The company’s next generation of proximity sensing and proximity/ambient light sensing modules promise to reduce the sensor aperture in a smartphone display cover glass. The TMD2620 proximity sensor or the TMD2725 proximity and ambient light sensor combo allow phone manufacturers to reduce the aperture’s size by as much as 50%. Respectively, the TMD2620 and TMD2725 enable aperture sizes as small as 1.4 mm and 2 mm. They also feature unique packaging that allows the infrared LED emitter and photodiode to be placed 1 mm apart. Lenses on top of the emitter and sensor along with an optical barrier between them minimize crosstalk caused by reflections from the surfaces of the cover glass. Offset adjustment registers eliminate the effect of any residual crosstalk from the module’s proximity calculations. Automatic ambient light subtraction further enhances the accuracy of the device’s proximity measurements. Additionally, the modules have a measurement range up to 100 mm, said to be comparable to laser-based topologies. Available now, pricing is $0.36 each/1,000 for the TMD2620 and $0.43 each/1,000 for the TMD2725. For more information, go to:
ams USA Inc.