Abstract: A differential signal receiver is provided. The differential signal receiver includes a first differential difference amplifier, a second differential difference amplifier, a latch and a first inverter. The first differential difference amplifier and the second differential difference amplifier compare a voltage value of an input signal with a first threshold value and a second threshold value, respectively, so as to output a first difference signal and a second difference signal, respectively. The second threshold value is an opposite value of the first threshold value. The latch has a set terminal for receiving the first difference signal and a reset terminal for receiving the second difference signal. The first inverter is configured to receive the first latch signal and output the first output signal. The first output signal has a duty cycle being the same as a duty cycle of the input signal.

Abstract: A down-conversion mixer includes a transconductance unit, a resonant unit and a mixing unit. The transconductance unit converts a differential input voltage signal pair into a differential input current signal pair. The resonant unit provides a negative resistance and a differential auxiliary current signal pair. The mixing unit mixes a combination of the differential input current signal pair and the differential auxiliary current signal pair with a differential oscillatory voltage signal pair to generate a differential mixed voltage signal pair.

Abstract: A down-conversion mixer includes a trans conductance unit, a resonant unit and a mixing unit. The transconductance unit converts a differential input voltage signal pair into a differential input current signal pair. The resonant unit provides a negative resistance and a differential auxiliary current signal pair. The mixing unit mixes a combination of the differential input current signal pair and the differential auxiliary current signal pair with a differential oscillatory voltage signal pair to generate a differential mixed voltage signal pair.