Reply To: Strengths and shortcomings of a FIFO and Phase noise measurements

Forum Digital line Strengths and shortcomings of a FIFO and Phase noise measurements Reply To: Strengths and shortcomings of a FIFO and Phase noise measurements

#1737
gentlevoice
Participant

Hi all …

& thanks Andrea for your reply. However, in relation to the PN measurement and your comment:

Finally, we well know that PN is steady state measurement, but we believe that timing errors heavy affect digital to analog conversion.

… one of the things I (and as I read it, lasercut) were wondering about is if the PN measurements also use some kind of averaging of measurement points – thus somehow allowing for “timing instability” to appear in practice – even if the PN measurement looks fine? I am thinking that it could be similar to FFT measurements where many measurements often are averaged in a given FFT spectrum … but in doing so it likely does not show the variations that may be between the averaged results (may of cause be analyzed statistically but this again may not show the individual measurement’s variations).

Do you know about this?

Cheers,

Jesper