Patent ID: 9053774
Filing Date: 2015-06-09
Classification: G11C,H03K

Abstract:
1. A duty cycle corrector, comprising: a sensing unit configured to sense a duty cycle ratio of an output signal toggling periodically to generate at least one sensing signal based on the sensed duty cycle ratio; a pad unit configured to output at least one decision signal based on the at least one sensing signal; a fuse unit that includes a plurality of fuse elements which are selectively programmed in response to a fuse control signal, the fuse unit configured to generate the duty control signal based on the fuse control signal to generate the duty cycle control signal; and a driver unit that buffers an input signal toggling periodically in a test mode and adjusts a duty cycle ratio of the input signal, the driver unit configured to adjust a pull-up strength or a pull-down strength of the input signal to generate the output signal in response to the duty control signal.