SX9510/11 8 Capacitive Buttons, LEDs, IR Decoder and Proximity Controller with Analog Outputs WIRELESS & SENSING PRODUCTS DATASHEET GENERAL DESCRIPTION KEY PRODUCT FEATURES The SX9510 and SX9511 are 8button capacitive Separate Core and I/O Supplies touch sensor controllers that include 8-channels of o 2.7V 5.5V Core Supply Voltage LED drivers, a buzzer, an IR detector and analog o 1.65V 5.5V I/O Supply Voltage outputs designed ideally for TV applications. The SX9510 offers proximity sensing. 8 - Button Capacitance Controller o Capacitance Offset Compensation to 40pF The SX9510 and SX9511 operate autonomously using a set of programmable button sensitivities & o Adaptive Measurements For Reliable Proximity And thresholds, plus LED intensities & breathing Button Detection functions with no external I2C communication Proximity Sensing (SX9510) required. o High Sensitivity All devices feature three individual LED driver engines for advanced LED lighting control. On the o LEDs Activated During Proximity Sense SX9510, a proximity detection illuminates all LEDs 8-channel LED Controller & Driver to a pre-programmed intensity. Touching a button o Blink And Breathing Control will enable the corresponding LED to a pre- o High Current, 15 mA LED Outputs programmed mode such as intensity, blinking or breathing. 2-Channel Analog Output, 6-bit DAC Programmable Whenever the capacitive value changes from Control either a proximity detection or finger Support Metal Overlay UI Design (SX9510) touch/release, the controller informs the host Infra Red Detector for Power-On signaling and LED processor through the analog output(s) or an open feedback drain interrupt and an I2C register read. o programmable address with eight commands The SX9510 and SX9511 do not require additional external dynamic programming support or setting o compatible with NEC, RC5, RC6, Toshiba, RCA, etc 2 of parameters and will adapt to humidity and Simple (400kHz) I C Serial Interface temperature changes to guarantee correct o Interrupt Driven Communication via NIRQ Output touch/no touch information. Power-On Reset, NRST Pin and Soft Reset Low Power The SX9510 and SX9511 are offered in 20-ld QFN o Sleep, Proximity Sensing: 330uA and 24-ld TSSOP packages and operate over an o Operating: 600uA ambient temperature range of -40C to +85C. -40C to +85C Operation 4.0 mm x 4.0 mm, 20-lead QFN package TYPICAL APPLICATION CIRCUIT 4.4 mm x 7.8 mm, 24-lead TSSOP package VDD SVDD CAPACITIVE Pb & Halogen free, RoHS/WEEE compliant TOUCH BUTTONS LED 7:0 BL0 IRIN APPLICATIONS IR-DECODER PWRON BL1 LCD TVs, Monitors CONTROL White Goods NRST BL2 AOUT2/ SPO2 Consumer Products, Instrumentation, Automotive NIRQ/ GPO/LED BUZZER/ BL3 ENGINE PWRSTATE TOUCH Mechanical Button Replacement SPO1 BUTTON & AOUT1 LED POR BL4 ANALOG DRIVER OUTPUT INTERFACE SVDD ORDERING INFORMATION BL5 OSC Part Number Package Marking 1 SDA BL6 ZK72 SX9511EWLTRT QFN-20 I2C SCL 2 AC72T NVM SX9511ETSTRT TSSOP-24 BL7 1 ZL73 SX9510EWLTRT QFN-20 2 AC73X SX9510ETSTRT TSSOP-24 LS GND - SX9510EVK Evaluation Kit 1 3000 Units/Reel 2 2500 Units/Reel Revision v1.12, November 2012 2012 Semtech Corp. www.semtech.com 1 SX9510/11 8 Capacitive Buttons, LEDs, IR Decoder and Proximity Controller with Analog Outputs WIRELESS & SENSING PRODUCTS DATASHEET Table of Contents GENERAL DESCRIPTION ........................................................................................................................ 1 TYPICAL APPLICATION CIRCUIT ............................................................................................................ 1 KEY PRODUCT FEATURES..................................................................................................................... 1 APPLICATIONS ....................................................................................................................................... 1 ORDERING INFORMATION...................................................................................................................... 1 1 GENERAL DESCRIPTION ............................................................................................................... 4 1.1 Pin Diagram SX9510/11 4 1.2 Marking information SX9511 4 1.3 Marking information SX9510 5 1.4 Pin Description 6 1.5 Simplified Block Diagram 7 1.6 Acronyms 7 2 ELECTRICAL CHARACTERISTICS ................................................................................................. 8 2.1 Absolute Maximum Ratings 8 2.2 Recommended Operating Conditions 8 2.3 Thermal Characteristics 8 2.4 Electrical Specifications 9 3 FUNCTIONAL DESCRIPTION ........................................................................................................ 11 3.1 Introduction 11 3.2 Scan Period 12 3.3 Operation modes 13 3.4 Sensors on the PCB 13 3.5 Button Information 14 3.6 Buzzer 15 3.7 Analog Output Interface 15 3.8 Analog Sensing Interface 17 3.9 IR Interface 20 3.10 Configuration 22 3.11 Clock Circuitry 22 3.12 I2C interface 22 3.13 Interrupt 23 3.14 Reset 24 3.15 LEDS on BL 26 4 DETAILED CONFIGURATION DESCRIPTIONS .............................................................................. 30 4.1 Introduction 30 4.2 General Control and Status 32 4.3 LED Control 35 4.4 CapSense Control 39 4.5 SPO Control 45 Revision v1.12, November 2012 2012 Semtech Corp. www.semtech.com 2