GLITCH FILTER CIRCUIT FOR REMOVING CLOCK NOISE

摘要

PURPOSE: A glitch filter circuit for removing the clock noise is provided to remove the clock noise so as to prevent the malfunction of a system. CONSTITUTION: The glitch filter circuit comprises a delay(210) delaying a specific time by receiving a first pulse signal and a latch(220) latching the previous state from the point that the first signal transits from the low state to the high state or from the high state to the low state by receiving the first and delayed first signal until the delayed pulse signal is transmitted, and generating a second pulse signal from the noise removed first pulse signal. The delay comprises a plurality of inverters in a serially connected structure and the capacitors respectively connected between an output and earth terminal, and the first invert receives the first pulse signal.