FREQUENCY MIXING CIRCUIT IMPROVED DC OFFSET CHARACTERISTIC BY USING HIGH BANDWIDTH PASSING CHARACTERISTIC

摘要

PURPOSE: A frequency mixing circuit improved DC offset characteristic by using high bandwidth passing characteristic is provided to obtain proper DC offset characteristic regardless of effecting from an input signal voltage value, and minimize the power consumption due to a simple structure. CONSTITUTION: A voltage-current conversion section(20) amplifies an input voltage signal of a differential type provided from an input signal and a reference providing section(10), and converts the input voltage signal into a differential output current. A frequency mixing section(30) mixes the converted current provided from the voltage-current conversion section(20) with an applied clock signal from an outside. An output signal generation section(40) generates an output voltage signal through an output load resistor after receiving the converted current from frequency mixing section(30).