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Proximity Sensor IC features 16-bit effective resolution.

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December 10, 2012 - Housed in 4.85 x 2.35 x 0.83 mm SMT package, Model VCNL3020 combines IR emitter, photo-pin-diode, signal processing IC, and 16-bit ADC. Unit supports IC bus communication and features interrupt function. Sensor's programmable LED drive current from 10–200 mA allows distances up to 200 mm, and to more than 1 m when integrated emitter driver is used to drive external emitters. With standby current consumption of 1.5 A, device offers 2.5–3.6 V supply voltage and IC bus voltage from 1.7–5 V.

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Original Press Release

Vishay
63 Lincoln Hwy., P.O. Box 4004
Malvern, PA, 19355
USA



Vishay Intertechnology Releases Fully Integrated Proximity Sensor Combining IR Emitter, Photo-Pin-Diode, Signal Processing IC, and 16-Bit ADC in Compact 4.85 mm x 2.35 mm x 0.83 mm Package


MALVERN, Pa. — Vishay Intertechnology, Inc. (NYSE: VSH) today added to its optoelectronics portfolio by introducing a fully integrated proximity sensor that combines an IR emitter, photo-pin-diode, signal processing IC, and 16-bit ADC in one small 4.85 mm x 2.35 mm x 0.83 mm surface-mount package. The space-saving VCNL3020 supports an easy-to-use IC bus communication interface, and it features an interrupt function and an integrated external emitter driver to extend the sensor's range.

The VCNL3020's 16-bit effective resolution for proximity detection ensures excellent cross talk immunity, eliminating the need for a mechanical barrier between the emitter and detector. While other products only achieve object detection up to 100 mm, the sensor's programmable LED drive current from 10 mA to 200 mA (in 10 mA steps) allows distances up to 200 mm, and to more than a meter when the integrated emitter driver is used to drive external emitters. The VCNL3020 offers excellent ambient light immunity by modulating the emitter signal.

The device's interrupt function enables the sensor to work independently until a programmable threshold value occurs, and then it wakes up the microcontroller. This helps customers reduce their software effort and lower power consumption by eliminating polling communication traffic between the sensor and microcontroller.

For mobile devices such as smartphones, touch phones, PDAs, GPS units, and digital cameras, the VCNL3020 saves power as a proximity sensor for touch screen locking. The device serves as an optical switch for computing and industrial devices and displays.

Featuring low standby current consumption of 1.5 A, the device offers a supply voltage range of 2.5 V to 3.6 V and IC bus voltage range from 1.7 V to 5 V. Customers can estimate the current consumption of the sensor in their application at http://www.vishay.com//optoelectronics/opto-sensors-calculator/. The sensor operates over a temperature range of - 25 C to + 85 C. The VCNL3020 is RoHS-compliant.

Samples of the new sensor are available now. Production quantities will be available in March 2013, with a lead time of eight weeks for large orders. Pricing for U.S. delivery only starts at $0.95 per piece in 1,800-piece (1 reel) quantities. Follow optical sensors from Vishay at http://twitter.com/vishayindust.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.
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