Photo Mod Clock

The M402 Photo Mod Clock is a module designed for digital systems to provide stable timing signals. It features an RC-coupled multivibrator that generates 100-ns pulses with an adjustable repetition rate ranging from 1 Hz to 500 kHz. Frequency control is achieved via an internal jumper for coarse adjustments and an internal light source for fine, continuous voltage-controlled adjustments (0V to 5V). The module includes a 2-input OR gate for start-stop control, supports specific output load capacities, and operates on a 5V power supply at up to 100 mA.