IQS316 Datasheet | Azoteq

features , including Antenna Tuning Implementation (ATI). Proximity detection can be distributed over all keys, or only selected keys, providing high flexibility for stable operation in varying designs. The controller is based on patented capacitive sensing technology that yields stability with high sensitivity and excellent noise immunity. This controller can operate with a small number of external ponents to provide a low cost solution for medium to high channel count applications. Main Features 16 Touch Keys with distributed Proximity Sensing Internal Capacitor Implementation (ICI). No external reference capacitors required Class leading proximity sensitivity with dedicated Prox Mode charging scheme User selectable gain through Antenna Tuning Implementation (ATI) All channels individually configurable for maximum design flexibility Advanced on-chip signal processing User selectable I2C and SPI munication High sensitivity Internal voltage regulator Supply voltage 2.85V-5.5V Low power modes (45u A) Active shield options RF detection Available in QFN(5x5)-32 package 8 General Purpose I/O’s Applications Representation only, not actual marking Office machines Digital cameras Keypads High-end kitchen appliances Personal Media Players Consumer Electronics White goods and appliances Kiosk and POS Terminals Launch a menu on user approaching Available options TA -40°C to 85°C QFN32 IQS316 Copyright © Azoteq (Pty) Ltd 2015 All rights reserved. IQS316 Datasheet Revision 1.02 Page 1 of 27 April 2015 IQ Switch® Prox Sense® Series Contents IQS316 Datasheet 1 5.2.2 5.2.3 5.2.4 5.2.5 Cx Sensors Requiring Shield 12 Cx Sensors Used For Prox 12 Cx Sensors plus I/O’s 13 Unused Cx’s 13 6 munication 13 1 Overview...