公开(公告)号：US20140320223A1

公开(公告)日：2014-10-30

申请号：US14248658

申请日：2014-04-09

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Osamu OZAWA ,  Soshiro NISHIOKA

IPC: H03B5/36 ,  H01L41/09

CPC classification number: H03B5/364 ,  H03B5/366 ,  H03B2200/0082 ,  H03B2200/0094 ,  H03B2201/0266

Abstract: A semiconductor apparatus includes: first and second external terminals that are connected to respective both ends of an piezoelectric vibrator, in which the piezoelectric vibrator is externally disposed; an inverting amplifier that is disposed between the first and second external terminals; a feedback resistance that feeds back an output of the inverting amplifier to an input of the inverting amplifier; a first capacitative element that is disposed between the first external terminal and a reference voltage terminal; a first resistive element that is disposed in series with the first capacitative element; a second capacitative element that is disposed between the second external terminal and the reference voltage terminal; and a second resistive element that is disposed in series with the second capacitative element.

Abstract translation: 半导体装置包括：第一和第二外部端子，其连接到压电振动器的相应的两端，其中压电振动器在外部布置; 反相放大器，设置在第一和第二外部端子之间; 将反相放大器的输出反馈到反相放大器的输入的反馈电阻; 第一电容元件，设置在第一外部端子和参考电压端子之间; 与第一电容元件串联布置的第一电阻元件; 第二电容元件，设置在第二外部端子和参考电压端子之间; 以及与第二电容元件串联布置的第二电阻元件。

公开(公告)号：US08723612B2

公开(公告)日：2014-05-13

申请号：US13607734

申请日：2012-09-09

Applicant: Xiuqiang Xu ,  Jie Jin ,  Yizhong Zhang

Inventor： Xiuqiang Xu ,  Jie Jin ,  Yizhong Zhang

IPC: H03K3/0231 ,  H03K4/502

CPC classification number: H03K3/0231 ,  H03B2201/0266 ,  H03K4/502 ,  H03K17/6871 ,  H03K2017/066 ,  H03K2217/0036 ,  H03K2217/0054

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130082788A1

公开(公告)日：2013-04-04

申请号：US13598429

申请日：2012-08-29

Applicant: Hyman Shanan

Inventor： Hyman Shanan

IPC: 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。

公开(公告)号：US08275336B2

公开(公告)日：2012-09-25

申请号：US12821489

申请日：2010-06-23

Applicant: Chen Tse-Peng

Inventor： Chen Tse-Peng

IPC: H04B1/06 ,  H04B7/00

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

Abstract: An oscillator circuit having a source of an oscillating signal, a tank circuit including an inductor and a capacitor, and a discretely switchable capacitance module configured to control an amount of capacitance in the oscillator circuit. The discretely switchable capacitance module includes, in one embodiment, a capacitor coupled between a first node and a second node, a switch, having a control node, coupled between the second node and a third node; and a DC feed circuit, having a first end coupled to the second node and a second end configured to receive a first or second control signal. The control node of the switch is tied to a predetermined bias voltage. When the first control signal is applied, the capacitor is coupled between the first node and the third node via the switch such that the capacitor is coupled in parallel with the capacitor of the tank circuit, and when the second control signal is applied the capacitor is decoupled from the tank circuit.

Abstract translation: 具有振荡信号源的振荡器电路，包括电感器和电容器的振荡电路以及被配置为控制振荡器电路中的电容量的离散可切换电容模块。 在一个实施例中，离散可切换电容模块包括耦合在第一节点和第二节点之间的电容器，具有耦合在第二节点和第三节点之间的控制节点的开关; 以及DC馈电电路，其具有耦合到第二节点的第一端和被配置为接收第一或第二控制信号的第二端。 开关的控制节点被连接到预定的偏置电压。 当施加第一控制信号时，电容器经由开关耦合在第一节点和第三节点之间，使得电容器与谐振电路的电容器并联耦合，并且当施加第二控制信号时，电容器 与油箱回路分离。

公开(公告)号：US07847642B2

公开(公告)日：2010-12-07

申请号：US11641330

申请日：2006-12-19

Applicant: Harald Pretl

Inventor： Harald Pretl

IPC: H03L7/091 ,  H03L7/093

CPC classification number: H03B5/366 ,  H03B2201/0266 ,  H03J2200/10 ,  H03L7/1976

Abstract: A frequency tuning circuit includes a connection for coupling to a signal tap of an element which has a resonant frequency. The tuning circuit contains a controllable-capacitance capacitance array for tuning of a signal frequency of the element. The capacitance array has a multiplicity of capacitances which can be connected to a control connection via a signal. In this case, the capacitance array is coupled to the connection. A control input is used to supply a digital control word. Furthermore, the tuning circuit contains a sigma-delta modulator whose input side is coupled to the control input and whose output side is coupled to the control connection of the capacitance array. This makes it possible to produce a tuning word by means of which the effective resolution of the capacitance array can be increased.

