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    Positive Logic Digitally Tunable Capacitor
    2.
    发明申请
    Positive Logic Digitally Tunable Capacitor 审中-公开

    公开(公告)号：US20180159511A1

    公开(公告)日：2018-06-07

    申请号：US15871643

    申请日：2018-01-15

    Applicant: Peregrine Semiconductor Corporation

    Inventor： Tero Tapio Ranta

    IPC: H03J3/16 ,  H03K17/687

    CPC classification number: H03J3/16 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J3/20 ,  H03J5/24 ,  H03K17/687

    Abstract: Methods and devices providing Positive Logic biasing schemes for use in a digitally tuning capacitor in an integrated circuit device are described. The described methods can be used in integrated circuits with stringent requirements in terms of switching time, power handling, noise sensitivity and power consumption. The described devices include DC blocking capacitors arranged in series with stacked switches coupled to RF nodes. The stacked FET switches receive non-negative supply voltages through their drains and gates during the ON and OFF states to adjust the capacitance between the two nodes.

    LOW POWER WIDE TUNING RANGE OSCILLATOR
    6.
    发明申请
    LOW POWER WIDE TUNING RANGE OSCILLATOR 有权
    低功率调谐范围振荡器

    公开(公告)号：US20160036382A1

    公开(公告)日：2016-02-04

    申请号：US14447478

    申请日：2014-07-30

    Applicant: Texas Instruments Incorporated

    Inventor： Sudipto Chakraborty

    IPC: H03B5/12

    CPC classification number: H03B5/1215 ,  H03B1/00 ,  H03B5/08 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/125 ,  H03B5/1262 ,  H03B5/1296 ,  H03B2200/0082 ,  H03B2201/0266

    Abstract: A wide tuning range oscillator system uses multiple active cores with cross-coupled transistors and multiple tapped inductors having windings that can be connected to circuit nodes. These active cores are connected to a pair of symmetric tapping points and are switched ON/OFF by biasing elements. Biasing schemes and the topology of the individual cross-coupled cores may be different from each other. The tapping points are symmetrically arranged around the center point of the inductor. One or more of the active cores may be enabled for tuning the center frequency of the oscillator system.

    Abstract translation: 宽调谐范围振荡器系统使用具有交叉耦合晶体管的多个有源核心和具有可以连接到电路节点的绕组的多个抽头电感器。 这些活性芯连接到一对对称的攻丝点，并通过偏置元件接通/断开。 各个交叉耦合核心的偏置方案和拓扑可能彼此不同。 攻丝点围绕电感器的中心点对称排列。 可以使能一个或多个有源内核来调谐振荡器系统的中心频率。

    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND MANUFACTURING METHOD OF ELECTRONIC DEVICE USING THE SAME
    7.
    发明申请
    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND MANUFACTURING METHOD OF ELECTRONIC DEVICE USING THE SAME 审中-公开
    半导体集成电路装置及使用该电子装置的电子装置的制造方法

    公开(公告)号：US20150365049A1

    公开(公告)日：2015-12-17

    申请号：US14738066

    申请日：2015-06-12

    Applicant: Renesas Electronics Corporation

    Inventor： Osamu OZAWA ,  Soshiro NISHIOKA ,  Takashi NAKAMURA ,  Susumu ABE ,  Kazuya TANIGUCHI ,  Masaaki TANIMURA

    IPC: H03B5/36 ,  H03K3/03

    CPC classification number: H03B5/36 ,  G01R31/2824 ,  H03B5/366 ,  H03B2200/005 ,  H03B2201/0266 ,  H03L7/00

    Abstract: A semiconductor integrated circuit device having a function to perform oscillation in combination with a crystal oscillator, includes: a first impedance element including a first external terminal coupled to one terminal of the crystal oscillator, a second external terminal coupled to the other terminal of the crystal oscillator, and first and second terminals coupled to the first and second external terminals when the oscillation is performed; a first variable capacitance circuit coupled to the first terminal of the feedback impedance element, and a configuration circuit for setting a capacitance value of the first variable capacitance circuit. A measurement signal is supplied to the second terminal of the feedback impedance element, and in response to this, the capacitance value of the first variable capacitance circuit is set by the configuration circuit based on the delay time of an observation signal generated at the first terminal with respect to the measurement signal.

