QT60161B

LQ QT60161B 16 KEY QMatrix™ KEYPANEL SENSOR IC Advanced second generation QMatrix controller 16 touch keys through any dielectric 100% autocal for life - no adjustments required SPI Slave or Master/Slave interface to a host controller Parallel scan interface for electromechanical compatibility Keys individually adjustable for sensitivity, response time, and many other critical parameters Sleep mode with wake pin Synchronous noise suppression Mix and match key sizes & shapes in one panel Adjacent key suppression feature Panel thicknesses to 5 cm or more Low overhead communications protocol 44-pin TQFP package MOSI MISO SCK RST Vdd Vss XTO XTI RX TX WS CS1B CS1A CS0B CS0A Vdd Vss LED DRDY VREF SO SS 44 43 42 41 40 39 38 37 36 35 34 1 33 2 32 3 31 4 30 5 QT60161B 29 6 TQFP-44 28 7 27 8 26 9 25 10 24 11 23 12 13 14 15 16 17 18 19 20 21 22 CS2A CS2B CS3A CS3B Aref AGnd AVdd YS3 YS2 YS1 YS0 XS3 XS2 XS1 XS0 Vss Vdd X3 X2 X1OPB X0OPA SMP APPLICATIONS - Security keypanels Industrial keyboards Appliance controls Outdoor keypads ATM machines Touch-screens Automotive panels Machine tools The QT60161B digital charge-transfer (“QT”) QMatrix™ IC is designed to detect human touch on up 16 keys when used in conjunction with a scanned, passive X-Y matrix. It will project the keys through almost any dielectric, e.g. glass, plastic, stone, ceramic, and even wood, up to thicknesses of 5 cm or more. The touch areas are defined as simple 2-part interdigitated electrodes of conductive m...