公开(公告)号：US20040183608A1

公开(公告)日：2004-09-23

申请号：US10486753

申请日：2004-02-13

发明人： Tomio Satoh

IPC分类号： H03B005/32

CPC分类号： H03B5/362 ,  H03B5/366

摘要： The present invention has for its object to provide a piezoelectric oscillator that has improved secular variation characteristics and excels in suppressing undesired resonance. The piezoelectric oscillator has a piezoelectric vibrator and an oscillation transistor, and since a collector load resistance, a capacitance, a parallel circuit of a resistance and a capacitance, and said piezoelectric vibrator are connected between the collector of the transistor and an AC-wise grounded power supply, between the emitter and collector of the transistor, between the emitter of the transistor and the ground, and between the base of the transistor and the ground, respectively, it is possible to sharply reduce a current flow through the crystal vibrator, permitting suppression of frequency variations by the secular change characteristics of the oscillator; furthermore, the reduction of the current flow through the piezoelectric vibrator improves C/N and prevents undesired vibration and oscillation as well as decreases secular changes.

摘要翻译： 本发明的目的是提供一种具有改进的长期变化特性的压电振荡器，并且在抑制不需要的谐振方面优异。 压电振子具有压电振动器和振荡晶体管，并且由于集电极负载电阻，电容，电阻和电容的并联电路以及所述压电振动器连接在晶体管的集电极和AC接地 在晶体管的发射极和集电极之间，晶体管的发射极和地之间以及晶体管的基极与地之间的电源分别，可以大大减少通过晶体振子的电流，从而允许 通过振荡器的长期变化特性抑制频率变化; 此外，通过压电振动器的电流的减少提高了C / N，并且防止不期望的振动和振荡以及减小的长期变化。

公开(公告)号：US20040178858A1

公开(公告)日：2004-09-16

申请号：US10735676

申请日：2003-12-16

申请人： SEIKO EPSON CORPORATION

发明人： Katsuhiko Miyazaki ,  Yugo Koyama ,  Yukihiro Unno

IPC分类号： H03B005/32

CPC分类号： H03H9/1021 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/16195 ,  H01L2924/181 ,  H03H9/0547 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

摘要： To provide a piezoelectric oscillator in which, even after a first package and a second package are bonded to each other, the connection state can be easily observed externally, so that testability can be enhanced, and connection failure can be easily found out to perform a repair. A piezoelectric oscillator includes a first package housing a piezoelectric resonator element therein and having external terminal portions connected to excitation electrodes of the piezoelectric resonator element, and a second package housing an oscillating circuit element, the first package being superposed on and fixed to the second package. Herein, in the second package, the oscillating circuit element, which is connected to a lead frame, is molded out of resin, and connection terminal portions and mounting terminals formed of the lead frame are exposed at the second package. Furthermore, the external terminal portions of the first package are exposed at the side surfaces of the first package, and the external terminal portions and the connection terminal portions of the second package are electrically connected to each other by a conductive material.

摘要翻译： 为了提供一种压电振荡器，其中即使在第一封装和第二封装彼此接合之后，也可以容易地从外部观察连接状态，从而可以提高可测试性，并且可以容易地发现连接失败以执行 修理。 压电振荡器包括在其中容纳压电谐振器元件的第一封装，并且具有连接到压电谐振元件的激励电极的外部端子部分和容纳振荡电路元件的第二封装，第一封装叠置并固定到第二封装 。 这里，在第二封装中，连接到引线框架的振荡电路元件由树脂模制，并且由引线框形成的连接端子部分和安装端子在第二封装处露出。 此外，第一封装的外部端子部分暴露在第一封装的侧表面处，并且第二封装的外部端子部分和连接端子部分通过导电材料彼此电连接。

公开(公告)号：US20040124935A1

公开(公告)日：2004-07-01

申请号：US10330556

申请日：2002-12-30

发明人： Eyal Fayneh ,  Ernest Knoll

IPC分类号： H03B005/32

CPC分类号： H03L7/0893 ,  H03L7/0896 ,  H03L7/18

摘要： A charge pump includes a charge circuit switch, a pump circuit switch, and a controller for generating a first control signal for switching the charge circuit switch and a second control signal for switching the pump circuit. In order to reduce the effects of self-jitter and improve signal quality, the controller generates the first and second control signals so that they have a same amplitude and slew rate. This results in improving steady-state phase error (DC skew). To further improve performance, current sources of the charge pump are controlled to operate continuously. This advantageously minimizes parastic switching currents. The charge pump may be incorporated within a phase-locked loop for purposes of generating frequency signals. The phase-locked loop may be self-biased. A processing system having, for example, a microprocessor-based computing architecture may advantageously include the phase-locked loop for performing any one of a variety of applications.

