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：US20240022211A1

公开(公告)日：2024-01-18

申请号：US18342888

申请日：2023-06-28

Applicant: Renesas Electronics Corporation

Inventor： Soshiro NISHIOKA

IPC: H03B5/36

CPC classification number: H03B5/364

Abstract: A semiconductor device includes a crystal oscillator circuit, a first noise application circuit, and a second noise application circuit. The first noise application circuit is connected to the crystal oscillator circuit and is configured to drive a crystal resonator by selectively applying initial noises of opposite phases to a first external terminal and a second external terminal. The second noise application circuit applies a second noise to the first external terminal by amplifying a signal at the first external terminal and returning the amplified signal to the first external terminal, thereby driving an oscillation amplifier and a crystal resonator of the crystal oscillator circuit and shortening a start-up time of the crystal oscillator circuit.

公开(公告)号：US20160164462A1

公开(公告)日：2016-06-09

申请号：US15041353

申请日：2016-02-11

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Osamu OZAWA ,  Soshiro NISHIOKA

IPC: H03B5/36

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：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。