Tx for 38KHz IR detector

[rx5]

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 ??

 

[nikhilele]

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.