METHOD FOR MULTIPLYING CLOCK SIGNAL USING PHASE INTERPOLATION AND APPARATUS THEREOF, ESPECIALLY WHERE OUTPUT OF FIRST EXCLUSIVE OR GATE IS COMPLEMENTARY SIGNAL TO SECOND EXCLUSIVE OR GATE

摘要

PURPOSE: A method for multiplying a clock signal using phase interpolation and an apparatus thereof are provided to enable to generate a clock signal having a phase difference of 90 degree more easily. CONSTITUTION: According to the apparatus for increasing a clock signal, a phase interpolator(502) comprises a pair of outputs including the first output and the second output, and a pair of inputs including the first input and the second input. A differential to single ended converter(504) comprises two inputs and outputs, and is connected to the phase interpolator. The first exclusive OR gate(506) comprises a pair of input and output including the first input and the second input. And the second exclusive OR gate(508) comprises a pair of inputs and outputs including the first input and the second input.