No.52836 作者:plczhan 邮件:plczhan@163.com ID:34514 登陆:15次 文章数:35篇 最后登陆IP:116.205.105.31 最后登陆:2010/6/11 10:49:42 注册:2005/5/20 14:30:17 财富:131 发帖时间:2008/12/1 20:39:54 发贴者IP:58.60.88.113 标题:plczhan:SHINEYOUNG 芯扬国际 强势提供MMA7455L 加速度传感器[原创] 摘要:No.52836SHINEYOUNG 芯扬国际 强势提供MMA7455L 加速度传感器[原创]
点击浏览该文件 飞思卡尔(Freescale)公司的MMA7455L是小型低功耗±2g/±4g/±8g三轴数字输出加速度计,具有信号调理,低通滤波器,温度补偿,自测,以及可配置到检测0g或脉冲检测快速运动等功能,工作电压2.4V到3.6V,典型应用在手机,PMP,PDA,硬盘驱动(HDD),笔记本电脑,步程计和运动检测等.本文介绍了MMA7455L主要特性, 简化功能方框图, I2C接口到MCU的连接图与电路图以及SPI接口到MCU的连接图与电路图. MMA745xL:±2g/±4g/±8g Three Axis Low-g Digital Output Accelerometer The MMA7455L is a Digital Output (I2C/SPI), low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a low pass filter, temperature compensation, self-test, configurable to detect 0g through interrupt pins (INT1 or INT2), and pulse detect for quick motion detection. 0g offset and sensitivity are factory set and require no external devices. The 0g offset can be customer calibrated using assigned 0g registers and g-Select which allows for command selection for 3 acceleration ranges (2g/4g/8g). The MMA7455L includes a Standby Mode that makes it ideal for handheld battery powered electronics. MMA7455L主要特性: ......
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