摘要:
A delay value control circuit of a phase difference quantization circuit, wherein the phase difference quantization circuit has first to Nth (N is an integer equal to or greater than 2) delay units with binary weights. The delay value control circuit includes a replica delay unit replicating an Ath (2≦A≦N) delay unit; and a delay control unit configured to compare a phase of a first output signal generated from delaying an input signal with an A−1th delay unit and a phase of a second output signal generated from delaying the input signal with the Ath delay unit and the replica delay unit and configured to control a delay value of the Ath delay unit using a comparison result.
摘要:
A delay value control circuit of a phase difference quantization circuit, wherein the phase difference quantization circuit has first to Nth (N is an integer equal to or greater than 2) delay units with binary weights. The delay value control circuit includes a replica delay unit replicating an Ath (2≦A≦N) delay unit; and a delay control unit configured to compare a phase of a first output signal generated from delaying an input signal with an A−1th delay unit and a phase of a second output signal generated from delaying the input signal with the Ath delay unit and the replica delay unit and configured to control a delay value of the Ath delay unit using a comparison result.
摘要:
A duty correction circuit includes a duty ratio control unit suitable for generating an output clock by adjusting the duty ratio of an input clock, a code generation unit suitable for detecting a duty of the output clock and generating a first duty ratio control code based on the detection result, and a code filter unit suitable for providing the duty ratio control unit with a second duty ratio control code corresponding to a target value when a value of the first duty ratio control code is within a predetermined critical range adjacent to the target value.