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10 条记录 (耗时 0.013 秒)

    OSCILLATION CIRCUIT, OSCILLATOR, FRACTIONAL N-PLL CIRCUIT, ELECTRONIC APPARATUS, MOVING OBJECT, AND DETERMINATION METHOD OF REFERENCE FREQUENCY OF FRACTIONAL N-PLL CIRCUIT
    1.
    发明申请
    OSCILLATION CIRCUIT, OSCILLATOR, FRACTIONAL N-PLL CIRCUIT, ELECTRONIC APPARATUS, MOVING OBJECT, AND DETERMINATION METHOD OF REFERENCE FREQUENCY OF FRACTIONAL N-PLL CIRCUIT 有权
    振荡电路，振荡器，部分N-PLL电路，电子设备，移动对象和分数N-PLL电路的参考频率的确定方法

    公开(公告)号：US20150214961A1

    公开(公告)日：2015-07-30

    申请号：US14607343

    申请日：2015-01-28

    申请人： Seiko Epson Corporation

    发明人： Yuichi TORIUMI ,  Hayato TERASHI ,  Mitsuaki SAWADA ,  Hisahiro ITO ,  Yasunari FURUYA

    IPC分类号： H03L7/08 ,  H03L7/099 ,  H03B5/32

    CPC分类号： H03L7/1976

    摘要： In order to configure an oscillation circuit, an oscillator, a fractional N-PLL circuit, and the like that can output a plurality of frequencies, while decreasing an influence of an integer value boundary spurious at one reference frequency, the oscillation circuit includes a circuit for oscillation that oscillates a resonator, a fractional N-PLL circuit to which a signal from the circuit for oscillation is input, and a non-volatile memory that stores a plurality of division ratios, which can be selected from outside, of the fractional N-PLL circuit. A fractional portion of at least two of the plurality of division ratios is equal to or higher than 0.05 and is equal to or lower than 0.95.

    摘要翻译： 为了配置可以输出多个频率的振荡电路，振荡器，分数N-PLL电路等，同时减小在一个基准频率处的整数值边界的影响，振荡电路包括电路 对于振荡谐振器的振荡，输入来自用于振荡的电路的信号的分数N-PLL电路，以及存储可从外部选择的分数N的多个分频比的非易失性存储器 -PLL电路。 多个分割比中的至少两个的分数部分等于或大于0.05并且等于或小于0.95。

    Circuit Device And Oscillator
    4.
    发明公开
    Circuit Device And Oscillator 审中-公开

    公开(公告)号：US20240291434A1

    公开(公告)日：2024-08-29

    申请号：US18585456

    申请日：2024-02-23

    申请人： SEIKO EPSON CORPORATION

    发明人： Mitsuaki SAWADA

    IPC分类号： H03B5/36 ,  H03B5/04

    CPC分类号： H03B5/36 ,  H03B5/04 ,  H03B2200/009

    摘要： A circuit device includes an oscillation circuit configured to generate an oscillation signal, a waveform shaping circuit configured to perform waveform shaping on the oscillation signal, and a regulator configured to supply a regulated power supply voltage to the waveform shaping circuit. The circuit device further includes an amplitude detection circuit configured to detect the amplitude of the oscillation signal and output an amplitude detection signal, and a power supply control circuit configured to perform control on the regulator based on the amplitude detection signal, such that the regulated power supply voltage becomes smaller than the amplitude of the oscillation signal.

    OSCILLATION CIRCUIT, OSCILLATOR, ELECTRONIC APPARATUS, MOVING OBJECT, AND FREQUENCY ADJUSTMENT METHOD OF OSCILLATOR
    6.
    发明申请
    OSCILLATION CIRCUIT, OSCILLATOR, ELECTRONIC APPARATUS, MOVING OBJECT, AND FREQUENCY ADJUSTMENT METHOD OF OSCILLATOR 有权
    振荡电路，振荡器，电子设备，移动对象和振荡器的频率调整方法

    公开(公告)号：US20150188550A1

    公开(公告)日：2015-07-02

    申请号：US14580943

    申请日：2014-12-23

    申请人： Seiko Epson Corporation

    发明人： Mitsuaki SAWADA ,  Yuichi TORIUMI

    IPC分类号： H03L7/08 ,  H03B5/36 ,  H03L7/099

    CPC分类号： H03L7/0802 ,  H03B5/326 ,  H03B5/366 ,  H03B2201/0208 ,  H03L7/08 ,  H03L7/099 ,  H03L7/1976

    摘要： An oscillation circuit includes a voltage controlled oscillation circuit that includes a variable capacitance circuit provided with a variable capacitance element whose capacitance value is controlled on the basis of a control voltage and oscillates a vibrator so as to generate an oscillation signal, and a fractional N-PLL circuit that receives the oscillation signal generated by the voltage controlled oscillation circuit and includes a voltage controlled oscillator which controls an oscillation frequency on the basis of control input data (an integral division ratio and a fractional division ratio).

