IQ Switch ProxSense Series ProxSense IQS333 Datasheet 9 Channel Projected / 7 Channel Self- Capacitive Touch and Proximity Controller with 2 x 11-bit slider/scroll wheels The IQS333 ProxSense IC is a 9-channel projected (or 7-channel self) capacitive proximity and touch controller with best in class sensitivity, signal to noise ratio and power consumption. Other features include automatic tuning of sense electrodes, internal reference capacitor and internal regulator to reduce total system cost. Main Features 7 Self or 9 Mutual Channel Capacitive Controller 2 Configurable 11-bit sliders/scroll wheels Advanced on-chip digital signal processing RoHS2 Automatic adjustment for optimal performance (ATI) Compliant User selectable Proximity and Touch thresholds Long proximity range Automatic drift compensation 2 Fast I C Interface IQS333 QFR32 Event mode or Streaming modes Representations only, not actual markings 8 PWM LED/Output drivers (5mA source/10mA sink) 2 o Hardware PWM set through I C memory map no overhead from host o Dimming modes available, up and down o Minimum, maximum & adjustable limit levels for dimming modes Low Power, suitable for battery applications Supply voltage: 1.8V to 3.6V <3A Active sensing in LP mode Applications White goods and appliances Office equipment, toys Medical and test equipment Blu-Ray, DVD players, TVs Available options QFR(5x5)-32 T A -20C to 85C IQS333 Copyright Azoteq (Pty) Ltd 2019. IQS333 Datasheet Page 1 of 56 All rights reserved. Revision 1.14 February 2020 IQ Switch ProxSense Series Contents FUNCTIONAL OVERVIEW ............................................................................................................................................ 3 1 INTRODUCTION .................................................................................................................................................. 3 2 ANALOGUE FUNCTIONALITY............................................................................................................................... 3 3 DIGITAL FUNCTIONALITY .................................................................................................................................... 3 4 HARDWARE CONFIGURATION ............................................................................................................................ 4 5 USER CONFIGURABLE OPTIONS ......................................................................................................................... 11 6 PROXSENSE MODULE ....................................................................................................................................... 17 7 COMMUNICATION ............................................................................................................................................ 22 8 RF NOISE ........................................................................................................................................................... 27 9 COMMUNICATION COMMAND/ADDRESS STRUCTURE ..................................................................................... 29 10 IQS333 OTP OPTIONS ........................................................................................................................................ 40 11 SPECIFICATIONS ................................................................................................................................................ 41 12 PACKAGE INFORMATION .................................................................................................................................. 45 13 DEVICE MARKING .............................................................................................................................................. 50 14 ORDERING INFORMATION ................................................................................................................................ 50 15 ERRATA ............................................................................................................................................................. 51 16 DATASHEET REVISION HISTORY ......................................................................................................................... 52 APPENDIX A. BUZZER CONFIGURATION ................................................................................................................. 53 APPENDIX B. CONTACT INFORMATION .................................................................................................................. 56 Copyright Azoteq (Pty) Ltd 2019. IQS333 Datasheet Page 2 of 56 All rights reserved. Revision 1.14 February 2020