Patent ID: 9318999
Filing Date: 2016-04-19
CPC Classification: G11C,H03D,H03H,H04B,H04L

Claim Text:
1. A sampling mixer circuit comprising: a clock generating circuit that outputs four-phase control signals with four different phases having a cycle corresponding to a carrier frequency of an input signal; a voltage-to-current conversion circuit that converts a voltage signal, which is based on the input signal, to a current signal; four-system charge sharing circuits, each of which inputs the converted current signal to a plurality of capacitors according to different phases based on the four-phase control signals and which exchanges charge among the plurality of capacitors; and an inter-phase capacitor that is selectively coupled to four nodes of the four-system charge sharing circuits based on the four-phase control signals, wherein the four nodes are not input nodes that receive the converted current signal.