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1. 发明申请

US20180159511A1 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
申请人： Peregrine Semiconductor Corporation
发明人： Tero Tapio Ranta
IPC分类号： H03J3/16 , H03K17/687
CPC分类号： H03J3/16 , H03B2201/0208 , H03B2201/0266 , H03J3/20 , H03J5/24 , H03K17/687
摘要： 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.

2. 发明申请

US20170294915A1 OSCILLATOR CIRCUIT WITH RECONFIGURABLE OSCILLATOR AMPLIFIER AND/OR HYBRID AMPLITUDE CALIBRATION CIRCUIT AND ASSOCIATED METHOD 审中-公开
公开(公告)号：US20170294915A1
公开(公告)日：2017-10-12
申请号：US15355073
申请日：2016-11-18
申请人： MEDIATEK INC.
发明人： Hao-Wei Huang , Yen-Tso Chen , Song-Yu Yang
IPC分类号： H03L5/00 , H03B5/36 , H03B5/24
CPC分类号： H03L5/00 , H03B5/06 , H03B5/1262 , H03B5/24 , H03B5/364 , H03B2200/0082 , H03B2200/009 , H03B2200/0094 , H03B2201/0266 , H03L3/00
摘要： An oscillator circuit has a reconfigurable oscillator amplifier. The reconfigurable oscillator amplifier is used to be coupled to a resonant circuit in parallel. The reconfigurable oscillator amplifier supports different circuit configurations for different operation modes, respectively. The reconfigurable oscillator amplifier has at least one circuit component shared by the different circuit configurations. The reconfigurable oscillator amplifier employs one of the different circuit configurations under one of the different operation modes.

3. 发明申请

US20170187329A1 VOLTAGE-CONTROLLED OSCILLATOR AND A METHOD FOR TUNING OSCILLATIONS 审中-公开
公开(公告)号：US20170187329A1
公开(公告)日：2017-06-29
申请号：US15346420
申请日：2016-11-08
申请人： Srinivasa Rao Madala , Bharath Kumar Singareddy , Hormoz Djahanshahi , Stanley Ho
发明人： Srinivasa Rao Madala , Bharath Kumar Singareddy , Hormoz Djahanshahi , Stanley Ho
IPC分类号： H03B5/36
CPC分类号： H03B5/366 , H03B5/364 , H03B2201/011 , H03B2201/0266
摘要： Method and systems are provided for voltage-controlling and tuning of oscillators. An oscillator may comprise comprises an oscillator core configured for contributing gain to oscillations generated in the oscillator and a frequency tuning network connected between the oscillator core and a signal source that provides an input signal for creating the oscillations in the oscillator. The frequency tuning network may be configured for tuning frequency of the oscillations, to inhibit amplifying a first capacitance from the oscillator core and to amplify a second capacitance from the frequency tuning network. The frequency of oscillations may be tuned by varying a capacitance, and isolating one or more of noise sources or parasitic capacitances from the tuning network.

4. 发明授权

US09455666B2 Multiple frequency LC voltage controlled oscillator scheme 有权
标题翻译：多频LC压控振荡器方案
公开(公告)号：US09455666B2
公开(公告)日：2016-09-27
申请号：US14622626
申请日：2015-02-13
申请人： Taiwan Semiconductor Manufacturing Company, Ltd.
发明人： Chih-Chang Lin , Chan-Hong Chern , Ming-Chieh Huang , Tien-Chun Yang
IPC分类号： H03B5/08 , H03B5/12 , H03B1/00 , H03L7/095
CPC分类号： H03B5/1262 , H03B1/00 , H03B5/1228 , H03B2201/0266 , H03L7/095 , H03L7/099
摘要： A circuit includes at least two LC voltage controlled oscillators (LCVCOs). Each LCVCO includes a switch to selectively turn on or off the LCVCO. One selected LCVCO of the at least two LCVCOs is configured to provide a differential LCVCO output. A converter coupled to the at least two LCVCOs is configured to receive the differential LCVCO output and provide an output signal with a full voltage swing.
摘要翻译：一个电路包括至少两个LC压控振荡器（LCVCO）。每个LCVCO都包括有选择地打开或关闭LCVCO的开关。所选择的至少两个LCVCO的LCVCO被配置为提供差分LCVCO输出。耦合到所述至少两个LCVCO的A转换器被配置为接收差分LCVCO输出并且提供具有全电压摆幅的输出信号。

5. 发明申请

US20160036382A1 LOW POWER WIDE TUNING RANGE OSCILLATOR 有权
标题翻译：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
申请人： Texas Instruments Incorporated
发明人： Sudipto Chakraborty
IPC分类号： H03B5/12
CPC分类号： H03B5/1215 , H03B1/00 , H03B5/08 , H03B5/1212 , H03B5/1228 , H03B5/125 , H03B5/1262 , H03B5/1296 , H03B2200/0082 , H03B2201/0266
摘要： 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.
摘要翻译：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。

6. 发明申请

US20150365049A1 SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND MANUFACTURING METHOD OF ELECTRONIC DEVICE USING THE SAME 审中-公开
标题翻译：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
申请人： Renesas Electronics Corporation
发明人： Osamu OZAWA , Soshiro NISHIOKA , Takashi NAKAMURA , Susumu ABE , Kazuya TANIGUCHI , Masaaki TANIMURA
IPC分类号： H03B5/36 , H03K3/03
CPC分类号： H03B5/36 , G01R31/2824 , H03B5/366 , H03B2200/005 , H03B2201/0266 , H03L7/00
摘要： 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.
摘要翻译：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。

7. 发明授权

US08970315B2 Low noise oscillator having passive impedance network 有权
标题翻译：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
申请人： Hyman Shanan
发明人： Hyman Shanan
IPC分类号： H03B5/12 , H03B1/04
CPC分类号： H03B1/04 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1265 , H03B2200/005 , H03B2200/0062 , H03B2200/009 , H03B2201/0258 , H03B2201/0266 , H03B2202/03
摘要： 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.
摘要翻译：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。

8. 发明授权

US08742859B2 Tunable inductor circuit 失效
标题翻译：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
申请人： Zhang Jin , Li Liu , Chiewcham Narathong
发明人： Zhang Jin , Li Liu , Chiewcham Narathong
IPC分类号： H03B5/12 , H01F21/12 , H01F27/28
CPC分类号： H03B5/1268 , H01F21/12 , H01F27/2804 , H01F2021/125 , H03B5/1228 , H03B2200/0034 , H03B2201/0266 , Y10T29/4902
摘要： 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.
摘要翻译：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。

9. 发明申请

US20140049330A1 INTEGRATED CIRCUIT 审中-公开
标题翻译：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
申请人： Sequans Communications Limited
发明人： Peter Martin
IPC分类号： H03B5/12
CPC分类号： H03B5/1228 , H03B5/1212 , H03B5/1265 , H03B5/1293 , H03B2201/0266 , H03J3/20 , H03J2200/10
摘要： 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.
摘要翻译：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。

10. 发明申请

US20130285729A1 TRIMMING CIRCUIT FOR CLOCK SOURCE 有权
标题翻译：时钟电路的修正电路
公开(公告)号：US20130285729A1
公开(公告)日：2013-10-31
申请号：US13607734
申请日：2012-09-09
申请人： Xiuqiang Xu , Jie Jin , Yizhong Zhang
发明人： Xiuqiang Xu , Jie Jin , Yizhong Zhang
IPC分类号： H03L5/00
CPC分类号： H03K3/0231 , H03B2201/0266 , H03K4/502 , H03K17/6871 , H03K2017/066 , H03K2217/0036 , H03K2217/0054
摘要： A semiconductor trimming circuit includes parallel coupled PMOS devices coupled in parallel with parallel coupled NMOS devices and an additional pair of dummy NMOS devices. The dummy NMOS devices are coupled in parallel with the NMOS devices. A trimming circuit for an internal clock source may be formed with an array of such switches for selecting one or more trimming capacitors of the trimming circuit. Such an array has a low leakage current and permits good trimming linearity.
摘要翻译：半导体微调电路包括与并联耦合NMOS器件并联耦合的并联耦合PMOS器件和附加的一对虚设NMOS器件。虚设NMOS器件与NMOS器件并联耦合。用于内部时钟源的微调电路可以形成有用于选择微调电路的一个或多个微调电容器的这种开关阵列。这种阵列具有低泄漏电流并且允许良好的微调线性度。

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