IR TRANSMITTER

[shiva garg1]

Hello everybody i am working on IR transmitter based on 555 timer and i am succesful in making it but i want to use some other timer because  frequency response of 555 timer is not stable. So can any one suggest me some other timer
Thanks in advance

 

[audioguru2]

Hi Shiva,
The frequency stability of a 555 is pretty good when it has a supply bypass capacitor located close to it. Its stability is probably much better than the bandwidth of your receiver.
An extremely stable crystal oscillator can be made with a CD4060 oscillator/divider IC. ;D