2006-12-12 | 2006-12-12 | |
US60/869,682 | 2006-12-12 | ||
US11/835,499 | 2007-08-08 | ||
US11/835,499 US7612626B2 (en) | 2006-12-12 | 2007-08-08 | Programmable varactor for VCO gain compensation and phase noise reduction |
PCT/US2007/087320 WO2008074000A1 (en) | 2006-12-12 | 2007-12-12 | Programmable varactor for vco gain compensation and phase noise reduction |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012101253A Division JP5710544B2 (ja) | 2006-12-12 | 2012-04-26 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010512722A true JP2010512722A (ja) | 2010-04-22 |
JP5591539B2 JP5591539B2 (ja) | 2014-09-17 |
Family
ID=39284107
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009541571A Expired - Fee Related JP5591539B2 (ja) | 2006-12-12 | 2007-12-12 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
JP2012101253A Expired - Fee Related JP5710544B2 (ja) | 2006-12-12 | 2012-04-26 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
JP2014231802A Withdrawn JP2015109645A (ja) | 2006-12-12 | 2014-11-14 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012101253A Expired - Fee Related JP5710544B2 (ja) | 2006-12-12 | 2012-04-26 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
JP2014231802A Withdrawn JP2015109645A (ja) | 2006-12-12 | 2014-11-14 | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
Country Status (7)
Country | Link |
---|---|
US (1) | US7612626B2 (ja) |
EP (1) | EP2100377A1 (ja) |
JP (3) | JP5591539B2 (ja) |
KR (1) | KR101131755B1 (ja) |
CN (1) | CN101558566B (ja) |
TW (1) | TWI406495B (ja) |
WO (1) | WO2008074000A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012191630A (ja) * | 2006-12-12 | 2012-10-04 | Qualcomm Inc | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
JP2012199761A (ja) * | 2011-03-22 | 2012-10-18 | Nec Corp | 位相同期回路およびその制御方法 |
JP2013546228A (ja) * | 2010-10-05 | 2013-12-26 | クゥアルコム・インコーポレイテッド | 広帯域温度補償共振器および広帯域vco |
US10554173B2 (en) | 2015-11-18 | 2020-02-04 | Socionext Inc. | Voltage controlled oscillator and PLL circuit |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7498894B1 (en) | 2008-09-04 | 2009-03-03 | International Business Machines Corporation | Varactor system having real or apparent low capacitance density |
US8749316B2 (en) * | 2009-06-23 | 2014-06-10 | Qualcomm Incorporated | Programmable varactor and methods of operation thereof |
US8143962B1 (en) * | 2009-09-18 | 2012-03-27 | Altera Corporation | Tuning circuit with a wide tuning range |
US8275336B2 (en) * | 2010-06-23 | 2012-09-25 | Richwave Technology Corp. | Apparatus and method for digitally controlling capacitance |
KR101873300B1 (ko) | 2012-01-30 | 2018-07-02 | 삼성전자주식회사 | 가변 커패시터를 이용하는 전압 제어 발진기 및 이를 이용하는 위상고정루프 |
CN103580685A (zh) * | 2012-07-31 | 2014-02-12 | 三星电机株式会社 | 用于数字控制振荡器的控制电路和装置 |
CN103675394B (zh) * | 2012-08-31 | 2015-11-25 | 紘康科技股份有限公司 | 用于交流电压测量并具有可编程化电容阵列的补偿电路 |
EP3343773B1 (en) * | 2016-12-29 | 2022-06-01 | Nxp B.V. | Chirp generator using a pll |
EP3499727B1 (en) | 2017-12-12 | 2023-10-25 | NXP USA, Inc. | Voltage-controlled-oscillator circuit |
DE102018107983A1 (de) | 2018-04-05 | 2019-10-10 | Silicon Radar GmbH | Spannungsgesteuerter Breitband-Oszillator |
EP3813252A1 (en) | 2019-10-24 | 2021-04-28 | Nxp B.V. | Variable reactance apparatus for dynamic gain switching of tunable oscillator |
KR20220135269A (ko) | 2021-03-29 | 2022-10-07 | 삼성전자주식회사 | 가변 커패시터 회로 및 이를 포함하는 디지털 제어 오실레이터 |
US20230124141A1 (en) * | 2021-10-20 | 2023-04-20 | Qualcomm Incorporated | Iterative phase-noise cancellation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5648744A (en) * | 1995-12-22 | 1997-07-15 | Microtune, Inc. | System and method for voltage controlled oscillator automatic band selection |
US6133797A (en) * | 1999-07-30 | 2000-10-17 | Motorola, Inc. | Self calibrating VCO correction circuit and method of operation |
JP2001320235A (ja) * | 2000-05-09 | 2001-11-16 | Matsushita Electric Ind Co Ltd | 電圧制御発振器 |
