IQS525-A000 QNR

ProxSense IQS550/572/525/512 Capacitive Controller Platform IQS5xx-A000 Trackpad/Touchscreen Controller Multiple Channel Projected Capacitive Controller, with Proximity, Touch and Snap The IQS5xx-A000 is a projected capacitive touch and proximity trackpad/touchscreen controller implementation on the IQS550, IQS572, IQS525 and IQS512 platforms. The IQS5xx-A000 features best in class sensitivity, signal-to-noise ratio and automatic tuning of electrodes. Low power proximity detection allows extreme low power operation. Main Features Proximity, touch and snap* on each channel Multi-touch and multi-hover support 3584 x 2304 resolution (IQS550) 2 TM I C communications interface ATI: automatic tuning for optimum sensitivity Supply Voltage 1.65V to 3.6V Proximity low power operation (<10uA) Event mode and streaming modes Dedicated proximity channel for long range proximity sensing Internal voltage regulator and reference capacitor On-chip noise detection and suppression IQS550 IQS572 IQS525 IQS512 Maximum channels 150 72 25 12 Minimum report rate 100Hz 170Hz 220Hz 400Hz (with dual touch / max channels active) Resolution 3584 x 2304 2048 x 1792 1280 x 768 768 x 512 (for shown Tx Rx configurations) (15 x 10) (9 x 8) (6 x 4) (4 x 3) Applications Compact Capacitive Keyboards Remote Control Trackpads Appliances Navigation devices Kiosks and POS terminals E-readers Consumer electronics Available options T QFN(7x7)-48 QFN(4x4)-28 QFN(4x4)-28 TSSOP-20 A IQS550 IQS572 IQS525 IQS512 -40C to 85C *patents pending Copyright Azoteq (Pty) Ltd IQS5xx-A000 Trackpad Datasheet Page 1 of 79 All Rights Reserved. Revision 1.12 June 2016 IQ Switch ProxSense Series Contents 1 Overview ............................................................................................................................................................ 6 2 Packaging and Pin-out ........................................................................................................................................ 7 2.1 IQS550 - QFN48 ................................................................................................................................................. 7 2.2 IQS572 - QFN28 ................................................................................................................................................. 9 2.3 IQS525 - QFN28 ............................................................................................................................................... 11 2.4 IQS512 - TSSOP20 ............................................................................................................................................ 13 3 ProxSense Module ........................................................................................................................................... 15 3.1 Individual Channels ......................................................................................................................................... 15 3.2 Normal Mode Charging ................................................................................................................................... 15 3.3 ProxMode Charging ......................................................................................................................................... 15 3.4 Automatic Mode Switching ............................................................................................................................. 16 3.5 Low Power Charging........................................................................................................................................ 16 3.5.1 Low-Power with Automatic Mode Switching ............................................................................................. 16 3.5.2 Low-Power in Normal Mode ....................................................................................................................... 16 3.5.3 Low-Power in ProxMode............................................................................................................................. 16 3.6 Data Report Rate ............................................................................................................................................. 16 3.7 Count Value Filter ............................................................................................................................................ 17 3.7.1 Filter in Normal Mode ................................................................................................................................. 17 3.7.2 Filter in ProxMode ...................................................................................................................................... 17 3.8 Environmental Drift ......................................................................................................................................... 17 3.8.1 Long-Term Average Filter............................................................................................................................ 17 3.8.2 Filter Halt .................................................................................................................................................... 17 3.9 Auto Tuning (ATI) ............................................................................................................................................ 17 3.10 Snap* (Metal-Dome click) ............................................................................................................................... 17 3.11 Proximity Sensitivity ........................................................................................................................................ 18 3.12 Touch Sensitivity .............................................................................................................................................. 18 3.13 Snap Sensitivity ................................................................................................................................................ 19 3.14 Output Debounce ............................................................................................................................................ 19 3.15 Touch and Proximity XY Data .......................................................................................................................... 19 3.16 Position Tracking ............................................................................................................................................. 20 3.17 Touch Co-ordinate Filtering ............................................................................................................................. 20 3.17.1 Dynamic Filter ......................................................................................................................................... 20 3.17.2 Static Filter .............................................................................................................................................. 20 3.18 Hover / Prox Co-ordinate Filtering .................................................................................................................. 20 3.19 Position adjustment / Calibration................................................................................................................... 20 3.20 Touch Strength ................................................................................................................................................ 20 3.21 Physical Layout ................................................................................................................................................ 20 Copyright Azoteq (Pty) Ltd IQS5xx-A000 Trackpad Datasheet Page 2 of 79 All Rights Reserved. Revision 1.12 June 2016