• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 294 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

ADS4249: LVDS DC characteristics difference between ADS4249 and FPGA

JH Shin
Mastermind 8180 points
Part Number: ADS4249

Hello,

My customer would like to receive the LVDS output of the ADS4249 on an FPGA.

They found differences in LVDS DC characteristics between the ADS4249 and FPGA, as shown below.

Could the difference between the two DC specfications cause problems with the LVDS interface?

Is there a way to adjust the Vocm level on the ADS4249 ?

Thank you.

JH

  • 0
    TI__Guru* 91947 points

    JH,

    I do not see an issue with these specs. The ADC values are always within the spec of the FPGA. You cannot adjust the Vocm level of the ADC. If you are concerned about the Vocm, you could AC couple the data lines. Another option is to use a LVDS-to-LVDS repeater device.

    Regards,

    Jim