TMS320F28375S: Applicable jitter formula

Hi,

No, this formula does not apply to F2837x family.

Regards,
Nirav

Hi Nirav,

So what formula should we apply for the F2837x?

My customer is looking for the C2000 solution offering the best jitter performance. Any collateral on this parameter across our families, would be welcome.

Regards,

Hi,

Currently we do not have any collateral on Jitter calculations for F2837x devices.

There are different ways to calculate jitter on the System clock, but will need to find what is the design spec on PLL that is used on F2837x devices to better assist you with the formula. I will have to check with experts, will get back to you by end of next week.

Regards,
Nirav

Hi Nirav,

Did you get more details on the formula to apply?

Regards,

Hi,

I do not have definite answer for you, but I can give you a high level summary on how the Jitter numbers on F28375S looks like.

Period Jitter = 50ps.

Period jitter is calculated using 6sigma values from spectrum analyzer by bringing out the PLL clock on XCLKOUT. 

Regards,

Nirav

  

Hi,

Do you still have any questions, if not please close this thread.

Thanks,
Nirav

Hi Nirav,

We would expect to get a formula, as given for our other C2000 versions.

But if it's not possible, we can close this thread.

Regards,