KMX62-1031-SR Kionix

PART NUMBER: Digital Tri-axis Magnetometer/ KMX62-1031 Tri-axis Accelerometer Rev. 3.0 Specifications 1-Mar-16 Product Description KMX62 is a 6 Degrees-of-Freedom inertial sensor system that features 2 16-bit digital outputs accessed through I C communication. The KMX62 sensor consists of a tri-axial magnetometer plus a tri-axial accelerometer coupled with an ASIC. It is packaged in a 3 x 3 x 0.9mm Land Grid Array (LGA) package. The ASIC is realized in standard 0.18um CMOS technology and features flexible user programmable 2g/4g/8g/16g full scale range for the accelerometer. Accelerometer and Magnetometer data can be accumulated in an internal 384 byte FIFO buffer and transmitted to the application processor. Acceleration sensing is based on the principle of a differential capacitance arising from acceleration-induced motion of the sense element, which utilizes common mode cancellation to decrease errors from process variation, temperature, and environmental stress. Capacitance changes are amplified and converted into digital signals which are processed by a dedicated digital signal processing unit. The digital signal processor applies filtering, bias and sensitivity adjustment, as well as temperature compensation. Magnetic sensing is based on the principle of magnetic impedance. The magnetic sensor detects very small magnetic fields by passing an electric pulse through a special electron spin aligned amorphous wire. Due to the high Curie temperature of the wire, the sensors thermal performance shows excellent stability. Noise performance is excellent with bias stability over temperature. Bias errors resulting from assembly can be trimmed digitally by the user. These sensors can accept supply voltages between 1.7V and 3.6V, and digital communication voltages between 1.2 and 3.6V. 36 Thornwood Dr. Ithaca, NY 14850 2015 Kionix All Rights Reserved tel: 607-257-1080 fax:607-257-1146 www.kionix.com - info kionix.com Page 1 of 61 PART NUMBER: Digital Tri-axis Magnetometer/ KMX62-1031 Tri-axis Accelerometer Rev. 3.0 Specifications 1-Mar-16 Table of Contents PRODUCT DESCRIPTION .................................................................................................................................................................... 1 TABLE OF CONTENTS ......................................................................................................................................................................... 2 FUNCTIONAL DIAGRAM .................................................................................................................................................................... 5 PRODUCT SPECIFICATIONS ................................................................................................................................................................ 6 MAGNETOMETER SPECIFICATIONS ................................................................................................................................................................. 6 ACCELEROMETER SPECIFICATIONS .................................................................................................................................................................. 7 NOISE DIAGRAMS ....................................................................................................................................................................................... 8 TEMPERATURE SENSOR ................................................................................................................................................................................ 9 ELECTRICAL SPECIFICATIONS.......................................................................................................................................................................... 9 CURRENT CONSUMPTION DIAGRAMS ........................................................................................................................................................... 10 START UP TIME DIAGRAMS ........................................................................................................................................................................ 11 POWER-ON PROCEDURE ............................................................................................................................................................................ 12 2 I C TIMING DIAGRAM ............................................................................................................................................................................... 13 ENVIRONMENTAL SPECIFICATIONS ............................................................................................................................................................... 14 Soldering .......................................................................................................................................................................................... 14 APPLICATION SCHEMATIC ........................................................................................................................................................................... 15 PIN DESCRIPTIONS .................................................................................................................................................................................... 15 PACKAGE DIMENSIONS AND ORIENTATION .................................................................................................................................................... 16 Dimensions ....................................................................................................................................................................................... 16 Orientation ....................................................................................................................................................................................... 17 DIGITAL INTERFACE ......................................................................................................................................................................... 18 2 I C SERIAL INTERFACE ................................................................................................................................................................................ 18 2 I C OPERATION ........................................................................................................................................................................................ 19 WRITING TO A KMX62 8-BIT REGISTER ........................................................................................................................................................ 20 READING FROM A KMX62 8-BIT REGISTER.................................................................................................................................................... 20 DATA TRANSFER SEQUENCES ...................................................................................................................................................................... 21 HS-MODE ............................................................................................................................................................................................... 22 POWER MODES ............................................................................................................................................................................... 23 OFF MODE .............................................................................................................................................................................................. 23 INITIAL STARTUP ....................................................................................................................................................................................... 23 STAND-BY MODE ...................................................................................................................................................................................... 24 SLEEP MODE ............................................................................................................................................................................................ 24 LOW POWER (<RES> = 00 OR 01) MODE ..................................................................................................................................................... 24 HIGH RESOLUTION (<RES> = 10 OR 11) MODE ............................................................................................................................................. 24 EMBEDDED REGISTERS.................................................................................................................................................................... 25 REGISTER DESCRIPTIONS................................................................................................................................................................. 26 36 Thornwood Dr. Ithaca, NY 14850 2015 Kionix All Rights Reserved tel: 607-257-1080 fax:607-257-1146 www.kionix.com - info kionix.com Page 2 of 61