Are TL494 and TL494CN suitable of audio modulation?

[boylesg]

TL494 and TL494CN pulse width modulator?

I extracted them from a couple of PC power supplies.

Are they suitable for audio frequencies?

 

[DeepOne]

In my observation in smd version they can work on 500kHz carrier but built-in amplifiers is noticeably hiss.

 

[boylesg]

In my observation in smd version they can work on 500kHz carrier but built-in amplifiers is noticeably hiss.

It is for the purpose of singing tesla coil / HV arc.

So I am not all that concerned with high fidelity and all that.

Just needed to know if they could run at high enough frequency.

Would you happen to know of a site that explains how to use and connect the these ICs?

 

[DeepOne]

"Just needed to know if they could run at high enough frequency."
This depends not only from TL494 microcircuits but in not smaller degree from all design.
For this case "dead-bug" )) circuit style looks good, as showing by Mtwieg in https://www.edaboard.com/threads/276232/ (#10)

Would you happen to know of a site that explains

Regrettably no, as i see scintillas of information is strewn on Net (not to count towards datasheet). But you may do searching personally.

 

[boylesg]

Re: TL494 and TL494CN pulse width modulator?

I found this document on usage of TL494 if anyone asks the same question down the track.

https://www.ti.com/lit/an/slva001e/slva001e.pdf