Tx for 38KHz IR detector

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rx5

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Anyone got idea/schematic HOW to make an IR Tx?? I wish to use it with the 38-40KHz IR demodulator (3 pins).....

should I make an clock source (38-40KHz) and "AND" it with a -signal- to be sent? is it the way to send it to the IR demod ??
 

if you are using digital signals, then one ic555 as working in astable mode can be used as tx. and its pin 4 can be used to modulate the output signal.
 

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