• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 82 subscribers
  • Views 150 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28P650DK: phase mearement with CMPSS

HS FAE Germany
Mastermind 32400 points
Part Number: TMS320F28P650DK


Hello,

customer need the comparators to measure a phase that is coupled from several channels into the comparators. Important is that each channel has the same time delay (propagation delay) through the comparator. The Datasheet is stating the 21ns typical delay but not the variation between the channels. Is that information avaiable?

Regards, Holger

  • 0
    TI__Mastermind 36526 points

    Hi,

    Please allow me to look into this and I will get back to you tomorrow.

    Best Regards,

    Ben Collier

  • 0 in reply to Benjamin Collier
    TI__Mastermind 36526 points

    Holger,

    We do not give specifications for the variations between channels, so I think it would be good to design for the worst case scenario. From the datasheet, that is given as 60ns, but that is probably looking at a longer signal chain than the customer will be using.

    Is the customer planning to use the CMPSS asynchronously then feeding that output to something like the ECAP module? What is their tolerance for variation in propagation times between the channels? 

    Best Regards,

    Ben Collier