Infrared remote control transmitter circuit
Source: InternetPublisher:司马缸砸光 Keywords: Infrared remote control transmitter transmitter circuit oscillation Updated: 2021/07/18
Shown is an infrared remote control transmitter circuit based on the remote control chip SC9012 , powered by a 3V battery. Pins ⑧ and ⑧ are connected to an external
resonant crystal (or ceramic resonator) to generate an oscillation signal . The @ pin outputs a control signal , which is amplified to drive the infrared light-emitting diode.
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