摘要:
A rail-to-rail comparator including a first comparison unit connected to a first terminal and configured to compare differential input signals to differential reference voltages; a second comparison unit connected to a second terminal and configured to compare the differential input signals to the differential reference voltages; and an output unit configured to be driven in response to a clock signal and to generate a complementary output signal according to comparison results of the first and second comparison units.
摘要:
A phase detection circuit is configured to generate a phase detection signal by comparing a divided clock signal obtained by dividing a first clock signal to a second clock signal during a deactivation period of a control signal, and generate the phase detection signal by comparing the first and second clock signals during an activation period of the control signal.
摘要:
A semiconductor device includes a delay unit configured to delay an inputted clock to generate a delay clock, a selection unit configured to select and output one of the inputted clock and the delay clock, a delay locked loop configured to perform a delay locking operation using a signal delivered from the selection unit, and a selection control unit configured to control the selection unit in response to a comparison of one period of the inputted clock and a maximum delay value of the delay locked loop.