    Abstract translation: 具有与晶体振荡器结合进行振荡的功能的半导体集成电路器件包括：第一阻抗元件，包括耦合到晶体振荡器的一个端子的第一外部端子，耦合到晶体的另一个端子的第二外部端子 振荡器，以及当执行振荡时耦合到第一和第二外部端子的第一和第二端子; 耦合到反馈阻抗元件的第一端子的第一可变电容电路和用于设置第一可变电容电路的电容值的配置电路。 测量信号被提供给反馈阻抗元件的第二端子，并且响应于此，第一可变电容电路的电容值由配置电路基于在第一端子处产生的观测信号的延迟时间来设置 相对于测量信号。

    Low noise oscillator having passive impedance network
    8.
    发明授权
    Low noise oscillator having passive impedance network 有权
    低噪声振荡器具有无源阻抗网络

    公开(公告)号：US08970315B2

    公开(公告)日：2015-03-03

    申请号：US13598429

    申请日：2012-08-29

    Applicant: Hyman Shanan

    Inventor： Hyman Shanan

    IPC: H03B5/12 ,  H03B1/04

    CPC classification number: H03B1/04 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2201/0266 ,  H03B2202/03

    Abstract: Apparatus and methods are disclosed related to an oscillator that includes a sustaining amplifier. One such apparatus includes a resonant circuit configured to operate at a resonant frequency, a sustaining amplifier, and a passive impedance network. The resonant circuit can have a first terminal and a second terminal. The sustaining amplifier can include at least a first switch configured to drive the first terminal of the resonant circuit in response to an input at a first control terminal of the first switch. The passive impedance network can be configured to pass a bias to the first control terminal, such as a gate of a field effect transistor, of the first switch. The passive impedance network can be electrically coupled to the second terminal of the resonant circuit and can include at least one inductor.

    Abstract translation: 公开了涉及包括维持放大器的振荡器的装置和方法。 一种这样的设备包括被配置为以谐振频率操作的谐振电路，维持放大器和被动阻抗网络。 谐振电路可以具有第一端子和第二端子。 支持放大器可以包括至少第一开关，其被配置为响应于第一开关的第一控制端处的输入来驱动谐振电路的第一端子。 无源阻抗网络可以被配置为将偏置传递到第一开关的第一控制端子，例如场效应晶体管的栅极。 无源阻抗网络可以电耦合到谐振电路的第二端子并且可以包括至少一个电感器。

    Tunable inductor circuit
    9.
    发明授权
    Tunable inductor circuit 失效
    可调谐电感电路

    公开(公告)号：US08742859B2

    公开(公告)日：2014-06-03

    申请号：US13312177

    申请日：2011-12-06

    Applicant: Zhang Jin ,  Li Liu ,  Chiewcham Narathong

    Inventor： Zhang Jin ,  Li Liu ,  Chiewcham Narathong

    IPC: H03B5/12 ,  H01F21/12 ,  H01F27/28

    CPC classification number: H03B5/1268 ,  H01F21/12 ,  H01F27/2804 ,  H01F2021/125 ,  H03B5/1228 ,  H03B2200/0034 ,  H03B2201/0266 ,  Y10T29/4902

    Abstract: A tunable inductor circuit is disclosed. The tunable inductor circuit includes a first inductor. The tunable inductor circuit also includes a second inductor in parallel with the first inductor. The tunable inductor circuit also includes a switch coupled to the second inductor. A resistance of the switch is added in parallel to the first inductor based on operation of the switch.

    Abstract translation: 公开了一种可调电感器电路。 可调谐电感器电路包括第一电感器。 可调电感器电路还包括与第一电感器并联的第二电感器。 可调电感器电路还包括耦合到第二电感器的开关。 基于开关的操作，开关的电阻并联到第一电感器。

    INTEGRATED CIRCUIT
    10.
    发明申请
    INTEGRATED CIRCUIT 审中-公开
    集成电路

    公开(公告)号：US20140049330A1

    公开(公告)日：2014-02-20

    申请号：US13963751

    申请日：2013-08-09

    Applicant: Sequans Communications Limited

    Inventor： Peter Martin

    IPC: H03B5/12

    CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2201/0266 ,  H03J3/20 ,  H03J2200/10

    Abstract: An integrated circuit device has an LC tank circuit for frequency determination, and a switched capacitor circuit for tuning the resonant frequency of the LC tank. The switched capacitor circuit has plural sets of parallel branches, each set comprising a first branch and a second branch, the first and second branches each connecting between a first node and a second node, each branch containing a respective capacitor in series with a switch, the switched capacitor circuit being configured such that, in use, the switch of the first branch is on when the switch of the second branch is off and vice versa.

    Abstract translation: 集成电路装置具有用于频率确定的LC槽电路和用于调谐LC箱的谐振频率的开关电容器电路。 开关电容电路具有多组平行分支，每组包括第一分支和第二分支，第一和第二分支各自连接在第一节点和第二节点之间，每个分支包含与开关串联的相应电容器， 开关电容器电路被配置为使得在使用中，当第二分支的开关断开时第一分支的开关接通，反之亦然。

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