LOW POWER ASYNCHRONOUS TYPE PHASE SHIFT DEMODULATION CIRCUIT FOR LIVING DONOR TRANSPLANTATION USING A COMPLEMENTARY SIGNAL OF TWO PAIRS OF COMPARATORS IN A DOUBLE SIDE BAND INCREASING YIELD BY SEPARATING A COMPLEMENTARY SIGNAL OF A DOUBLE SIDE BAND AND BY REMOVING GLITCH

摘要

PURPOSE: A low power asynchronous type phase shift demodulation circuit for living donor transplantation using a complementary signal of two pairs of comparators in a double side band is provided to transmit broadband data and to be used in digital communication of a living donor device requiring lower power consumption.;CONSTITUTION: A filter(110) separates an upper side band signal and a lower side band signal from a differential signal and compares the separated upper side band signal and lower side band signal. The filter outputs a non-inverse digital signal and an inverse phase digital signal in the upper side band signal. The filter outputs a non-inverse digital signal and an inverse phase digital signal in the lower side band signal. A detection unit(120) detects phase variation of the differential signal by delaying the non-inverse phase digital signal and inverse phase digital signal of the upper side band signal. A clock generation unit(130) generates a data detection clock by generating a symbol edge signal by filtering a pulse signal.;COPYRIGHT KIPO 2013