IC INPUT NOISE REJECTING CIRCUIT

摘要

The circuit eliminates the noise signal which comes in through the input pin of the integrated device. The circuit has the level attenuation circuit (2) between the input pin (1) and the conventional internal logic circuit (3) to reduce the level of the input signal. The circuit does not only adjust the level of the input noise signal, but also absorbs the noise signal with the impulse element and prevents the integrated device from misoperating by the noise signal.