Supplied in 4 x 5 mm, 24-lead TQFN package, ISL29501 time-of-flight (ToF) signal processing IC provides complete object detection and distance measurement solution when combined with external emitter (IR LED or laser) and photodiode. On-chip DSP calculates ToF for proximity detection and distance measurement up to 2 m in both dark and bright ambient light conditions. Other features include on-chip emitter DAC; single shot and continuous operational modes; and 4.5 MHz modulation frequency.