公开(公告)号：JP2008206198A

公开(公告)日：2008-09-04

申请号：JP2008124176

申请日：2008-05-12

Applicant: Skyworks Solutions Inc ,  スカイワークス ソリューションズ,インコーポレイテッドSkyworks Solutions,Inc.

Inventor： DAMGAARD MORTEN ,  DOMINO WILLIAM J ,  MAGOON RAHUL ,  MOLNAR ALYOSHA C ,  ZACHAN JEFF

IPC: H03L7/099 ,  H03B1/00 ,  H03B5/08 ,  H03L5/00 ,  H03L7/087 ,  H03L7/10 ,  H03L7/113 ,  H03L7/187 ,  H04B1/40

CPC classification number: H03L7/099 ,  H03B2201/025 ,  H03B2201/0291 ,  H03J2200/10 ,  H03L5/00 ,  H03L7/087 ,  H03L7/113

Abstract: PROBLEM TO BE SOLVED: To provide a system for controlling the frequency of the output signal of a controllable oscillator (202) in a frequency synthesizer (200). SOLUTION: One such system comprises a controllable oscillator (202) and a frequency control circuit (208). The controllable oscillator (202) is configured to generate an output signal that has a predetermined frequency. The controllable oscillator (202) is also configured with a plurality of operational states that are controlled by the frequency control circuit (208). Each operational state of the controllable oscillator (202) defines a distinct frequency for the output signal of the controllable oscillator (202). The frequency control circuit (208) receives the output signal of the controllable oscillator (202) and determines the distinct frequency for the output signal that best approximates the predetermined frequency. The frequency control circuit (208) may also provide a control signal to the controllable oscillator (202) that is configured to change the controllable oscillator (202) to the operational state corresponding to the distinct frequency that best approximates the predetermined frequency. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于控制频率合成器（200）中的可控振荡器（202）的输出信号的频率的系统。 解决方案：一个这样的系统包括可控振荡器（202）和频率控制电路（208）。 可控振荡器（202）被配置为产生具有预定频率的输出信号。 可控振荡器（202）还配置有由频率控制电路（208）控制的多个操作状态。 可控振荡器（202）的每个操作状态为可控振荡器（202）的输出信号定义不同的频率。 频率控制电路（208）接收可控振荡器（202）的输出信号，并确定最接近预定频率的输出信号的不同频率。 频率控制电路（208）还可以向可控振荡器（202）提供控制信号，该控制信号被配置为将可控振荡器（202）改变到对应于最接近预定频率的不同频率的操作状态。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008167408A

公开(公告)日：2008-07-17

申请号：JP2007269544

申请日：2007-10-16

Applicant: Fujitsu Media Device Kk ,  富士通メディアデバイス株式会社

Inventor： NUMATA TOSHIMASA ,  PUEL ALEJANDRO

IPC: H03B5/02 ,  H03B5/12

CPC classification number: H03B25/00 ,  H03B28/00 ,  H03B2201/0208 ,  H03B2201/025

Abstract: PROBLEM TO BE SOLVED: To provide an oscillator suppressing variations in electric power and C/N ratio of output signals by oscillation frequencies.
SOLUTION: The oscillator includes: oscillation units 11 to 1n outputting oscillation signals of different frequencies; a transmission line 15 to which outputs of the oscillation units 11 to 1n are connected, the transmission line having a characteristic impedance corresponding to an output impedance of an output terminal Tout; and a low-pass filter 18 connected between the transmission line 15 and the output terminal.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供通过振荡频率抑制输出信号的电功率和C / N比的振荡的振荡器。 解决方案：振荡器包括：振荡单元11至1n输出不同频率的振荡信号; 连接振荡单元11至1n的输出的传输线15，传输线具有与输出端Tout的输出阻抗相对应的特性阻抗; 以及连接在传输线15和输出端之间的低通滤波器18。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006279392A

公开(公告)日：2006-10-12

申请号：JP2005093839

申请日：2005-03-29

Applicant: Renesas Technology Corp ,  株式会社ルネサステクノロジ

Inventor： SATAKE KUNITO ,  OSAWA HIROTAKA ,  IKUTA ISAO ,  YAMAMOTO SATORU

IPC: H03L7/10 ,  H03L7/099 ,  H03L7/187 ,  H04B1/26 ,  H04B1/40

CPC classification number: H03L7/107 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B2201/025 ,  H03J2200/10 ,  H03L7/07 ,  H03L7/099 ,  H03L7/183

