Renesas Electronics America Inc. © 2012 Renesas Electronics America Inc. All rights reserved. Capacitive Touch Based User Interfaces and Hardware-based Solutions © 2012 Renesas Electronics America Inc. All rights reserved.2 Renesas Technology & Solution Portfolio © 2012 Renesas Electronics America Inc. All rights reserved.3 Microcontroller and Microprocessor Line-up Wide Format LCDs Industrial & Automotive, 130nm 350µA/MHz, 1µA standby 44 DMIPS, True Low Power Embedded Security, ASSP 165 DMIPS, FPU, DSC 1200 DMIPS, Performance 1200 DMIPS, Superscalar 500 DMIPS, Low Power 165 DMIPS, FPU, DSC 25 DMIPS, Low Power 10 DMIPS, Capacitive Touch Industrial & Automotive, 150nm 190µA/MHz, 0.3µA standby Industrial, 90nm 242µA/MHz, 0.2µA standby Automotive & Industrial, 90nm 600µA/MHz, 1.5µA standby Automotive & Industrial, 65nm 600µA/MHz, 1.5µA standby Automotive, 40nm 500µA/MHz, 35µA deep standby Industrial, 40nm 242µA/MHz, 0.2µA standby Industrial, 90nm 1mA/MHz, 100µA standby Industrial & Automotive, 130nm 144µA/MHz, 0.2µA standby 2010 2013 32-bit8/16-bit © 2012 Renesas Electronics America Inc. All rights reserved.4 Challenge: “Embedded designs are increasingly being incorporated in new, innovated interfaces. How can the engineer keep up with the increased demand for users desires for enhanced user interfaces.” Solution: “Let’s investigate one of those highly desired interfaces, capacitive touch!” ‘Enabling The Smart Society’ © 2012 Renesas Electronics America Inc. All rights reserved.5 Market Trend Typical System Configurations Design Considerations Renesas Solution Agenda © 2012 Renesas Electronics America Inc. All rights reserved.6 Market Trend © 2012 Renesas Electronics America Inc. All rights reserved.7 Adoption of technology is happening Expansion of Capacitive Touch Key Interfaces 1990’s 2000’s 2010’s and beyond Applications High End Equipment Adopted by Consumer Electronics Proliferation across all segments © 2012 Renesas Electronics America Inc. All rights reserved.8 Audience: Why would you use a touch interface? Why Use Capacitive Touch Interfaces © 2012 Renesas Electronics America Inc. All rights reserved.9 Aesthetics Reliability Maintenance Interface Reuse Some Examples… © 2012 Renesas Electronics America Inc. All rights reserved.10 Typical System Configurations [...]... Capacitive- based Touch Key Detection All solutions based on same concept: measurement of change in capacitance Must maximize signal-to-noise ratio System-level design considerations, not just a sensor IC Noise Signal Noise 19 © 2012 Renesas Electronics America Inc All rights reserved Touch Design Considerations (Hardware) Electrical Mechanical Flat Overlay Electrode Shape and Size d Layout Touch. .. The Smart Society’ Challenge: “Embedded designs are increasingly being incorporated in new, innovated interfaces How can the engineer keep up with the increased demand for users desires for enhanced user interfaces. ” Solution: “Let’s investigate one of those highly desired interfaces, capacitive touch! ” Do you agree that we accomplished the above statement? 38 © 2012 Renesas Electronics America... Other: Material, thickness Touch Design Considerations (Firmware) Measurement • Scanning should not be interrupted • Need multiple charging/discharging and measurements for good accuracy Tuning and Debugging • Software tuning to maximize SNR • Real-time monitoring while touch detection • Source code (APP + Touch) for optimization Application-Level Touch Functions • Multi -touch, wheel/slider decoding,... Inc All rights reserved Benefits of Renesas Capacitive Touch Solution Hardware-Assisted Touch High Integration • . Inc. © 2012 Renesas Electronics America Inc. All rights reserved. Capacitive Touch Based User Interfaces and Hardware -based Solutions © 2012 Renesas Electronics America Inc. All rights reserved.2 Renesas. keep up with the increased demand for users desires for enhanced user interfaces. ” Solution: “Let’s investigate one of those highly desired interfaces, capacitive touch! ” ‘Enabling The Smart. rights reserved.15 Audience: Can you name some interfaces that would benefit from capacitive touch interfaces? Why? Why Use Capacitive Touch Interfaces © 2012 Renesas Electronics America Inc.