摘要翻译： 电荷泵包括充电电路开关，泵电路开关和用于产生用于切换充电电路开关的第一控制信号的控制器和用于切换泵电路的第二控制信号。 为了减少自抖动的影响并提高信号质量，控制器产生第一和第二控制信号，使它们具有相同的幅度和转换速率。 这导致稳态相位误差（DC偏移）的改善。 为了进一步提高性能，电流泵的电流源被控制以连续工作。 这有利地最小化了临时开关电流。 为了产生频率信号的目的，电荷泵可以结合在锁相环内。 锁相环可以是自偏置的。 具有例如基于微处理器的计算架构的处理系统可以有利地包括用于执行各种应用中的任何一个的锁相环。

公开(公告)号：US20040017263A1

公开(公告)日：2004-01-29

申请号：US10207575

申请日：2002-07-29

发明人： Darrell Livezey

IPC分类号： H03B005/32

CPC分类号： H03L7/0802 ,  H03L7/095 ,  H03L7/191 ,  H03L7/193

摘要： A phase-locked loop circuit includes one loop for regulating phase of a VCO with respect to a reference source. In another loop, VCO frequency is compared to frequency of a crystal oscillator. Digital counters divide the frequency of the crystal oscillator and VCO to a common reference frequency. Once the frequency loop is locked, the counter at the output of the crystal oscillator is bypassed. The counter is bypassed by a flip-flop circuit clocked by the crystal oscillator and receiving a scaled input from the VCO. While the VCO frequency error is in the frequency range of correction capability of the phase-locked loop, the output of the flip-flop will duplicate the output of the counter. Thus, the counter can be bypassed and shut off.

摘要翻译： 锁相环电路包括一个用于调节VCO相对于参考源的相位的环路。 在另一个环路中，将VCO频率与晶体振荡器的频率进行比较。 数字计数器将晶体振荡器和VCO的频率分频为公共参考频率。 一旦频率环被锁定，晶体振荡器输出端的计数器被旁路。 计数器被由晶体振荡器时钟的触发器电路旁路，并从VCO接收定标输入。 当VCO频率误差在锁相环的校正能力的频率范围内时，触发器的输出将与计数器的输出重复。 因此，可以绕过和关闭计数器。

公开(公告)号：US20030234697A1

公开(公告)日：2003-12-25

申请号：US10251809

申请日：2002-09-23

申请人： Samsung Electro-Mechanics Co., Ltd.

发明人： Chan Yong Jeong ,  Jae Il You

IPC分类号： H03B005/32

CPC分类号： H03B5/366

摘要： The present invention relates to a multiple output crystal oscillator having a plurality of output terminals for implementing multiple output and Integrated Circuit (IC) chips. More particularly, the crystal oscillator comprises a crystal resonator, a first IC chip having an oscillating circuit block and a frequency-adjusting circuit block, a second IC chip having an output-adjusting block, and a substrate structure for mounting said first and second IC chips, wherein said output terminals include a basic output terminal for outputting the oscillating signal from said first IC chip and at least one additional output terminal for outputting at least one wave form-adjusted oscillation signal from said second IC chip. In the present invention, said basic output terminal is placed on one of four underside corners of said substrate, and said additional output terminal is placed on the portion of the underside except the corners.

摘要翻译： 本发明涉及具有多个用于实现多输出和集成电路（IC）芯片的输出端的多输出晶体振荡器。 更具体地，晶体振荡器包括晶体谐振器，具有振荡电路块的第一IC芯片和频率调节电路块，具有输出调节块的第二IC芯片和用于安装所述第一和第二IC 芯片，其中所述输出端包括用于从所述第一IC芯片输出振荡信号的基本输出端子和用于从所述第二IC芯片输出至少一个波形调整振荡信号的至少一个附加输出端子。 在本发明中，所述基本输出端子被放置在所述基板的四个下侧拐角中的一个上，并且所述附加输出端子被放置在除角部以外的下侧部分上。

公开(公告)号：US20030197569A1

公开(公告)日：2003-10-23

申请号：US10420058

申请日：2003-04-21

发明人： Syuichi Mizusawa

IPC分类号： H03B005/32

CPC分类号： H03H9/0542 ,  H01L2924/16195 ,  H03B5/36 ,  H03H9/0547 ,  H03H9/0552 ,  H03H9/1021

摘要： A surface-mount quartz crystal unit has a planar substrate having a pair of crystal-connecting terminals on a first surface and mounting terminals on a second surface, a quartz crystal blank having a pair of extending electrodes which is formed on the outer peripheral portion of the crystal blank and is secured to the crystal-connecting terminals, respectively, with a conductive adhesive to hold the crystal blank on the planar substrate, a metal film formed along the outer periphery of the first surface, and a concave metal cover having an open end face. The crystal blank is hermetically encapsulated between the metal cover and planar substrate by bonding the open end face to the metal film. Preferably, the open end face is bonded to the metal film with a brazing material.

摘要翻译： 表面贴装石英晶体单元具有在第一表面上具有一对晶体连接端子和第二表面上的安装端子的平面基板，具有一对延伸电极的石英晶片，该一对延伸电极形成在第二表面的外周部分上 晶体坯料分别用导电粘合剂固定到晶体连接端子，以将晶体坯保持在平面基板上，沿着第一表面的外周形成的金属膜和具有开口的凹金属盖 端面。 通过将开口端面粘合到金属膜上，将晶体坯料气密地封装在金属盖和平面基板之间。 优选地，开口端面用钎料与金属膜接合。

公开(公告)号：US20030197567A1

公开(公告)日：2003-10-23

申请号：US10376166

申请日：2003-02-28

发明人： David A. Villella

IPC分类号： H03B005/32

CPC分类号： H03L1/04 ,  H03L1/026 ,  H03L1/028

摘要： An oven controlled crystal oscillator has an onboard processor containing an algorithm used to generate a frequency compensating signal based on a predetermined relationship and a monitored current consumption of a heater.

摘要翻译： 炉控晶体振荡器具有板载处理器，其包含用于基于加热器的预定关系和监视的电流消耗来产生频率补偿信号的算法。

公开(公告)号：US20030184397A1

公开(公告)日：2003-10-02

申请号：US10197805

申请日：2002-07-19

发明人： Naoyuki Takahashi ,  Takato Nakamura ,  Satoshi Nonaka ,  Hiromi Yagi ,  Yoichi Shinriki ,  Katsumi Tamanuki

IPC分类号： H03B005/32

CPC分类号： H03H9/172 ,  H03H3/04 ,  H03H9/19 ,  H03H2003/022

摘要： A crystal oscillator includes a base, a crystal thin-film formed on the base by epitaxial growth, a vibrating reed portion formed by processing the crystal thin-film, and excitation electrodes for vibrating the vibrating reed portion. At least one of the excitation electrodes may be formed by depositing a metal. The material for the base may include a single-element semiconductor, a compound semiconductor, and an oxide. When a semiconductor is used for the base, a semiconductor circuit may be provided to the base to form a module including a crystal oscillator.

摘要翻译： 晶体振荡器包括基底，通过外延生长形成在基底上的晶体薄膜，通过加工晶体薄膜形成的振动片部分，以及用于振动振动筘部分的振动电极。 激发电极中的至少一个可以通过沉积金属形成。 用于基底的材料可以包括单元素半导体，化合物半导体和氧化物。 当半导体用于基极时，半导体电路可以设置到基底以形成包括晶体振荡器的模块。

公开(公告)号：US20030155984A1

公开(公告)日：2003-08-21

申请号：US10370177

申请日：2003-02-19

发明人： Kuichi Kubo ,  Fumio Asamura

IPC分类号： H03B005/32

CPC分类号： H03B5/04 ,  H03B5/368

摘要： A temperature-compensated crystal oscillator (TCXO) comprises a voltage-controlled crystal oscillator (VCXO) having a crystal unit, a compensating voltage generator for generating a compensating voltage applied to the voltage-controlled crystal oscillator, a low pass filter inserted between the compensating voltage generator and voltage-controlled crystal oscillator, and a switching element connected in parallel with the low pass filter for short-circuiting across the low pass filter. In a manufacturing process of the temperature-compensated crystal oscillator, switching element is brought into a conducting state when an excitation electrode of the crystal unit is irradiated with an ion beam for adjusting the oscillation frequency.

摘要翻译： 温度补偿晶体振荡器（TCXO）包括具有晶体单元的压控晶体振荡器（VCXO），用于产生施加到压控晶体振荡器的补偿电压的补偿电压发生器，插入在补偿电压晶体振荡器 电压发生器和压控晶体振荡器，以及与低通滤波器并联连接的开关元件，用于跨低通滤波器短路。 在温度补偿晶体振荡器的制造过程中，当用用于调节振荡频率的离子束照射晶体单元的激励电极时，开关元件进入导通状态。

公开(公告)号：US20030098751A1

公开(公告)日：2003-05-29

申请号：US10306913

申请日：2002-11-27

发明人： Hiroyuki Kanno

IPC分类号： H03B005/32

CPC分类号： H03K3/0307

摘要： A voltage-controlled piezoelectric oscillator includes: an inverter having an input and output; a feedback resistor of the inverter; a first capacitor inserted between the inverter input and the ground potential; a second capacitor inserted between the inverter output and the ground potential; and a series circuit which is composed of a piezoelectric vibrator, two variable-voltage capacitance elements such as variable capacitance diodes, and a third capacitor. Each of the variable-voltage capacitance elements has a first terminal and a second terminal, the first terminals being connected to each other. The oscillator further includes a control terminal for applying a control voltage by way of a resistor to the common connection point of the first terminals, and return resistors inserted between the second terminals of variable-voltage capacitance elements and the ground potential.

摘要翻译： 压控压电振荡器包括：具有输入和输出的反相器; 逆变器的反馈电阻; 插入逆变器输入和地电位之间的第一电容器; 插在逆变器输出端和地电位之间的第二电容器; 以及由压电振子，诸如可变电容二极管的两个可变电压电容元件和第三电容器组成的串联电路。 每个可变电压电容元件具有第一端子和第二端子，第一端子彼此连接。 振荡器还包括控制端子，用于通过电阻器将控制电压施加到第一端子的公共连接点，以及插入在可变电压电容元件的第二端子与接地电位之间的返回电阻器。