Freescale MMA8451Q智能低功耗三轴加速度计解决方案.docx

Freescale MMA8451Q 智能低功耗三轴加速度计解决方案关键字:工业控制,传感器,加速度计 Freescale 公司的 MMA8451Q 是智能低功耗三轴容性微机械数字加速度计, 具有 14位分辨率,3x3x1mmQF N封装,电源电压 -, 接口电压 -, 动态可选择满刻度为± 2g/ ± 4g/ ± 8g ,输出数据速率(ODR) 从 Hz 到 800 Hz, 噪音为 99 μ g/√ Hz ,定流消耗 6μA– 165 μ A,主要用在电子罗盘,静态位置检测, 笔记本电脑,电子书,实时位置检测,手持产品运动检测,震动和振动监测, MMA8451 Q主要特性,框图,应用框图以及 MMA845 X系列传感器加速计工具箱 LFSTBEB845X 主要特性,电路图以及 MMA8451/2/3Q 电路图与 PCB 布局图. The MMA8451Q isa smart low-power, three-axis, capacitive micromachined accelerometer with 14 bits of resolution. This accelerometer is packed with embedded functions with flexible user programmable options, configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data. There is access to both low-pass filtered data as well as high-pass filtered data, which minimizes the data analysis required for jolt detection and faster transitions. The device can be configured to generate inertial wakeup interrupt signals from bination of the configurable embedded functions allowing the MMA8451Q to monitor events and remain ina low power mode during periods of inactivity. The MMA8451Q is available ina3 mm by3 mm by1 mm QFN package. MMA8451Q 主要特性:? to supply voltage ? to interface voltage ?± 2g/ ± 4g/ ± 8g dynamically selectable full-scale ? Output Data Rates (ODR) from Hz to 8