1、ST LSM303AGR 超小型高性能电子罗盘 3D 评估方案时间：2016-05-18 10:21:54 作者：ST 来源：中电网ST 公司的 LSM303AGR 是超小型高性能系统封装电子罗盘 eCompass 模块,集成了 3D 数字线性加速度传感器和 3D 数字磁传感器,以及支持标准, 快模式, 快模式+和高速(100 kHz, 400 kHz,1 MHz 和 3.4 MHz) I2C 串行接口和 SPI 串行标准接口.主要用在倾斜补偿指南针,地图旋转,位置检测,运动激活和自由落体检测.本文介绍了 LSM303AGR 主要特性,框图和电连接图,以及 LSM303AGR 适配板 STEV
2、AL-MKI172V1 主要特性 ,电路图和材料清单.The LSM303AGR is an ultra-low-power highperformancesystem-in-package featuring a 3Ddigital linear acceleration sensor and a 3D digitalmagnetic sensor.The LSM303AGR has linear acceleration fullscales of 2g/4g/8g/16g and a magnetic fielddynamic range of 50 gauss.The LSM303AG
3、R includes an I2C serial businterface that supports standard, fast mode, fastmode plus, and high-speed (100 kHz, 400 kHz,1 MHz, and 3.4 MHz) and an SPI serial standardinterface.The system can be configured to generate aninterrupt signal for free-fall, motion detection andmagnetic field detection.The
4、 magnetic and accelerometer blocks can beenabled or put into power-down mode separately.The LSM303AGR is available in a plastic landgrid array package (LGA) and is guaranteed tooperate over an extended temperature rangefrom -40 to +85.LSM303AGR 主要特性:3 magnetic field channels and 3 accelerationchanne
5、ls50 gauss magnetic dynamic range2/4/8/16 g selectable acceleration fullscales16-bit data outputSPI/I2C serial interfacesAnalog supply voltage 1.71 V to 3.6 VSelectable power mode/resolution foraccelerometer and magnetometerSingle measurement mode for magnetometerProgrammable interrupt generators fo
6、r freefall,motion detection and magnetic fielddetectionEmbedded self-testEmbedded temperature sensorEmbedded FIFOECOPACK, RoHS and “Green”compliantLSM303AGR 应用:Tilt-compensated compassesMap rotationPosition detectionMotion-activated functionsFree-fall detection图 1.LSM303AGR 框图图 2. LSM303AGR 电连接图标准 D
7、IL 24 插座 LSM303AGR 适配板 STEVAL-MKI172V1The STEVAL-MKI172V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the LSM303AGR product family. The board offers an effective solution for fast system prototyping and device evaluation directly within the users own application. The
8、 STEVAL-MKI172V1 can be plugged into a standard DIL 24 socket. The adapter provides the complete LSM303AGR pinout and comes ready-to-use with the required decoupling capacitors on the VDD power supply line. This adapter is supported by the STEVAL-MKI109V2 motherboard which includes a high performanc
9、e 32-bit microcontroller functioning as a bridge between the sensor and a PC, on which it is possible to use the downloadable graphical user interface (Unico GUI), or dedicated software routines for customized applications.LSM303AGR 适配板 STEVAL-MKI172V1 主要特性:Complete LSM303AGR pinout for a standard DIL 24 socket Fully compatible with the STEVAL-MKI109V2 motherboard RoHS compliant 图 3.LSM303AGR 适配板 STEVAL-MKI172V1 外形图图 4.LSM303AGR 适配板 STEVAL-MKI172V1 电路图LSM303AGR 适配板 STEVAL-MKI172V1 材料清单:AO-Electronics 傲壹电子 官网： 中文网：ALPS ADI IR JRC/NJR KEC OTAX Seoul Semiconductor TI Walsin Technology
