Vishay's integrated IR emitter and sensor ADC

A few days ago, Vishay Intertechnology, Inc. (NYSE ticker symbol: VSH) announced the launch infrared emitter photodiode, signal processing IC and 16-bit ADC integrated into small size 4.85mmx2 The .35 mmx0.83mm surface mount package fully integrated proximity sensor --- VCNL3020, expand its optical electronic portfolio. Space-saving VCNL3020 support easy-to-use I2C bus communication interrupt function, the the integrated transmitter driver can expand the sensor's detection distance.

16 bit effective resolution of VCNL3020 device during proximity detection can well resist crosstalk, a mechanical grating does not need to be added between the emitter and detector. Only detect objects within 100mm performance compared with other products, Vishay this sensor uses 10mA ~ 200mA (10mA increments) programmable LED drive current, the detection range is extended to 200mm. Using integrated transmitter driver to drive an external transmitter, the detection range or even more than one meters. Meanwhile, VCNL3020 modulated on the transmission signal, having excellent resistance to ambient light.

The device interrupt function of the sensor to be able to work independently, until the occurrence of a programmable threshold event, and then wake up the microcontroller. This helps consumers to reduce their consumption of software to reduce power consumption by reducing the polling traffic between the sensor and the microcontroller.

VCNL3020 can be used as a touch screen panel lock proximity sensor for smart phones , touch screen phones , PDAs, GPS units and digital cameras and other mobile devices, to achieve the purpose of saving power. The device can also be used as computing, industrial equipment and display optical switch.

Device standby current is only 1.5μA, the power supply voltage of 2.5V to 3.6V I2C bus voltage of 1.7V to 5V. Sensor Operating temperature -25 ℃ ~ +85 ℃. VCNL3020 comply with RoHS, samples will be provided with November 2012, mass production in March 2013, supply period of eight weeks for larger orders.

VISHAY Profile
Vishay Intertechnology, Inc. Fortune 1,000 companies listed on the NYSE (VSH), is the world's largest manufacturers of discrete semiconductors (diodes, MOSFET and infrared optoelectronic devices) and passive electronic components (resistors, inductors, capacitors) one of the largest manufacturers. These components can be used in the industrial, computing, automotive , consumer, telecommunications, military, aerospace, power supply, and medical markets in almost all types of electronic devices and equipment. Its product innovations, successful acquisition strategy, and "one-stop shop" service have made Vishay a global industry leader.