Abstract translation: 频率调谐电路包括用于耦合到具有谐振频率的元件的信号抽头的连接。 调谐电路包含用于调谐元件的信号频率的可控电容电容阵列。 电容阵列具有多个电容，其可以经由信号连接到控制连接。 在这种情况下，电容阵列耦合到连接。 控制输入​​用于提供数字控制字。 此外，调谐电路包含一个Σ-Δ调制器，其输入端耦合到控制输入，其输出端耦合到电容阵列的控制连接。 这使得可以产生可以增加电容阵列的有效分辨率的调谐字。

公开(公告)号：US07741923B2

公开(公告)日：2010-06-22

申请号：US12048574

申请日：2008-03-14

Applicant: Ping-Yuan Deng ,  Jean-Fu Kiang

Inventor： Ping-Yuan Deng ,  Jean-Fu Kiang

IPC: H03B5/08

CPC classification number: H03L7/1976 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2200/0038 ,  H03B2200/0074 ,  H03B2201/0266 ,  H03J2200/10 ,  H03K3/0315 ,  H03L7/099 ,  H03L7/0995 ,  H03L7/10 ,  H03L7/193 ,  H03L7/24 ,  H03L2207/06

Abstract: A transistor voltage-controlled oscillator (VCO) and a frequency synthesizer having the transistor VCO are provided. The frequency synthesizer adopts a divide-by-five injection-locked frequency divider, which includes a five-stage inverter ring oscillating frequency dividing circuit for reducing the operating frequency of the oscillating signal from the VCO, thus decreasing power consumption due to counting operation of the frequency synthesizer. The transistor VCO includes three transistor switching capacitor sets connected in parallel to one another to form a parallel structure. The gates of the transistor switching capacitor sets are connected to respective operating voltage sources, so as to switch the status of the corresponding transistor switching capacitor set, which in turn adjusts the harmonic frequency generated by the VCO, thereby allowing the VCO to generate a corresponding operating frequency with enough bandwidth.

Abstract translation: 提供了具有晶体管VCO的晶体管压控振荡器（VCO）和频率合成器。 频率合成器采用五分频锁相分频器，包括一个五级反相环振荡分频电路，用于降低VCO振荡信号的工作频率，从而降低由于计数操作引起的功耗 频率合成器。 晶体管VCO包括彼此并联连接以形成并联结构的三个晶体管开关电容器组。 晶体管开关电容器组的栅极连接到相应的工作电压源，以便切换相应的晶体管开关电容器组的状态，这反过来调节由VCO产生的谐波频率，从而允许VCO产生相应的 工作频率有足够的带宽。

公开(公告)号：US20090140817A1

公开(公告)日：2009-06-04

申请号：US12048574

申请日：2008-03-14

Applicant: Ping-Yuan Deng ,  Jean-Fu Kiang

Inventor： Ping-Yuan Deng ,  Jean-Fu Kiang

IPC: H03L7/087 ,  H03B5/12

CPC classification number: H03L7/1976 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2200/0038 ,  H03B2200/0074 ,  H03B2201/0266 ,  H03J2200/10 ,  H03K3/0315 ,  H03L7/099 ,  H03L7/0995 ,  H03L7/10 ,  H03L7/193 ,  H03L7/24 ,  H03L2207/06

Abstract: A transistor voltage-controlled oscillator (VCO) and a frequency synthesizer having the transistor VCO are provided. The frequency synthesizer adopts a divide-by-five injection-locked frequency divider, which includes a five-stage inverter ring oscillating frequency dividing circuit for reducing the operating frequency of the oscillating signal from the VCO, thus decreasing power consumption due to counting operation of the frequency synthesizer. The transistor VCO includes three transistor switching capacitor sets connected in parallel to one another to form a parallel structure. The gates of the transistor switching capacitor sets are connected to respective operating voltage sources, so as to switch the status of the corresponding transistor switching capacitor set, which in turn adjusts the harmonic frequency generated by the VCO, thereby allowing the VCO to generate a corresponding operating frequency with enough bandwidth.

