SMART PROXIMITY SENSING PRODUCT BRIEF KEY FEATURES • Low power operation –– 1.65V to 3.7V (SX8651/53) –– 2.3V to 3.6V (SX8674/75/76/77/78) –– 30µA @ 2.3V 8ksps –– 0.4µA stand-by current • 4/5-wire touch screen interface with programmable digital filtering/averaging • Supports various multi-touch gestures such as pinch/stretch/rotate on low cost 4-wire resistive touch screen • Fully programmable proximity sensing (SX8674/76) –– > 5cm detection distance –– No additional components required • Built-in haptics driver for LRA and ERM (SX8674/75) –– Up to 250 mA drive capability –– Short circuit and over temperature protection • On-chip ESD protection up to ±15kV • Ultra-small footprint solution: –– SX8651/53: 1.46 mm x 1.96 mm 12-WLCSP, 3 mm x 3mm 12-DFN, 4 mm x 3mm 14-DFN –– SX8674/75/76/77/78: 2.07 mm x 2.07mm 19-WLCSP, 4 mm x 4mm 20-QFN SX8651/53/74/75/76/77/78 RESISTIVE TOUCH SCREEN CONTROLLER It is the world’s first haptics enabled, multi-touch resistive touch screen controller with proximity sensing and ±15kV ESD protection. The SX8674, SX8675 and SX8676 belong to a family of high performance, haptics-enabled multi-touch, 4/5-wire resistive touch screen controllers with proximity detection that are optimized for hand held applications such as mobile phones, portable music players, game machines, point-of-sales terminal, and other consumer and industrial applications. They feature a wide input supply ranging from 2.3V to 3.6V. • Dedicated hardware reset pin SX8674 • 400kHz I²C interface APPLICATIONS • Game machines, portable music players • Mobile phones • DSC • GPS • Conference phone • Home appliance control panels • POS/POI terminals • Touch screen monitors VDD GND 32K & 1.8 MHz OSC POR IBIAS VREG X+/BR Y+/TR LDO MGND HAPTICS INTERFACE TEMP SENSOR MOUTP MOUTN MIN ADDR TOUCHSCREEN/ PROXIMITY SENSING INTERFACE NRST NIRQ CTRL X-/TL Y-/BL MVDD ANALOG SENSING 12-ADC DIGITAL PROCESSING HOST I/F SCL SDA AUX2 AUX1/WIPER AUX3 SX8674 Block Diagram www.semtech.com 1 SMART PROXIMITY SENSING PRODUCTS | PRODUCT BRIEF Electrical Characteristics Symbol Description Condition Min Typ Max Unit 2.3 - 3.6 V - 0.4 0.75 µA 1.7 - µA Supply VDD Main supply voltage OFF (MAN mode, no command, HAPT OFF) WAIT (PENDET/TRG mode, pen up, PROX OFF, HAPT OFF) IDD Main supply current MVDD Haptics supply voltage MIDD Haptics supply current TOUCH1 (PENTRG mode, pen down, X+Y, RATE=4kcps, Nfilt=1, POWDLY=0.5us, touch screen current excluded, HAPT OFF, VDD=2.3V) - 30 - µA TOUCH2 (PENTRG mode, pen down, X+Y, RATE=3kcps, Nfilt=7, POWDLY=0.5us, touch screen current excluded, HAPT OFF) - 120 160 µA PROX (PENDET/TRG mode, pen up, TOUCHRATE=80cps, PROX ON, SCANPERIOD=200ms, HIGHIM=ON, SENSITIVITY=Max, FREQ=150kHz, BOOST=OFF, HAPT OFF) - 8 20 µA HAPT (MAN mode, no command, LRA-PWM mode, MIN= 44.8kHz/50%, GAIN = Max, BW = 100, MOUTP/N floating, Squelch=011) - 115 145 µA VDD - 3.6 V OFF - 0.01 1 µA SQUELCH (LRA-PWM mode, MIN= 44.8kHz/50%, GAIN = Max, BW = 100, MOUTP/N floating, Squelch=011) - 6 10 µA MultiProximity touch Haptics TYPICAL APPLICATION CIRCUIT ORDERING INFORMATION Part Number Package (mm) SX8651IWLTRT 3x3 DFN-12 x SX8651ICSTRT 1.46x1.96 WLCSP-12 x SX8653IWLTRT 4x4 DFN-14 x SX8653ICSTRT 1.46x1.96 WLCSP-12 x SX8674IWLTRT 4x4 QFN-20 x x Generic x Generic SX8674ICSTRT 2.07x2.07 WLCSP-19 x SX8675IWLTRT 4x4 QFN-20 x Generic SX8675ICSTRT 2.07x2.07 WLCSP-19 x SX8676IWLTRT 4x4 QFN-20 x x Generic SX8676ICSTRT 2.07x2.07 WLCSP-19 x x SX8677IWLTRT 4x4 QFN-20 x x Immersion x Immersion SX8677ICSTRT 2.07x2.07 WLCSP-19 x SX8678IWLTRT 4x4 QFN-20 x Immersion SX8678ICSTRT 2.07x2.07 WLCSP-19 x Immersion visit www.semtech.com for more 200 Flynn Road, Camarillo, California 93012 • phone: (805) 498-2111 • fax: (805) 498-3804 Semtech and the Semtech logo are registered marks of Semtech Corporation. All other trademarks and trade names mentioned may be marks and names of their respective companies. Semtech reserves the right to make changes to, or discontinue any products described in this document without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any particular purpose. ©2016 Semtech Corporation. All rights reserved. SX8674-PB-0116