PART NUMBER: 2g / 4g / 8g Tri-axis Digital KXTIA-1006 Rev. 4 Accelerometer Specifications Dec-2012 Product Description The KXTIA is a tri-axis +/-2g, +/-4g or +/-8g silicon micromachined accelerometer with integrated orientation, tap/double tap, and activity detecting algorithms. The sense element is fabricated using Kionixs proprietary plasma micromachining process technology. Acceleration sensing is based on the principle of a differential capacitance arising from acceleration-induced motion of the sense element, which further utilizes common mode cancellation to decrease errors from process variation, temperature, and environmental stress. The sense element is hermetically sealed at the wafer level by bonding a second silicon lid wafer to the device using a glass frit. A separate ASIC device packaged with the sense element provides signal conditioning, and intelligent user- programmable application algorithms. The accelerometer is delivered in a 3 x 3 x 0.9 mm LGA plastic package operating from a 1.8 3.6V DC supply. Voltage regulators are used to maintain constant internal operating voltages over the range of input supply voltages. This results in stable operating characteristics over the range of input supply voltages and virtually undetectable ratiometric error. The SPI digital protocol is used to communicate with the chip to configure and check for updates TM to the orientation, Directional Tap detection and activity monitoring algorithms. 36 Thornwood Dr. Ithaca, NY 14850 2011 Kionix All Rights Reserved tel: 607-257-1080 fax:607-257-1146 579-4177-1212201147 www.kionix.com - info kionix.com Page 1 of 63 PART NUMBER: 2g / 4g / 8g Tri-axis Digital KXTIA-1006 Rev. 4 Accelerometer Specifications Dec-2012 Functional Diagram X Sensor Y Charge A/ D Sensor Amp Z Temp Sensor Sensor Digital Vdd 5 Filter SPI 1 IO Vdd Digital Engine 4 GN D 6 8 9 10 7 nCS SDO SDI SCLK IN T 36 Thornwood Dr. Ithaca, NY 14850 2011 Kionix All Rights Reserved tel: 607-257-1080 fax:607-257-1146 579-4177-1212201147 www.kionix.com - info kionix.com Page 2 of 63