LC2200A block diagram of the main electrical parameters of the internal transmitter chip work LC2190 oscillation frequency 80kHz; input duty cycle of 1:1, f = 40kHz square wave pulse; output pulse train repetition rate between the CT side of the capacitors by the decision of the general for the 3 ~ 5Hz; operating voltage range of 2.5 ~ 3.5V, typically 3V; quiescent supply current of less than 1µA, the output can drive transistor and were *** higher rate of emission current. LC2200 receiver chip supply voltage range of 3 ~ 9v, typically 5V; quiescent supply current of less than 5µV; Each output drive current IoH = 2mA, 10L = 1mA, can directly drive NPN transistor, LED and low power silicon.

LC2190 form infrared transmitter circuit into a single-button continuous circuit

LC2200 constitutes your remote volume control circuit