question: jitter free inverter, short inverter chains

[020170]

inverter jitter

when I read some materials, I had question.

To have jitter free clock generator, some paper tells me that

" short inverter chains between clock source and destination"

but I don'w know what it is different to connect directly Vclock.

What does it mean?

is there anyone who explain me in detail?

thanks

 

[sankudey]

Hi ,
If your clock source (Vclk) is a square wave clock input then you can put 2/4 nos. of inverter in chain to distribute the clock to different destination while serving the purpose of driving. The feature is that when inverters are in chain config. they pursue very less jitter.

If your Vclk is a sinusoid, in the first inverter you place a hyst. inveter (schmitt trigger). It will give you required clock.....


sankudey

 

[020170]

Could you attach some material dealt with what you mention it?

I don't understand what you mean.

anyway, thanks