Circuit for detecting phase error of color burst signal

摘要

In a phase error detector for detecting a phase error theta of an input color burst signal from a phase of a reference signal from sin theta component and cos theta component, if either one of the sin theta component and cos theta component requires M bits for its expression, the both values are divided by a same value to shift in bits to be expressed in N bits (N<M), thereby preventing the subsequent circuit from increasing in scale.