Duty cycle correcting circuits having a variable gain and methods of operating the same

摘要

Duty cycle correcting circuits having a gain adjusting circuit that selects one of a plurality of gains of the duty cycle correcting circuit based on a frequency of an input signal. An output circuit outputs a duty cycle corrected output signal based on the input signal and the selected one of the plurality of gains. The input signal may be an input clock signal and the output signal may be a corrected clock signal. Methods are also provided.