Abstract translation: 提供了具有晶体管VCO的晶体管压控振荡器（VCO）和频率合成器。 频率合成器采用五分频锁相分频器，包括一个五级反相环振荡分频电路，用于降低VCO振荡信号的工作频率，从而降低由于计数操作引起的功耗 频率合成器。 晶体管VCO包括彼此并联连接以形成并联结构的三个晶体管开关电容器组。 晶体管开关电容器组的栅极连接到相应的工作电压源，以便切换相应的晶体管开关电容器组的状态，这反过来调节由VCO产生的谐波频率，从而允许VCO产生相应的 工作频率有足够的带宽。

公开(公告)号：US20080122670A1

公开(公告)日：2008-05-29

申请号：US11606681

申请日：2006-11-29

Applicant: Erno H. Klaassen

Inventor： Erno H. Klaassen

IPC: H03M1/66

CPC classification number: H03M1/0612 ,  H03B2200/005 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03M1/687 ,  H03M1/802

Abstract: A digital capacitor array with individually shielded unit capacitors and combination binary—thermometer coded addressing is disclosed. Such a capacitor array may be part of a digitally controlled oscillator in a MEMS-based frequency reference.

公开(公告)号：US20070146088A1

公开(公告)日：2007-06-28

申请号：US11614634

申请日：2006-12-21

Applicant: Izumi ARAI ,  Kazuaki Hori

Inventor： Izumi ARAI ,  Kazuaki Hori

IPC: H03B5/08

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1268 ,  H03B2200/0048 ,  H03B2201/0216 ,  H03B2201/0266

Abstract: There is provided an LC resonance type oscillation circuit with a wide frequency variable range with a small variation of Q and capable of reducing a chip size due to no external parts required, and a communication semiconductor circuit device (high-frequency IC) having the oscillation circuit. In the LC resonance type oscillation circuit, a capacitance element and a switch element are connected in parallel between both terminals of a secondary side inductance element which is placed facing an inductance element constituting the LC resonance circuit and is connected by mutual induction to the inductance element. It is designed so that an equivalent inductance increases as the capacitance element is connected between the both terminals of the secondary side inductance element in a state where the switch element is turned OFF, and that the equivalent inductance decreases as the both terminals of the secondary side inductance element are short-circuited in a state where the switch element is turned ON.

Abstract translation: 提供了具有较小变化范围的宽频率可变范围的LC谐振型振荡电路，并且由于不需要外部部件而能够减小芯片尺寸，并且具有振荡的通信半导体电路装置（高频IC） 电路。 在LC谐振型振荡电路中，电容元件和开关元件并联连接在二次侧电感元件的两个端子之间，二次侧电感元件面对构成LC谐振电路的电感元件，并通过互感连接到电感元件 。 其设计成使得当开关元件断开的状态下电容元件连接在次级侧电感元件的两端之间时，等效电感增加，并且等效电感随着次级侧的两端而减小 电感元件在开关元件导通的状态下短路。

公开(公告)号：US20070132522A1

公开(公告)日：2007-06-14

申请号：US11542288

申请日：2006-10-02

Applicant: Ja Lee ,  Kwi Kim ,  Chong Kwon ,  Jong Kim ,  Sang Lee ,  Kyoung Cho

Inventor： Ja Lee ,  Kwi Kim ,  Chong Kwon ,  Jong Kim ,  Sang Lee ,  Kyoung Cho

IPC: H03B5/08

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1271 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J2200/10

Abstract: Provided is an LC resonance voltage-controlled oscillator (VCO) used for a multi-band multi-mode wireless transceiver. In order to generate a multi-band frequency, a capacitor bank and a switchable inductor are included in the LC resonance voltage-controlled oscillator. The LC resonance voltage-controlled oscillator employs an adjustable emitter-degeneration negative resistance cell in place of tail current sources in order to compensate for non-uniform oscillation amplitude caused by the capacitor bank and prevent the degradation of a phase noise due to the tail current sources. The LC resonance voltage-controlled oscillator includes an inductor providing an inductance element partially determining the frequency of an oscillation wave; a discrete capacitor bank providing a capacitance element partially determining the frequency of the oscillation wave and being discretely determined by a control bit signal; and a discrete negative resistance cell providing a negative resistance element that is discretely determined by the control bit signal, to keep the amplitude of the oscillation wave constant.

Abstract translation: 提供了一种用于多频带多模无线收发器的LC谐振压控振荡器（VCO）。 为了产生多频带频率，LC谐振压控振荡器中包括电容器组和可切换电感器。 LC谐振压控振荡器代替尾电流源采用可调发射极 - 退化负电阻电池，以补偿由电容器组引起的不均匀振荡幅度，并防止由于尾电流导致的相位噪声的降低 来源。 LC谐振电压控制振荡器包括：电感器，其提供部分地确定振荡波频率的电感元件; 分立电容器组，提供部分地确定振荡波的频率并由控制位信号离散地确定的电容元件; 以及提供由控制位信号离散地确定的负电阻元件的离散负电阻单元，以保持振荡波的幅度恒定。