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Signal conditioners allow multiple photodiodes

Posted: 08 Dec 2011     Print Version  Bookmark and Share

Keywords:signal conditioning  photodiode  IR remote control 

Vishay Intertechnology Inc. reveals the VSOP383.. and VSOP584.. signal conditioning ICs that have the ability to process continuous data transmission for IR remote control signals from discrete photodiodes.

The company's standard IR remote control receivers include both the photodiode and signal conditioning IC in a single package. By separating the signal processing circuit from the photodiode and packaging it in a QFN package, the VSOP383.. and VSOP584.. offer far greater flexibility for many applications, according to Vishay. For example, they will be used in systems where ultra-wide spatial reception is required through multiple photodiodes aimed in different directions. They will also be used where unique photodiode packages are required or where alternative wavelengths need to be received, such as blue light in underwater applications or visible light communication.

VSOP383.., VSOP584..

The VSOP383.. and VSOP584.. offer supply current of 0.35mA and 0.85mA, respectively.

Manufactured using CMOS technology, the VSOP383.. and VSOP584.. feature narrow band-pass filter for 36kHz and 38kHz carrier frequencies and intelligent automatic gain control (AGC) to suppress disturbances from fluorescent lamps and other disturbing light sources. The company added that the devices are insensitive to supply voltage ripple and noise and are offered in small QFN packages measuring 2 x 2 x 0.76mm.

The devices offer a supply voltage range of 2.7-5.5V, and supply current of 0.35mA for the VSOP383.. and 0.85mA for the VSOP584... The RoHS-compliant ICs operate over a temperature range of -25°C to 85°C.





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