    摘要翻译： 振荡电路包括电压控制振荡电路，该电压控制振荡电路包括具有可变电容元件的可变电容电路，该可变电容元件的电容值基于控制电压进行控制，振荡振荡器以产生振荡信号， PLL电路，其接收由压控振荡电路产生的振荡信号，并且包括基于控制输入数据（积分分割比和分数除数）来控制振荡频率的压控振荡器。

    Circuit Device And Oscillator
    8.
    发明公开
    Circuit Device And Oscillator 审中-公开

    公开(公告)号：US20230275546A1

    公开(公告)日：2023-08-31

    申请号：US18114322

    申请日：2023-02-27

    申请人： SEIKO EPSON CORPORATION

    发明人： Takashi NOMIYA ,  Mitsuaki SAWADA

    IPC分类号： H03B5/04 ,  H03B5/32

    CPC分类号： H03B5/04 ,  H03B5/32 ,  H03B2200/0088

    摘要： A circuit device includes an oscillation circuit configured to generate an oscillation signal and a temperature compensation circuit configured to perform temperature compensation for an oscillation frequency of the oscillation signal. The temperature compensation circuit includes a first reference current generation circuit configured to generate a first reference current, a second reference current generation circuit configured to generate a second reference current, a first compensation circuit configured to perform temperature compensation for the oscillation frequency in a first temperature range based on the first reference current, and a second compensation circuit configured to perform temperature compensation for the oscillation frequency in a second temperature range, which is higher than the first temperature range in temperature, based on the second reference current. The first reference current generation circuit reduces the first reference current as a temperature rises, or the second reference current generation circuit reduces the second reference current as the temperature drops.

    Integrated Circuit Device, Oscillator, Electronic Apparatus, And Vehicle
    9.
    发明申请
    Integrated Circuit Device, Oscillator, Electronic Apparatus, And Vehicle 审中-公开

    公开(公告)号：US20200313619A1

    公开(公告)日：2020-10-01

    申请号：US16835440

    申请日：2020-03-31

    申请人： Seiko Epson Corporation

    发明人： Mitsuaki SAWADA ,  Naoki II ,  Yosuke ITASAKA

    IPC分类号： H03B5/36 ,  H03B5/04

    摘要： An integrated circuit device includes a first pad and a second pad electrically coupled to one end and the other end of a resonator, an oscillation circuit that is electrically coupled to the first pad and the second pad and generates an oscillation signal by causing the resonator to oscillate, and an output circuit that outputs a clock signal based on the oscillation signal. The oscillation circuit is disposed along a first side of the integrated circuit device among the first side, a second side that intersects the first side, a third side that is an opposite side of the first side, and a fourth side that is an opposite side of the second side. The first pad and the second pad are disposed in the oscillation circuit along the first side in a plan view, and the output circuit is disposed along the second side.

    Integrated Circuit Device, Oscillator, Electronic Apparatus, And Vehicle
    10.
    发明申请
    Integrated Circuit Device, Oscillator, Electronic Apparatus, And Vehicle 审中-公开

    公开(公告)号：US20200313614A1

    公开(公告)日：2020-10-01

    申请号：US16835365

    申请日：2020-03-31

    申请人： Seiko Epson Corporation

    发明人： Mitsuaki SAWADA

    IPC分类号： H03B5/04 ,  H03B5/36 ,  H01L23/528 ,  H01L23/34 ,  H01L25/16 ,  H03K17/687 ,  G05F1/575 ,  G05F3/20

    摘要： An integrated circuit device includes an oscillation circuit that generates an oscillation signal by causing a resonator to oscillate, a temperature compensation circuit that performs temperature compensation of an oscillation frequency of the oscillation circuit, an output circuit that outputs a clock signal based on the oscillation signal, a first regulator that generates a first regulated power supply voltage based on a power supply voltage and supplies the first regulated power supply voltage to the temperature compensation circuit, and a second regulator that generates a second regulated power supply voltage based on the power supply voltage and supplies the second regulated power supply voltage to the output circuit.