JP2004159222A (ja) * | 2002-11-08 | 2004-06-03 | Renesas Technology Corp | 発振回路を内蔵した半導体集積回路および通信用半導体集積回路 |
US20050184812A1 (en) * | 2004-02-20 | 2005-08-25 | Samsung Electronics Co., Ltd. | Capacitor bank and voltage controlled oscillator having the same |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5739730A (en) * | 1995-12-22 | 1998-04-14 | Microtune, Inc. | Voltage controlled oscillator band switching technique |
US5739370A (en) * | 1997-04-02 | 1998-04-14 | General Electric Company | Process the production of octaphenylcyclotetrasiloxane |
US6211745B1 (en) * | 1999-05-03 | 2001-04-03 | Silicon Wave, Inc. | Method and apparatus for digitally controlling the capacitance of an integrated circuit device using mos-field effect transistors |
US6445257B1 (en) * | 1999-11-23 | 2002-09-03 | Micro Linear Corporation | Fuse-trimmed tank circuit for an integrated voltage-controlled oscillator |
GB0127537D0 (en) * | 2001-11-16 | 2002-01-09 | Hitachi Ltd | A communication semiconductor integrated circuit device and a wireless communication system |
US6825785B1 (en) | 2002-02-28 | 2004-11-30 | Silicon Laboratories, Inc. | Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling a sub-varactor array of a voltage controlled oscillator |
JP2003324316A (ja) * | 2002-05-08 | 2003-11-14 | Toshiba Corp | 電圧制御発振器 |
JP2004015387A (ja) * | 2002-06-06 | 2004-01-15 | Matsushita Electric Ind Co Ltd | 電圧制御型発振器及び周波数シンセサイザ |
JP4649818B2 (ja) * | 2003-02-21 | 2011-03-16 | 富士通株式会社 | 電圧制御発振器及びpll回路 |
US7042253B2 (en) | 2004-05-24 | 2006-05-09 | Industrial Technology Research Institute (Itri) | Self-calibrating, fast-locking frequency synthesizer |
JP2006033803A (ja) * | 2004-06-15 | 2006-02-02 | Matsushita Electric Ind Co Ltd | 電圧制御発振器、ならびにそれを用いたpll回路および無線通信機器 |
US7221234B2 (en) | 2005-03-18 | 2007-05-22 | Broadcom Corporation | VCO with switchable varactor for low KVCO variation |
US7782151B2 (en) | 2005-05-25 | 2010-08-24 | Integrated Device Technology Inc. | VCO digital range selection |
US7612626B2 (en) * | 2006-12-12 | 2009-11-03 | Qualcomm, Incorporated | Programmable varactor for VCO gain compensation and phase noise reduction |
-
2007
- 2007-08-08 US US11/835,499 patent/US7612626B2/en active Active
- 2007-12-12 WO PCT/US2007/087320 patent/WO2008074000A1/en active Application Filing
- 2007-12-12 TW TW096147592A patent/TWI406495B/zh active
- 2007-12-12 EP EP07869188A patent/EP2100377A1/en not_active Ceased
- 2007-12-12 CN CN2007800457674A patent/CN101558566B/zh active Active
- 2007-12-12 KR KR1020097012040A patent/KR101131755B1/ko active IP Right Grant
- 2007-12-12 JP JP2009541571A patent/JP5591539B2/ja not_active Expired - Fee Related
-
2012
- 2012-04-26 JP JP2012101253A patent/JP5710544B2/ja not_active Expired - Fee Related
-
2014
- 2014-11-14 JP JP2014231802A patent/JP2015109645A/ja not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5648744A (en) * | 1995-12-22 | 1997-07-15 | Microtune, Inc. | System and method for voltage controlled oscillator automatic band selection |
US6133797A (en) * | 1999-07-30 | 2000-10-17 | Motorola, Inc. | Self calibrating VCO correction circuit and method of operation |
JP2001320235A (ja) * | 2000-05-09 | 2001-11-16 | Matsushita Electric Ind Co Ltd | 電圧制御発振器 |
JP2004159222A (ja) * | 2002-11-08 | 2004-06-03 | Renesas Technology Corp | 発振回路を内蔵した半導体集積回路および通信用半導体集積回路 |
US20050184812A1 (en) * | 2004-02-20 | 2005-08-25 | Samsung Electronics Co., Ltd. | Capacitor bank and voltage controlled oscillator having the same |
Non-Patent Citations (1)
Title |
---|
JPN6011021797; Pao-Lung Chen; et al: 'A portable digitally controlled oscillator using novel varactors' IEEE Transactions on Circuits and Systems II: Express Briefs Volume:52,Issue:5, 200505, pp.233-237 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012191630A (ja) * | 2006-12-12 | 2012-10-04 | Qualcomm Inc | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ |
JP2013546228A (ja) * | 2010-10-05 | 2013-12-26 | クゥアルコム・インコーポレイテッド | 広帯域温度補償共振器および広帯域vco |
JP2012199761A (ja) * | 2011-03-22 | 2012-10-18 | Nec Corp | 位相同期回路およびその制御方法 |
US10554173B2 (en) | 2015-11-18 | 2020-02-04 | Socionext Inc. | Voltage controlled oscillator and PLL circuit |
Also Published As
Publication number | Publication date |
---|---|
US20080136544A1 (en) | 2008-06-12 |
JP5710544B2 (ja) | 2015-04-30 |
KR101131755B1 (ko) | 2012-04-06 |
CN101558566B (zh) | 2013-03-13 |
WO2008074000A1 (en) | 2008-06-19 |
US7612626B2 (en) | 2009-11-03 |
JP2012191630A (ja) | 2012-10-04 |
TW200832887A (en) | 2008-08-01 |
TWI406495B (zh) | 2013-08-21 |
KR20090079992A (ko) | 2009-07-22 |
EP2100377A1 (en) | 2009-09-16 |
CN101558566A (zh) | 2009-10-14 |
JP2015109645A (ja) | 2015-06-11 |
JP5591539B2 (ja) | 2014-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5591539B2 (ja) | Vco利得補償及び位相ノイズ低減のためのプログラマブルバラクタ | |
US8253506B2 (en) | Wideband temperature compensated resonator and wideband VCO | |
US8149065B1 (en) | Low KVCO phase-locked loop with large frequency drift handling capability | |
US7855610B2 (en) | VCO capacitor bank trimming and calibration | |
EP1982410B1 (en) | Oscillator gain equalization | |
US7760040B2 (en) | Method of eliminating temperature induced band switching in ultra wideband voltage controlled oscillator | |
JP2010501155A (ja) | 多標準多周波数合成器における連続利得補償および高速帯域選択 | |
US9660578B2 (en) | Electronic device with capacitor bank linearization and a linearization method | |
WO2013060608A2 (en) | Temperature compensation in a pll | |
JP2010252289A (ja) | 電圧制御発振器のための補償回路 | |
JP2004015387A (ja) | 電圧制御型発振器及び周波数シンセサイザ | |
JP2006033803A (ja) | 電圧制御発振器、ならびにそれを用いたpll回路および無線通信機器 | |
US20110254632A1 (en) | Pll frequency synthesizer | |
US20140218124A1 (en) | Apparatus and method for generating an oscillating output signal | |
US20070146082A1 (en) | Frequency synthesizer, wireless communications device, and control method | |
US20090206894A1 (en) | Phase-Locked Loop with Adaptive Performance | |
JP2017060088A (ja) | 半導体装置、無線通信装置及び半導体装置の制御方法 | |
US10826432B2 (en) | Quadrature oscillator | |
WO2007033120A1 (en) | Analog varactor | |
JP2005117428A (ja) | 電圧制御発振器、pll回路、通信機器、および電圧制御発振方法。 | |
US11637528B1 (en) | Wide frequency range voltage controlled oscillators | |
Liang et al. | A 12.3–18.5-GHz Single-Core Oscillator Using a Dual-Mode Variable Inductor With a Tunable Self-Resonant Frequency Technique | |
EP3580848A1 (en) | Electronic circuit with tuning circuit | |
Soleiman et al. | A self-calibration technique for wide tuning range PLLs | |
KR20100016700A (ko) | 광대역 발진주파수 튜닝 장치 및 그 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20111107 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111129 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120229 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120307 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120329 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120405 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120426 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20120626 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121026 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20121105 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20130315 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130528 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130531 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130726 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130731 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20140502 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20140512 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140603 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140730 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5591539 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |