| 发明名称 |
USE OF ELECTRONIC ATTENUATOR FOR MEMS OSCILLATOR OVERDRIVE PROTECTION |
| 摘要 |
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. |
| 申请公布号 |
US2014176248(A1) |
申请公布日期 |
2014.06.26 |
| 申请号 |
US201213721630 |
申请日期 |
2012.12.20 |
| 申请人 |
Silicon Laboratories Inc. |
发明人 |
Caffee Aaron;Seth Manu;Drost Brian |
| 分类号 |
H03B5/30;B81B7/02 |
主分类号 |
H03B5/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus comprising:
a microelectromechanical system (MEMS) device configured as part of an oscillator comprising:
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; anda second electrode configured to receive a second signal based on the first signal; an amplifier coupled to the first electrode and a first node, the amplifier configured to generate an output signal, the output signal being based on the first signal and a first gain; and 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. |
| 地址 |
US |