Abstract: PROBLEM TO BE SOLVED: To provide a high-frequency IC which is equipped with a built-in PLL circuit that contains an oscillator which generates local oscillation signals of prescribed frequency and is hardly unlocked even if VCO varies in oscillation frequency with a temperature change. SOLUTION: The built-in PLL circuit is equipped with the VCO 11 where an oscillation frequency band is changeable, a variable dividing circuit 12, a phase comparison circuit 15, and an loop filter 17. A switch which applies one of two or more prescribed stationary voltages to the VCO 11 in an open loop state where the loop filter 17 is isolated from the VCO 11, a judging circuit 22 which judges whether the output of the variable dividing circuit 12 is slower or faster in phase than the reference signals of the prescribed frequency, and an automatic band switching circuit 23 which generates signals of switching the frequency band of the VCO 11 resting on the output of the judging circuit 22 are provided. An optimal frequency band is found by switching the frequency band of the VCO 11 through a bisection inquiry method, and a stationary voltage applied to the VCO 11 is switched to an optimal voltage through the bisection inquiry method, and the optimal voltage is applied to the VCO 11 to lock the PLL loop. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种配备有内置PLL电路的高频IC，该PLL电路包含产生规定频率的本地振荡信号的振荡器，并且即使VCO的振荡频率变化也难以解锁 温度变化。

解决方案：内置PLL电路配备有振荡频带可变的VCO 11，可变分频电路12，相位比较电路15和环路滤波器17.应用两个 或更多的规定的静止电压到环路滤波器17与VCO 11隔离的开环状态的VCO11;判断电路22，其判断可变分频电路12的输出是否比基准电压慢 提供规定频率的信号，以及自动频带切换电路23，其产生切换停止在判定电路22的输出端的VCO111的频带的信号。 通过二等分查询方法切换VCO 11的频带，找出最佳频带，通过二等分查询方法将施加到VCO11的稳定电压切换到最佳电压，并将最佳电压施加到 VCO 11锁定PLL环路。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2004015387A

公开(公告)日：2004-01-15

申请号：JP2002165536

申请日：2002-06-06

Applicant: Matsushita Electric Ind Co Ltd ,  松下電器産業株式会社

Inventor： SAWADA AKIHIRO

IPC: H03B1/00 ,  H03B5/12 ,  H03L7/099

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/1253 ,  H03B5/1265 ,  H03B2201/025

Abstract: PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator for widely securing an oscillated frequency band and decreasing a variance in a VCO gain at the entire oscillated frequency band.
SOLUTION: A variable capacitor circuit group 3 is provided with a second variable capacitor circuit 32 and a third variable capacitor circuit 33 having fixed capacitive elements Cf0, Cf1, Cf2 in addition to a first variable capacitor circuit 31 having a first variable capacitor Cv1 whose capacitance is continuously varied with a frequency control signal CONT. The second variable capacitor circuit 32 includes: second variable capacitors Cv20, Cv21, Cv22 whose capacitance is continuously changed in response to the frequency control signal CONT; and switch circuits S20 to S22 for selecting the second variable capacitors in response to frequency band control signals BIT0, BIT1. The oscillated frequency is changed by using only the first variable capacitor Cv1 for a high oscillated frequency band, and the oscillated frequency band is changed by using also the second variable capacitors Cv20 to Cv22 as the oscillated frequency is lowered toward a low oscillated frequency band.
COPYRIGHT: (C)2004,JPO

公开(公告)号：WO2012098399A2

公开(公告)日：2012-07-26

申请号：PCT/GB2012/050110

申请日：2012-01-19

Applicant: XNORDIC SEMICONDUCTOR ASA ,  BRUSET, Ola ,  VEDAL, Tor Øyvind ,  WILSON, Timothy James

Inventor： BRUSET, Ola ,  VEDAL, Tor Øyvind

IPC: H03K5/135 ,  G06F1/08

CPC classification number: H03L7/24 ,  G06F1/08 ,  H03B5/20 ,  H03B5/32 ,  H03B2201/025 ,  H03K5/135

Abstract: An integrated oscillator circuit comprises an oscillator configured to be switched between a first frequency and a second frequency. A switching circuit receives an input representing a target frequency and switches the oscillator between the first and second frequencies at intervals determined by the input, so as to cause the average output frequency of the oscillator to approximate the target frequency.

