Slim proximity/colour sensor module for smart phones

Slim proximity/colour sensor module for smart phones

By eeNews Europe

The TMD3702VC three-in-one module comes in a 1.44mm x 2.84mm x 0.65mm package allows developers to implement designs with a thinner bezel, while retaining infrared proximity and light-sensing functions.

The module integrates an IR emitter, IR detector, four colour-sensing channels and optical filters. Sophisticated new optical packaging technology and design techniques have allowed the development high performance in a small thin module. The proximity sensor’s Vertical Cavity Surface Emitting Laser (VCSEL) Class 1 Eye Safe 940nm emitter is optically efficient, keeping the Active mode power consumption to very low levels. In Sleep mode, the device draws just 0.7µA.

A mould-compound package provides a ±48° field of view. The proximity engine features wide dynamic range, ambient light subtraction, and advanced optical crosstalk noise cancellation which dynamically eliminates both electrical and optical crosstalk producing reliable proximity detection.

The advanced optical sensor architecture of the TMD3702VC allows the accurate measurement of the Correlated Colour Temperature (CCT) of ambient light. The ambient light and colour sensing function includes four concurrent ambient light sensing channels – red, green, blue and clear – which all have a UV/IR blocking filter. Sensitivity, power consumption and noise are optimised with adjustable timing and power. The module accurately measures ambient light and enables the calculation of illuminance and colour temperature values.

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