公开(公告)号：US10247621B1

公开(公告)日：2019-04-02

申请号：US15264583

申请日：2016-09-13

申请人： SiTime Corporation

发明人： Aaron Partridge ,  Samira Zaliasl ,  Meisam Heidarpour Roshan ,  Sassan Tabatabaei

IPC分类号： H03L7/06 ,  G01K11/26 ,  H03L7/099 ,  H03K3/03

摘要： In a high resolution temperature sensor, first and second MEMS resonators generate respective first and second clock signals and a locked-loop reference clock generator generates a reference clock signal having a frequency that is phase-locked to at least one of the first and second clock signals. A frequency-ratio engine within the MEMS temperature sensor oversamples at least one of the first and second clock signals with the reference clock signal to generate a ratio of the frequencies of the first and second clock signals.

公开(公告)号：US11990908B1

公开(公告)日：2024-05-21

申请号：US16807979

申请日：2020-03-03

申请人： SiTime Corporation

发明人： Aaron Partridge ,  Samira Zaliasl ,  Meisam Heidarpour Roshan ,  Sassan Tabatabaei

IPC分类号： G01K7/32 ,  H03K3/03 ,  H03L1/02 ,  H03L7/099 ,  H03L7/18 ,  H03L7/197

CPC分类号： H03K3/0315 ,  G01K7/32 ,  H03L1/027 ,  H03L7/0991 ,  H03L7/18 ,  H03L7/1976

摘要： In a high resolution temperature sensor, first and second MEMS resonators generate respective first and second clock signals and a locked-loop reference clock generator generates a reference clock signal having a frequency that is phase-locked to at least one of the first and second clock signals. A frequency-ratio engine within the MEMS temperature sensor oversamples at least one of the first and second clock signals with the reference clock signal to generate a ratio of the frequencies of the first and second clock signals.