FACT SHEET | SENTRAL Subject to change without notice Version 1.0, 23-OCT-14 Copyright © 2014, EM Microelectronic-Marin SA www.emmicroelectronic.com Motion Coprocessor General Description SENtral is a powerfully freeing way of doing sensor fusion. ® SENtral saves power. With top-of the-line embedded 9-axis sensor fusion algorithms, SENtral is an extremely low-power motion coprocessor that completely offloads all motion sensor management and fusion work from your application processor thus saving you loads of power and a ton of headaches. Because it’s an ultra low-power chip tailor-made for motion sensor fusion, it fuses and continuously auto-calibrates the sensors for always-on requirements. All at a small fraction of the power of even a low power microcontroller sensor hub. In fact SENtral draws less than 1% of the power of 9-axis sensor fusion running on a Cortex M0 processor running less robust fusion algorithms without continuous auto-calibration. It moves 9-axis sensor fusion work off the application processor or hub processor onto an ultra low-power ncoprocessor that’s 100 times more power efficient, consuming less than 100 μA. Essential to the always-on requirements of motion sensors in mobile devices and the low power requirements of wearable devices. For unparalleled sensor fusion that consumes only 1% as much power as other processors. Operating Specifications Accuracy 2° rms Data Update Rate 400 Hz Max Latency <1 video frame Outputs Heading, Pitch, & Roll, Rotation Matrix, Quaternions, Sensor Data Variable Kalman Update rate 30 Hz Max Supply Voltage (VDD) 1.6 to 3.3 VDC Current Consumption Peak 800µA Typical <100µA at 7Hz Kalman update rate Standby 5µA SENtral runs “best-in-class” 9-axis sensor fusion with 2 degrees of accuracy. Using continous autocalibration technology, it polls individual sensors, integrating, fusing and filtering their data with patented Kalman filter algorithms. SENtral uses much faster sampling rates to deliver output that is lightening quick, accurate and immune to magnetic interference. I2C Interface Frequency 100 to 3400 kHz Dimensions 1.6 x 1.6 x 0.5mm Operating Temperature -40 to °85 C Works with any sensor from any manufacturer. The SENtral motion coprocessor makes it practical because it supports virtually all gyroscopes, accelerometers and magnetic sensors from virtually any vendor. It allows you the control and flexibilitym you need. Specification are subject to change Sensor fusion that won’t hold you up. For many customers, working out the subtleties of sensor integration, signal enhancement, calibration, magnetic interference, sensor drift and power consumption has proven to be more difficult than first thought. It’s time consuming work that can delay product releases. Made with real world expertise. SENtral’s 9-axis sensor fusion technology is custom engineered by PNI Sensor, a leading expert in high end sensor fusion, and is built on a tailor-made ultra low-power coprocessor from EM Microelectronic, experts in producing ultra-low power microelectronic components. FACT SHEET | SENTRAL Subject to change without notice Version 1.0, 23-Oct-14 Copyright © 2014, EM Microelectronic-Marin SA www.emmicroelectronic.com AVDD 1.8V DVIO R1 DRDY GND SDA Accelerometer Gyro AGND DVIO SCL VDD SDA AGND DRDY GND VDD DVIO SCL SDA Magnetometer DVIO SCL VDD AGND DRDY R2 C1 10uF SCLS R3 C2 1uF VDD Creg 1.0uF VREG SDAS INT1 SENTRAL SCLM SCL SDAM SDA SA0 INT3 INTO HOST SYSTEM TM INT2 GND R4 GND XINT GND About PNI Sensor About EM Microelectronic-Marin SA PNI Sensor Corporation is the leader in the exacting science of producing pinpoint heading and orientation technology and algorithms for the consumer, military, scientific and oceanography communities. Building on decades of patented sensor development, PNI offers highly accurate magneto inductive sensor systems and 9-axis sensor fusion technology. Its products are used in consumer electronics, robotics, surveying, navigation and automotive applications across the globe. Founded in 1975, EM Microelectronic is a division of Swatch Group of Switzerland designing and producing several hundreds of millions of miniaturized, ultra-low power integrated circuits annually for more than 150 customers in 35 countries. It is today a leader in supplying electronic circuits for battery operated and field-powered applications. To learn more, please visit www.pnicorp.com. EM produces standards as well as customer specific ICs for applications in the field of consumer and industrial electronics, automotive, telecommunications, and computer peripherals industries. The company is certified to the international standards ISO9001:2000 and ISO/ TS16949:2002. To learn more, please visit www.emmicroelectronic.com. PNI Sensor Corporation EM Microelectronic-Marin SA 2331 Circadian Way Rue des Sors 3 Santa Rosa, CA 85407 2074 Marin USA Switzerland Phone: +1-707-566-2260 Phone: +41 (0)32 755 5111 www.pincorp.com www.emmicroelectronic.com SENtral is a registered trademark of PNI Sensor Corporation