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    Apparatus with sensor functionality and power management and associated methods
    1.
    发明申请
    Apparatus with sensor functionality and power management and associated methods 审中-公开
    具有传感器功能和功率管理及相关方法的设备

    公开(公告)号：US20150122996A1

    公开(公告)日：2015-05-07

    申请号：US14555500

    申请日：2014-11-26

    Applicant: Silicon Laboratories Inc.

    Inventor： Timothy T. Rueger ,  William Hong ,  David Andreas

    IPC: G01J1/42 ,  G01S17/08 ,  G01J1/44

    CPC classification number: G01J1/4204 ,  G01J1/44 ,  G01S3/7803 ,  G01S3/7835 ,  G01S7/4811 ,  G01S7/4913 ,  G01S7/497 ,  G01S7/4972 ,  G01S11/12 ,  G01S17/026 ,  G01S17/08 ,  G01S17/46 ,  G01V8/20

    Abstract: In an exemplary embodiment, an apparatus includes a sensor integrated circuit (IC) that is adapted for ambient light sensing (ALS) and/or proximity detection. The sensor integrated circuit (IC) includes an integrated analog-to-digital converter (ADC) that is adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal, and an integrated light emitting diode (LED) driver that is adapted to drive at least one LED. The sensor IC also includes an integrated power management unit (PMU) that is adapted to reduce power dissipation of the sensor IC by running at a low duty cycle the integrated LED driver and the integrated ADC.

    Abstract translation: 在示例性实施例中，装置包括适于环境光感测（ALS）和/或接近检测的传感器集成电路（IC）。 传感器集成电路（IC）包括集成模数转换器（ADC），其适于将与环境光感测（ALS）和/或接近检测相关的至少一个信号转换为至少一个数字信号，以及 集成发光二极管（LED）驱动器，其适于驱动至少一个LED。 传感器IC还包括集成电源管理单元（PMU），其适用于通过以低占空比运行集成LED驱动器和集成ADC来降低传感器IC的功耗。

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