EVAL-KXTI9-1001 Kionix

PART NUMBER: 2g / 4g / 8g Tri-axis Digital KXTI9-1001 Rev. 3 Accelerometer Specifications Dec-2012 Product Description The KXTI9 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 2 error. I C digital protocol is used to communicate with the chip to configure and check for updates to TM 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 575-4177-1212131126 www.kionix.com - info kionix.com Page 1 of 55 PART NUMBER: 2g / 4g / 8g Tri-axis Digital KXTI9-1001 Rev. 3 Accelerometer Specifications Dec-2012 Functional Diagram X Sensor Y Charge A/ D Sensor Amp Temp Z Sensor Sensor Digital Vdd 5 Filter 2 I C IO Vdd 1 Digital Engine 4 GND 7 6 8 9 10 RSVD DNC SCL SDA INT 36 Thornwood Dr. Ithaca, NY 14850 2011 Kionix All Rights Reserved tel: 607-257-1080 fax:607-257-1146 575-4177-1212131126 www.kionix.com - info kionix.com Page 2 of 55