LC219/220 internal circuitry and pin function circuit diagram

Published:2011/9/27 22:21:00 Author:Rebekka | Keyword: internal circuitry , pin function | From:SeekIC

LC219 is a multi-purpose remote coding circuit, not only for the infrared remote control, but also for ultrasonic and radio remote control circuit, and itcan be used to double the wired remote control circuit,it isshown in figure (a). When it is used in radio-controlled, because radio remote control circuit board is specially equipped with the frequency of the oscillator circuit, then the foot can connect ⑩ ground, so that the internal carrier frequency oscillator circuit to stop working. LC220 is the supporting decoder circuit of LC219. It includes the internal buffer circuit, decoder, output circuit and timer, and itisshown in figure (b).



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/LC219_220_internal_circuitry_and_pin_function_circuit_diagram.html

Print this Page | Comments | Reading(3)