Television link infrared modulation circuit

摘要

A television (TV) link infrared (IR) demodulation circuit including: a reference voltage setting unit setting a first reference voltage and a second reference voltage, different from each other; and a differential amplifier differentially amplifying the first reference voltage received via a first input terminal and a voltage obtained by coupling an input signal with the second reference voltage, via a second input terminal and demodulating a remote control signal received via the second input terminal into a pulse signal.