概述:
MPU-9150為全球首例九軸運動感測追蹤(MotionTracking)組件,專為如智能型手機、平板計算機、配戴式傳感器等需要低功耗、低成本、高性能的消費性電子產品設備設計。
MPU-9150包含InvenSense的運動感測融合演算(MotionFusion)與運行校正韌件(run-time calibration firmware),可讓采用運動感測功能之產品的制造商,省去挑選、檢測、在系統階段整合各別組件時所須的費用與麻煩,并保證其感測組件融合算法(sensor fusion algorithms)與校正程序(calibration procedures),能提供消費者最佳性能(optimal performance)。
運動感測人機界面(Motion interface)已快速成為如智能型手機、平板計算機、游戲機、智能型電視等許多消費性電子產品的關鍵功能。能夠在自由空間追蹤動作,將動作轉換成輸入指令,使消費者能直覺性的與其電子產品互動。
MPU-9150內含運動感測融合演算與運行校正韌件,可讓消費性電子產品的制造商將具有成本效益的運動感測功能(cost effective motion-based functionality)商業化。
MPU-9150為系統級封裝(SiP:System in Package)產品,整合了兩個芯片:一為MPU-6050,含三軸陀螺儀、三軸加速器,內建可處理復雜之九軸運動感測融合算法的數字運動感測處理器(DMP:Digital Motion Processor);另一為AK8975,是三軸數字電子羅盤。MPU-9150所含之九軸運動感測融合算法,可連接所有內部的傳感器,收集整組感測數據。此產品為4x4x1mm的LGA包裝,為MPU-6050整合性六軸運動感測追蹤組件的兼容升級版,提供簡單的升級路徑,易于安裝在空間受限的板子上。
伴隨于MPU-9150的InvenSense運動感測應用(MotionApps)平臺,排除了采用運動感測之產品的復雜度(motion-based complexities),降低了運作系統在管理傳感器時的負荷,并為應用開發提供結構化的一套APIs。
為了精準追蹤快速與慢速的動作(motions),此產品內含之陀螺儀的可程控(user-programmable)全格感測范圍(full-scale range)為±250、±500、±1000、±2000°/sec (dps),加速器的可程控全格感測范圍為±2g、±4g、±8g、±16g,電子羅盤的全格感測范圍為±1200μT。
應用:
? Smartphones
? Tablets
? 3D remote controls for Internet connected DTVs and set top boxes
? Motion-based game controllers and 3D mice
? Motion-based portable gaming
? Wearable Sensors
產品特性:
? Digital-output 9-axis MotionFusion data in rotation matrix, quaternion, Euler Angle, or raw data format
? Tri-Axis angular rate sensor (gyro) with a sensitivity up to 131 LSBs/dps and a full-scale range of ±250, ±500, ±1000, and ±2000dps
? Tri-Axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g and ±16g
? Tri-axis compass with a full scale range of ±1200μT
? Digital Motion Processing? (DMP?) engine offloads complex MotionFusion, sensor timing synchronization and gesture detection
? MotionApps? Platform support for Android, Linux, and Windows
? Embedded algorithms for run-time bias and compass calibration. No user intervention required
? VDD Supply voltage range of 2.4V–3.46V; VLOGIC of 1.8V±5% or VDD
? Gyro operating current: 3.6mA (full power, gyro at all rates)
? Gyro + Accel operating current: 3.8mA (full power, gyro at all rates, accel at 1kHz sample rate)
? Gyro + Accel + Compass + DMP operating current: 4.25mA (full power, gyro at all rates, accel at 1kHz sample rate, compass at 8Hz rate)
? Full Chip Idle Mode Supply Current: 8μA
? 400kHz Fast Mode I2C serial host interface
? Smallest and thinnest package for portable devices (4x4x1.06mm)
產品方塊圖: