How pure does the sine wave need to be?hi everbody
i need sinewave output oscillator which operates 20 mhz or more.
crystal oscillator will be preffered
please help i have many oscillator design but i need very stable.
thank you
to generate a stable 20 mHz square wave, then pass the signal through a bandpass filter to clean it up into a sine.
You haven't given any real specifications or details for how you will use it, or size or anything. What about cost?thank you for yor solution
but any other ideas quick and clear.
when i searh to internet i found max038 IC but it is not being manufactured anymore. do you know any equivalent ?
thank you
Looking at the MAX038 specifications and the ones you just gave, the stability and purity specifications do not seem that stringent. An LC based oscillator may meet those specs if you design carefully. Certainly, a fixed frequency crystal oscillator generating a square wave followed by a buffered LC bandpass filter stage will be able to meet those specifications.temperture is up to max 65C and it would be pure sine wave as i can as. frequency and amplitude accuarcy should be 1% at whole performance.
i implement some colpitts oscillator but it is not usefull actually i need really good one thats why i m asking IC type generator
thanks for your attention. please keep answer me, i really stuck to implement oscillator
by Don Wilcher
by Duane Benson
by Jake Hertz
by Jake Hertz