Electronics & Computers

TAOS Announces New Light and Proximity Sensors

July 6, 2011

The new devices extend the dynamic operating range of mobile products, allowing them to adapt to all lighting conditions, and they improve proximity detection signal-to-noise ratio.

PLANO, TX /BUSINESS WIRE/ -- Texas Advanced Optoelectronic Solutions Inc. (TAOS), the "world's leading supplier of digital ambient light sensors to the smartphone, tablet and HDTV markets," announced its 5th generation sensor family, the TSL2x72 series, that delivers improved digital ambient light sensing (ALS) and proximity detection technology. The TSL2x72 series is especially designed to create the widest dynamic range of operation necessary for mobile products to adapt to all lighting conditions.

The TSL2x72 Series includes the following device families:
   TSL2572 – Digital Ambient Light Sensing Family
   TSL2672 – Proximity Detection Sensing Family
   TSL2772 – Integrated Digital Ambient Light and Proximity Detection Sensing Family

The TSL2x72 series enhances mobile products by providing ALS and proximity detection operation in environments over 60,000 lux (sunlight). The improved dynamic range is enabled by the device's new programmable gain modes, including a reduced gain mode. Proximity detection enhancements consist of increased signal-to-noise performance and a programmable register, which allows compensation for optical signal crosstalk. Power management is improved with an automatic power-down mode after interrupt, which provides a run-once capability and further reduces system power consumption.

The TSL2x72 Series is based on the patented TAOS dual-diode architecture, which enables the devices to produce accurate ALS and proximity detection results when operating behind spectrally distorting glass regardless of the lighting sources (e.g. sunlight or fluorescent) and intensity. These combined features enable optimum smartphone ALS and proximity detection implementations, which increase energy efficiency, extend battery life, and improve the end-user experience.

The TSL2x72 Series of devices are register set, footprint, and pin compatible with the widely adopted prior generation of TAOS devices, the TSL2x71 series. This compatibility enables existing TSL2x71 designs to rapidly migrate to the TSL2x72 while minimizing hardware and software design and development efforts. The TSL2x72 series of devices incorporate an IR LED current-limited driver, ADC, interrupt capability, multiple I2C interface voltage options (3.0 V or 1.8 V), and flexible programming, allowing it to be configured into many different applications.

"Mobile device vendors are continually striving to deliver more compelling products with an improved user experience; therefore, they demand ALS and proximity detection solutions capable of operating in a very wide range of lighting conditions," said Jerry Koontz, TAOS Inc. Director of Marketing. "The ALS and proximity detection technology enhancements provided by these new devices deliver both increased performance and system design flexibility. These new devices extend the TAOS leadership position in delivering technology supporting the global green movement by delivering products that reduce overall system power consumption and thus increase energy conservation."

The TSL2x72 series is ideally suited for mobile devices but also has applications in HDTVs, computers, and other consumer electronic products. Proximity detection is well suited for notebook and desktop computers to automatically turn off the display to conserve energy and maintain information privacy when a user is not present. Other emerging applications for proximity sensing technology include touchless display controls for netbooks, tablets, HDTVs, toys, office equipment, industrial controls, and many other products. In addition, the TSL2x72 series light-to-digital sensor family can be used in any general nondisplay application, where a high-sensitivity light sensor is required using an I2C interface.

To accelerate time to market and reduce design-in effort, TAOS provides evaluation modules and software support for device drivers and/or C-reference code (including support for Android and Chrome OS). Designed for the compact space requirements of mobile products, the devices are packaged in a cost-effective 2 by 2 mm Dual Flat No-Lead package. Samples are available now, with production quantities available in Q4 2011. Pricing for the TSL25721FN, TSL26721FN, and TSL27721FN is $0.67, $0.70, and $1.07, respectively, in quantities of 1000. For more information, please contact TAOS Inc.

About TAOS
With more than a decade of analog mixed-signal technology innovation and market leadership, Texas Advanced Optoelectronic Solutions Inc. (TAOS) designs and manufacturers digital and analog light-sensing solutions that deliver increased system integration, design flexibility, and functionality to a wide range of products in the consumer, computer, industrial, healthcare, life & fitness, solid-state lighting, and automotive markets. Integrated ambient light sensing and proximity detection solutions enable green displays by reducing system power consumption. An expanding portfolio of programmable analog and digital RGB color sensors provides accurate color discrimination, determination, and measurement. More information can be found on the company's Web site.

Trademarks Texas Advanced Optoelectronic Solutions is a registered trademark of Texas Advanced Optoelectronic Solutions Inc., of Plano, Texas.

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