SOURCE: Vishay Intertechnology, Inc.

Vishay Intertechnology, Inc.

May 19, 2011 11:00 ET

Vishay Intertechnology Introduces New Demo Kit for VCNL4000 Fully Integrated Proximity and Ambient Light Optical Sensor

Featuring Two Interface Panels and Adjustable Performance Parameters, Kit Allows Designers to Easily and Inexpensively Evaluate VCNL4000 for Their Applications

MALVERN, PA--(Marketwire - May 19, 2011) - Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new demo kit for its VCNL4000 fully integrated proximity and ambient light optical sensor. Featuring a VCNL4000 sensor mounted on a PCB with a USB interface and demonstration software, the kit allows designers to easily and inexpensively evaluate the device for their applications.

As a fully integrated sensor, the VCNL4000 combines an IR emitter, proximity photodiode, ambient light detector, signal processing IC, and an I2C bus communication interface in one small 3.95 mm x 3.95 mm x 0.75 mm leadless (LLP), surface-mount package.

The VCNL4000 Demo Kit software includes two interface panels: one for the ambient light function and the other for the proximity function. Designers can adjust key performance parameters of the sensor to see the effect on their applications. In addition, they can easily test different housing or window materials to determine the change in sensitivity or output of the sensor.

The Proximity Function software allows users to adjust the emitter current, sampling rate, sampling mode, and output unit of measure. It includes automatic noise and offset compensation, and offers two displays showing the full dynamic range and active dynamic range of the sensor output.

The Ambient Light Function software features an adjustable sampling rate and sampling mode, automatic adjustment for temperature-related drift and, like the Proximity Function, two displays showing the full dynamic range and active dynamic range of the sensor output. The output is displayed in counts and lux.

For mobile devices such as smartphones, touch phones, PDAs, GPS units, and digital cameras -- in addition to computing and industrial devices and displays -- the new VCNL4000 saves power as a proximity sensor for touch screen on/off control. In addition, the sensor serves as an integrated ambient light function for display/keypad contrast control and dimming.

For designers, the VCNL4000 contains all the circuitry needed for these applications in one device, eliminating the need for light barriers and optical alignment of the IR emitter and photo diode and greatly simplifying the design and development process.

The kit is available for purchase from any of Vishay's catalog distributors.

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

Link to datasheet: (VCNL4000)

Link to product photo: