Apparatus and method of generating reference clock for DLL...

Details Apparatus and method of generating reference clock for DLL... Apparatus and method of generating reference clock for DLL...

2011-03-08

2011-03-08

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S292000, C327S298000

Reexamination Certificate

active

07902899

ABSTRACT:
An apparatus for generating a reference clock for a DLL circuit includes a buffering unit configured to buffer an external clock so as to generate a first reference clock and a second reference clock, and to invert the second reference clock so as to generate a negative second reference clock. A duty cycle compensating unit generates a reference clock from the first reference clock and the negative second reference clock.

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