• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 143 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.

DS90UB960-Q1: insertion loss

Tony Tsai
Prodigy 110 points
Part Number: DS90UB960-Q1

Hi Team,

Good day,

as I know the  DS90UB960-Q1 can compensate insertion loss up to -19.2dB at 2.1GHz, but PCB insertion loss define 1.2dB, it is show on datasheet of page 28 and 29.

currently our design as attached picture, two channel trace to long around 4.5 inch, so the PCB insertion loss more then 1.2dB around 4.7dB.

Can we compensate it on PCB? maybe we need shorten cable length then to meet the budget .

or we need keep PCB loss on 1.2dB?

Best regards,

Tony

  • 0
    TI__Expert 5480 points

    Hi Tony, 

    The -1.2 dB value is just given as an example, so you do not have to match. If your PCB insertion loss is higher, you can compensate by having a shorter cable. What important is to make sure you are below the total channel budget of -19.2 dB which will consist of the entire path from SER-DES. 

    Thanks, 
    Sally