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Si114x QuickSense™ Infrared Proximity Sensors
Silicon Labs Si114x QuickSense
™
infrared proximity sensors
are the industry's most sensitive and lowest power active
infrared proximity sensors
.
Silicon Labs Si114x infrared proximity sensors
feature an all-digital I²C control interface and up to three infrared LED drivers in an impressively small 2mm x 2mm clear QFN package. These
Silicon Labs
sensors
are capable of controlling 1-, 2-, and 3-infrared LED systems, giving developers the freedom to implement one-dimensional systems with a range of up to 50cm or multi-dimensional systems capable of advanced motion sensing with a range of up to 15cm.
Silicon Labs Si114x infrared proximity sensors
extend battery life by reducing the Ir-LED on-time to only 25.6 µs. These
QuickSense
devices also feature an integrated ambient light photodiode that enables accurate light level monitoring in mixed-light source settings.
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Benefits
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Industry leading infrared proximity sensing range of 50 cm
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Extends battery life by reducing the Ir-LED on-time to only 25.6 μs
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Enables 1, 2, and 3-dimensional sensing systems
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Enables innovative new end-product features like the touchless slider
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Dynamic adjustment of LED currents minimizes power consumption
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Enables accurate light level monitoring in mixed-light source settings
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Improved user visual experience and reduced backlight energy usage
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Autonomous operation allows system wake-on-approach
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Flexible access to sensing configuration
Features
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High sensitivity infrared photodiode
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1-, 2-, or 3- independently controlled infrared LED drivers
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Integrated ambient light photodiode
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I²C control interface with interrupt
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2x2mm QFN-10 package
Applications
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Handsets
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E-Readers
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Netbooks
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Web tablets
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Portable consumer electronics
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Office equipment
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Toys
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Industrial equipment
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Security equipment
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Smoke detectors
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Point of sale stations
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Product Specifications
Part Number
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Infrared Range
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LED Drivers
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Si1141
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>50 cm
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1
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Si1142
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Up to 15 cm for gestures
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2
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Si1143
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Up to 15 cm for gestures
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3
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Block Diagram
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Si114x Video: 3 LED Proximity and Ambient Light Sensor Solutions
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Silicon Labs QuickSense™ Si1140DK Development Kit
The
Silicon Labs Si1140DK Development Kit
is an advanced development platform for the
Si114x infrared proximity
and
ambient light sensor
. The hardware is controlled by the advanced ultra-low power C8051F800 MCU. The MCU controls a three Ir-LED configuration in combination with the
Si1143
sensor. The three Ir-LED configuration allows for advanced 3-axis touchless object proximity and motion sensing. Development of advanced motion and gesture sensing is assisted with the QuickSense Studio development environment. Within the Studio environment is a powerful performance analysis tool that enables real-time reflectivity monitoring.
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Silicon Labs IrSlider2EK Touchless Slider Evaluation Kit
The
IrSlider2EK QuickSense Si114x Touchless Slider Evaluation Kit
is a
Silicon Labs
infrared touchless slider kit
that boasts excellent range, visible LED tracking, and both swipe and set gesture recognition. The USB powered demonstration is controlled by an ultra-low power
Silicon Labs
C8051F800 MCU and incorporates an Si1142, two infrared LEDs, and eight visible LEDs. The QuickSense Studio development environment supports this unique demonstration board with a powerful performance analysis tool that enables real-time reflectivity monitoring.
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Silicon Labs IRMFB Evaluation Kit
Silicon Labs IRMFB Evaluation Kit
demonstrates the flexibility and configurability of the
Si114x
product family, the industry's lowest power, longest range, multi-
LED
optical sensors. The top side of the
IRMFB Evaluation Kit
features an
Si1143
three irLED "thumbscroll" implementation which allows a user to swipe over the sense array and navigate a 3 mm x 3 mm array of blue
LED
's. A tap to select gesture is also supported on this thumbscroll demo which blinks the selected
LED
. The back of the
Silicon Labs
IRMFB Evaluation Kit
features a
Si1141
single
irLED
range detection demo capable of sensing distances up to 30 cm for a hand and up to a meter for a torso. The blue
LED
array on the long range demo progressively lights up as a detectable object moves closer to the sensor. Applications include E-book readers, notebooks/netbooks, consumer electronics, and smoke detectors.
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