Harness, Dickey & Pierce, P.L.C.
Duty correcting circuit, delay-locked loop circuit and method of correcting duty
The duty correcting circuit includes a duty cycle corrector, a duty detector and a duty correction code generator. The duty cycle corrector corrects a duty cycle of an input clock signal to generate an output clock signal. The duty detector adjusts a delay time of the output clock signal to generate a sampling clock signal, samples the output clock signal in response to the sampling clock signal to generate sample data, and detects a duty of the output clock signal based on logic states of the sample data. Therefore, the duty correcting circuit precisely detects and corrects a duty of the output clock signal.
Samsung Electronics Co., Ltd.
H
H03K
inventional
Jun-Bae Tae-Sik
Kim Na