Abstract translation: 集成振荡器电路包括配置成在第一频率和第二频率之间切换的振荡器。 开关电路接收表示目标频率的输入，并且以由输入确定的间隔在第一和第二频率之间切换振荡器，以便使振荡器的平均输出频率接近目标频率。

公开(公告)号：WO2009101015A1

公开(公告)日：2009-08-20

申请号：PCT/EP2009/051283

申请日：2009-02-04

Applicant: NOKIA CORPORATION ,  PELTONEN, Janne, Olavi ,  VILHONEN, Sami, Tapani

Inventor： PELTONEN, Janne, Olavi ,  VILHONEN, Sami, Tapani

IPC: H03B5/12 ,  H03B5/24 ,  H03L7/099 ,  H03K3/011

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1265 ,  H03B2201/025 ,  H03J2200/10 ,  H03K3/011 ,  H03L7/099 ,  H03L2207/06

Abstract: A digitally controlled oscillator comprising: an oscillator core configured to output an adjustable frequency output; and an oscillator tuner comprising at least one switchable impedance stage configured to control the oscillator core frequency output.

Abstract translation: 一种数字控制振荡器，包括：振荡器芯，被配置为输出可调频率输出; 以及振荡器调谐器，包括被配置为控制振荡器核频率输出的至少一个可切换阻抗级。

公开(公告)号：WO2009023019A1

公开(公告)日：2009-02-19

申请号：PCT/US2007/075691

申请日：2007-08-10

Applicant: NANOAMP SOLUTIONS, INC. (CAYMAN) ,  SHEN, David H. ,  SHEN, Ann P.

Inventor： SHEN, David H. ,  SHEN, Ann P.

IPC: H03B5/32

CPC classification number: H03B5/368 ,  H03B2200/005 ,  H03B2201/0208 ,  H03B2201/025 ,  H03J1/0008 ,  H03J2200/10

Abstract: Embodiments feature techniques and systems for analog and digital tuning of crystal oscillators. In one aspect, some implementations feature a method for tuning a frequency of a crystal oscillator that can include adjusting the tuning frequency of the crystal oscillator from a nominal frequency via a switched-capacitor frequency tuning circuit, the switched-capacitor frequency tuning circuit can have switchable sections to adjust the tuning of the crystal oscillator. The method can include controlling an analog control input that is coupled to a varactor within each of the switchable sections, where each of the switchable sections can include a fixed capacitor in series with the varactor and a switch. The method can involve controlling a digital control input, where the digital control input can electrically connect or disconnect one or more of the switchable sections from the crystal. There can be independent control between the digital and analog tuning mechanisms.

Abstract translation: 实施例用于晶体振荡器的模拟和数字调谐的技术和系统。 一方面，一些实施方式的特征在于一种用于调谐晶体振荡器的频率的方法，该方法可以包括通过开关电容器频率调谐电路从标称频率调整晶体振荡器的调谐频率，开关电容器频率调谐电路可以具有 可切换部分来调节晶体振荡器的调谐。 该方法可以包括控制耦合到每个可切换部分内的变容二极管的模拟控制输入，其中每个可切换部分可以包括与变容二极管串联的固定电容器和开关。 该方法可以涉及控制数字控制输入，其中数字控制输入可以将一个或多个可切换部分与晶体电连接或断开。 数字和模拟调谐机制之间可以独立控制。

公开(公告)号：WO2007065264A1

公开(公告)日：2007-06-14

申请号：PCT/CA2006/001995

申请日：2006-12-08

Applicant: SIRIFIC WIRELESS CORPORATION ,  BELLAOUAR, Abdellatif

Inventor： BELLAOUAR, Abdellatif

IPC: H01L45/00 ,  H03B5/08

CPC classification number: H03J3/20 ,  H03B5/1243 ,  H03B2201/025 ,  H03J2200/10

Abstract: A method of selecting fabrication parameters for an on-chip inductor of an integrated circuit. The integrated circuit includes a capacitor fabricated prior to the inductor. The capacitance of the capacitor is measured and, based on the measured capacitance and on a desired frequency range, a suitable inductor is fabricated. The integrated circuit may include a voltage controlled oscillator (VCO), and the selection of the fabrication parameters of the inductor includes the selection of a lithography mask for the fabrication of the inductor for maximizing yield across the wafer. Therefore, the integrated circuit can have exactly one VCO for covering the desired frequency range, as opposed to at least two VCO's with overlapping frequency ranges, thereby saving significant silicon area and increasing the yield per wafer.

