DLL circuit
a delay lock and circuit technology, applied in the direction of digital storage, generating/distributing signals, instruments, etc., can solve the problems of reducing current consumption, reducing power consumption, and difficulty in generating timing other than one cycle or half cycle unit of reference clock signals, so as to reduce power consumption
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[0044]Preferred embodiments of the invention will be explained in conjunction with the accompanying drawings.
[0045]FIG. 7 is a diagram illustrating a DLL circuit according to a first preferred embodiment of the invention.
[0046]With reference to FIG. 7, the DLL circuit 100 according to this preferred embodiment comprises: phase shifting means 120 which, based on an input signal 300, generates, for example, 8 phase shifting processing signals 310 having phase differences at equal spacings (45 degrees); phase comparison means 140 which compares the phase of the input signal 300 with the phase of an output feedback signal 330 to detect a phase difference and, based on the detected phase difference, outputs a phase control signal 340; phase synthesizing means 160 which outputs a phase corrected signal 320 having a predetermined phase relationship with the input signals 300 based on the 8 phase shifting processing signals 310, generated by the phase shifting means 120, and the phase contr...
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