3:1 Hybrid Sensor Combines IR LED Emitter with Proximity and Ambient Light Sensors

摘要

The new "3 in 1" SFH 7773 digital sensor from OSRAM Opto Semiconductors makes it easier than ever to install both proximity and ambient light sensing in smart phones and similar devices by combining the functions of a digital ambient light sensor and a digital proximity sensor in a single compact unit. It also simplifies the elimination of crosstalk by combining the emitter and detector chips together - 3 devices in all - eliminating the design requirements that are usually necessary to suppress crosstalk. Now, designers no longer have to install a separate IR emitter to enable the proximity sensor function.