Abstract translation: 选择集成电路的片上电感器的制造参数的方法。 集成电路包括在电感器之前制造的电容器。 测量电容器的电容，并根据测得的电容和所需的频率范围，制造合适的电感器。 集成电路可以包括压控振荡器（VCO），并且电感器的制造参数的选择包括选择用于制造电感器的光刻掩模，以最大限度地提高晶片的产量。 因此，与具有重叠频率范围的至少两个VCO相反，集成电路可以具有恰好一个用于覆盖期望频率范围的VCO，从而节省显着的硅面积并提高每个晶片的产量。

公开(公告)号：WO2006102184A1

公开(公告)日：2006-09-28

申请号：PCT/US2006/009922

申请日：2006-03-20

Applicant: MOBIUS MICROSYSTEMS, INC. ,  MCCORQUODALE, Michael, Shannon ,  PERNIA, Scott, Michael ,  KUBBA, Sundus ,  O'DAY, Justin ,  CARICHNER, Gordon

Inventor： MCCORQUODALE, Michael, Shannon ,  PERNIA, Scott, Michael ,  KUBBA, Sundus ,  O'DAY, Justin ,  CARICHNER, Gordon

IPC: H03B5/12 ,  H03L1/00

CPC classification number: H03L1/022 ,  H03B5/06 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03B2201/025 ,  H03L3/00 ,  H03L7/08 ,  H03L7/0812 ,  H03L7/099

Abstract: A discrete clock generator (100, 200, 300) and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller (3015), a stable resonant frequency (fo), provided to other circuitry such as a processor or controller (1000, 1010, 1074, 1218, 1219, 1204, 3040). Frequency stability is provided over variations in a selected parameter such as temperatu and fabrication process variations. A sensor to provide a signal in response to at least one parameter.

Abstract translation: 使用LC振荡器拓扑的离散时钟发生器（100,200,300）和/或定时和频率参考，具有频率控制器（3015），稳定谐振频率（fo），提供给诸如处理器之类的其它电路 或控制器（1000,1010,1047,1218,1219,1204,3040）。 提供了频率稳定性，例如选择的参数（如温度和制造工艺变化）的变化。 用于响应于至少一个参数提供信号的传感器。

公开(公告)号：WO2006020873A1

公开(公告)日：2006-02-23

申请号：PCT/US2005/028748

申请日：2005-08-10

Applicant: QUALCOMM INCORPORATED ,  CABANILLAS, Jose

Inventor： CABANILLAS, Jose

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1218 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1296 ,  H03B2200/0048 ,  H03B2201/025

Abstract: A multi-band VCO employs a coupled-inductor based resonator having ports. Each port has an inductor and at least one capacitor. The N inductors for the N ports are magnetically coupled. The inductors/ports may be selectively enabled and disabled to allow the VCO to operate at different frequency bands. The capacitor(s) for each port may include one or more fixed capacitors, one or more variable capacitors (varactors), one or more switchable capacitors, or any combination of fixed, variable, and switchable capacitors. The switchable capacitors (if any) in the enabled ports may be selectively enabled and disabled to vary the VCO oscillation frequency. The varactors (if any) in the enabled ports can vary the oscillation frequency to lock the VCO to a desired frequency. The multi-band VCO may be implemented with various oscillator topologies and can replace multiple single-band VCOs.

Abstract translation: 多频带VCO采用具有端口的基于耦合电感器的谐振器。 每个端口都有一个电感和至少一个电容。 N个端口的N个电感器是磁耦合的。 电感器/端口可以被选择性地使能和禁止，以允许VCO在不同的频带上操作。 每个端口的电容器可以包括一个或多个固定电容器，一个或多个可变电容器（可变电抗器），一个或多个可切换电容器，或固定，可变和可切换电容器的任何组合。 使能端口中的可切换电容器（如果有的话）可以被选择性地使能和禁止以改变VCO振荡频率。 使能端口中的变容二极管（如果有）可以改变振荡频率，将VCO锁定到所需的频率。 多频带VCO可以用各种振荡器拓扑来实现，并且可以替代多个单频带VCO。