公开(公告)号：US08981860B2

公开(公告)日：2015-03-17

申请号：US13721630

申请日：2012-12-20

Applicant: Silicon Laboratories Inc.

Inventor： Aaron Caffee ,  Manu Seth ,  Brian Drost

IPC: H03L5/00 ,  H03B5/30 ,  B81B7/02

CPC classification number: H03B5/30 ,  B81B7/02 ,  H03B2200/001

Abstract: An apparatus includes a microelectromechanical system (MEMS) device configured as part of an oscillator. The MEMS device includes a mass suspended from a substrate of the MEMS, a first electrode configured to provide a first signal based on a displacement of the mass, and a second electrode configured to receive a second signal based on the first signal. The apparatus includes an amplifier coupled to the first electrode and a first node. The amplifier is configured to generate an output signal, the output signal being based on the first signal and a first gain. The apparatus includes an attenuator configured to attenuate the output signal based on a second gain and provide as the second signal an attenuated version of the output signal.

Abstract translation: 一种装置包括被配置为振荡器的一部分的微机电系统（MEMS）装置。 MEMS器件包括从MEMS的衬底悬挂的质量，第一电极，被配置为基于质量的位移提供第一信号，以及第二电极，被配置为基于第一信号接收第二信号。 该装置包括耦合到第一电极和第一节点的放大器。 放大器被配置为产生输出信号，输出信号基于第一信号和第一增益。 该装置包括衰减器，其被配置为基于第二增益来衰减输出信号，并将输出信号的衰减版本提供为第二信号。

公开(公告)号：US20140176248A1

公开(公告)日：2014-06-26

申请号：US13721630

申请日：2012-12-20

Applicant: Silicon Laboratories Inc.

Inventor： Aaron Caffee ,  Manu Seth ,  Brian Drost

IPC: H03B5/30 ,  B81B7/02

CPC classification number: H03B5/30 ,  B81B7/02 ,  H03B2200/001

Abstract: An apparatus includes a microelectromechanical system (MEMS) device configured as part of an oscillator. The MEMS device includes a mass suspended from a substrate of the MEMS, a first electrode configured to provide a first signal based on a displacement of the mass, and a second electrode configured to receive a second signal based on the first signal. The apparatus includes an amplifier coupled to the first electrode and a first node. The amplifier is configured to generate an output signal, the output signal being based on the first signal and a first gain. The apparatus includes an attenuator configured to attenuate the output signal based on a second gain and provide as the second signal an attenuated version of the output signal.

Abstract translation: 一种装置包括被配置为振荡器的一部分的微机电系统（MEMS）装置。 MEMS器件包括从MEMS的衬底悬挂的质量，第一电极，被配置为基于质量的位移提供第一信号，以及第二电极，被配置为基于第一信号接收第二信号。 该装置包括耦合到第一电极和第一节点的放大器。 放大器被配置为产生输出信号，输出信号基于第一信号和第一增益。 该装置包括衰减器，其被配置为基于第二增益来衰减输出信号，并将输出信号的衰减版本提供为第二信号。