| 摘要 |
<p>PURPOSE:To provide the clock error detection circuit detecting a frequency fault, duty fault or a fault of an input level with respect to the clock error detection circuit used for a transmitter or the like. CONSTITUTION:The circuit is provided with an edge detection section 100 receiving one of branched clock signal signals, detecting a leading edge of a clock pulse and outputting a prescribed signal, a window pulse generating section 200 receiving the other clock signal branched and outputting a prescribed signal at a point of time when the leading part of the clock pulse to be in existence and a frequency error discrimination section 400 discriminating the presence of an error in the clock frequency from an output of the edge detection section 100 and an output of the window pulse generating section 200.</p> |
