6-axis MotionTracking™ device

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The MPU-6881 is a 6-axis MotionTracking device that combines a 3-axis gyroscope, and a 3-axis accelerometer in a small 3x3x0.9mm (24-pin QFN) package. It also features a 4096-byte FIFO that can lower the traffic on the serial bus interface, and reduce power consumption by allowing the system processor to burst read sensor data and then go into a low-power mode. With its dedicated I2C sensor bus, the MPU-6881 directly accepts inputs from external I2C devices. MPU-6881, with its 6-axis integration, enables manufacturers to eliminate the costly and complex selection, qualification, and system level integration of discrete devices, guaranteeing optimal motion performance for consumers. MPU-6881 is also designed to interface with multiple non-inertial digital sensors, such as pressure sensors, on its auxiliary I2C port.

The gyroscope has a programmable full-scale range of ±250, ±500, ±1000, and ±2000 degrees/sec. The accelerometer has a user-programmable accelerometer full-scale range of ±2g, ±4g, ±8g, and ±16g. Factory-calibrated initial sensitivity of both sensors reduces production-line calibration requirements.

Other industry-leading features include on-chip 16-bit ADCs, programmable digital filters, a precision clock with 1% drift from -40°C to 85°C, an embedded temperature sensor, and programmable interrupts. The device features I2C and SPI serial interfaces, a VDD operating range of 1.71 to 3.45V, and a separate digital IO supply, VDDIO from 1.71V to 3.45V.

Communication with all registers of the device is performed using either I2C at 400kHz or SPI at 1MHz. For applications requiring faster communications, the sensor and interrupt registers may be read using SPI at 20MHz.

By leveraging its patented and volume-proven CMOS-MEMS Fabrication platform, which integrates MEMS wafers with companion CMOS electronics through wafer-level bonding, InvenSense has driven the package size down to a footprint and thickness of 3x3x0.9mm (24-pin QFN), to provide a very small yet high performance low cost package. The device provides high robustness by supporting 10,000g shock reliability.

• TouchAnywhere™ technology (for “no touch” UI Application Control/Navigation)
• MotionCommand™ technology (for Gesture Short-cuts)
• Motion-enabled game and application framework
• Location based services, points of interest, and dead reckoning
• Handset and portable gaming
• Motion-based game controllers
• 3D remote controls for Internet connected DTVs and set top boxes, 3D mice
• Wearable sensors for health, fitness and sports

Symmetry Electronics is an authorized InvenSense distributor.


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Digital-output X-, Y-, and Z-axis angular rate sensors (gyroscopes) with a user-programmable full-scale range of 250, 500, 1000, and 2000/sec and integrated 16-bit ADCs
Digitally-programmable low-pass filter
Gyroscope operating current: 3.2mA
Factory calibrated sensitivity scale factor
Self-test Digital-output X-, Y-, and Z-axis accelerometer with a programmable full scale range of 2g, 4g, 8g and 16g and integrated 16-bit ADCs
Accelerometer normal operating current: 450A
Low power accelerometer mode current: 7.27A at 0.98Hz, 18.65A at 31.25Hz
User-programmable interrupts
Wake-on-motion interrupt for low power operation of applications processor


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InvenSense Datasheet

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