Smart MEMS sensor makes handhelds aware of both location and movement

Smart MEMS sensor makes handhelds aware of both location and movement

Said to be the first three-axis gyroscope with an embedded hardware accelerator engine for motion processing, the MPU-3000 motion-processing unit is an inertial sensing integrated device that enables concurrent operation of location-based services, 3D gaming, image stabilization, and gesture recognition in smart phones and other handheld devices. The single-chip CMOS MEMS IC covers a range of motions from 250°/s to over 2,000°/s with a noise specification of 0.03º/s/Hz.

For complete motion processing, the 4 x 4 x 0.9-mm IC includes built-in 16-bit ADCs, programmable digital filters, built-in six-axis sensor fusion capability, and I2 C or SPI digital interfaces. It is factory calibrated to 1% sensitivity, and consumes just 13 mW in operation.

The device extends the traditional inertial sensor architecture with its Digital Motion Processor (DMP) acceleration engine, which, together with an embedded FIFO, offloads high-frequency motion algorithm computations from the handheld’s application processor, thereby improving overall system performance.

The unit provides a dedicated I2 C interface for an external accelerometer, use of which lets the DMP perform six-axis sensor fusion on gyroscope and accelerometer outputs. The DMP can thus report quaternion data to the application processor, offloading it from sensor fusion computation and timing synchronization. Other features include a temperature sensor and an FSYNC pin for synchronizing image/video and GPS data. (Under $4 ea / prod qty — samples available now; prod qty, 2nd qtr.)

InvenSense , Sunnyvale , CA
Mike Housholder 408-988-7339 ext. 299

http://www.invensense.com