Silicon Labs QuickSense™ Human Interface Solutions

The Silicon Labs QuickSense™ family of products offers a unique grouping of the industry’s fastest capacitive and optical sensing solutions to enable sophisticated user interfaces in electronics products, all supported with the innovative and easy to use QuickSense Studio development platform.

Download Silicon Labs' Human Interface Solution Guide

The QuickSense portfolio features touch and touchless user interface solutions, including the innovative touchless slider which can detect complex gestures. Developers will find reliable and responsive UI products including:

• Capacitive buttons
• Capacitive sliders and wheels
• Capacitive proximity sensing
• Infrared proximity sensing
• Ambient light sensing
  

• C8051F7xx MCU family
• C8051F8xx MCU family
• Si1102 infrared proximity sensor
• Si1120 infrared proximity and ambient light sensor

Optimized for power efficiency, the QuickSense Si1102 proximity and Si1120 proximity and ambient light sensors enable touchless human interface sensing with superior detection range. These sensors are ideal for applications that can benefit from system power savings, tamper detection/proofing, motion sensing and gesture interpretation. When paired with the C8051F700 and C8051F800 touch sense microcontrollers (MCUs), the QuickSense family of products enables smart motion sensing, giving designers a complete array of human interface technologies to improve the end-user experience.

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Silicon Labs QuickSense™ Studio

The Silicon Labs QuickSense Studio software facilitates rapid product development and analysis for developers of user interface products. The easy to use graphical environment is comprised of multiple applications that guide developers through an intuitive development flow, including graphical configuration wizards, firmware templates and performance monitoring tools. These programs interface with the QuickSense Firmware API, a robust and highly configurable firmware library that provides support for many different applications, from simple buttons to complex algorithms like gesture recognition.

QuickSense Studio

QuickSense Studio Users Guide

The QuickSense Studio Configuration Wizard makes adding human interface technologies to end products simple, allowing engineers to set up capacitive buttons, sliders and wheels in an intuitive software GUI without typing a single line of code. The studio also enables the configuration of infrared proximity and ambient light sensors through a library of APIs.

• C8051F70x-71x MCU family
• C8051F80x-83x MCU family
• Si1102 infrared proximity sensor
• Si1120 infrared proximity and ambient light sensor

Silicon Labs QuickSense Infrared Sensing

Optimized for power efficiency, the Silicon Labs QuickSense Si1102 proximity and Silicon Labs QuickSense Si1120 proximity/ambient light sensors enable touchless human interface sensing with superior detection range. These QuickSense sensors are ideal for applications that can benefit from system power savings, tamper detection/proofing, motion sensing and gesture interpretation.

• High-performance single-pulse infrared proximity detector with a sensing range of up to 50 cm
• Threshold reflectance principle overcomes ambiguity associated with motion-based systems
• Adjustable detection threshold and strobe frequency
• Proximity (PRX) status latched between consecutive strobes
• High EMI immunity without shielded packaging
• 2 to 5.5 V power supply
• Operating temperature range: –40 to +85 °C
• Typical 10 μA current consumption
• Current driven (400 mA) or saturated LED driver output
• Cancels dc ambient of at least 100 klux (direct sunlight)

• PWM output
• Ambient light sensor
• Seven precision optical measurement modes:
• 3 proximity ranges
• 3 dc ambient light sensing ranges
• 1 calibration mode
  
• Low-noise ambient cancelling circuit allows maximum sensitivity with 8–12 bit resolution
• Works in direct sunlight (100 klux)
• Minimum reflectance sensitivity <1 μW/cm2
• High EMI immunity without shielded packaging
• Power supply: 2.2–3.7 V
• Operating temperature range: –40 to +85 °C
• Typical 10 μA current consumption
• Programmable 400/50 mA LED constant current driver output
• Allows independent LED supply voltage

Silicon Labs QuickSense Capacitive Sensing

The Silicon Labs QuickSense C8051F800 family builds upon the Silicon Labs QuickSense C8051F700 family of capacitive touch MCUs by adding a lower pin count, small form factor option to the industry’s fastest capacitive touch sense solutions. The Silicon Labs QuickSense F800 family enables developers to add sophisticated touch sense interfaces to a wide range of consumer and industrial electronic products, such as set-top boxes, residential light controls, thermostat controls, home security panels, commercial point-of-sale (POS) interfaces, portable electronic devices and small appliances.

• High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
• In-system, full-speed, non-intrusive debug interface (on-chip)
• 10-bit 500 ksps Single-ended ADC
• Precision calibrated 24.5 MHz internal oscillator
• 16 kB of on-chip Flash memory
• 512 bytes of on-chip RAM
• Implemented SMBus/I2C, UART, and SPI serial interfaces
• Four general-purpose 16-bit timers
• Capacitive Sense interface with 32 input channels
• Programmable Counter/Timer Array (PCA)
• On-chip internal voltage reference
• On-chip Watchdog timer
• On-chip Power-On Reset and Supply Monitor
• On-chip Voltage Comparator
• 54 general purpose I/O

• High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
• In-system, full-speed, non-intrusive debug interface (on-chip)
• 10-bit 500 ksps single-ended ADC
• Precision calibrated 24.5 MHz internal oscillator
• 16 kB of on-chip Flash memory
• 512 bytes of on-chip RAM
• Implemented SMBus/I2C, UART, and SPI serial interfaces
• Three general-purpose 16-bit timers
• 16-input capacitance to digital converter
• Programmable Counter/Timer Array (PCA)
• On-chip internal voltage reference
• On-chip watchdog timer
• On-chip power-on reset and supply monitor
• On-chip voltage comparator
• 17 general purpose I/O

Silicon Labs QuickSense Development Tools

Silicon Labs QuickSense development kits contain everything needed to develop applications with the C8051F700 and C8051F800 MCUs. These Silicon Labs development kits include advanced debug features that enable the user to fully develop and integrate hardware and software design. QuickSense evaluation kits allow designers to demonstrate and assess the proximity sensing and capacitive touch properties of QuickSense sensors and MCUs.

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