• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 380 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.

DS90UB953-Q1: DS90UB953-Q1 Back channel input jitter (tJIT-BC) Spec Question

Jimmy Liu57
Prodigy 110 points
Part Number: DS90UB953-Q1
Other Parts Discussed in Thread: DS90UB954-Q1,

Hello Team,

DS90UB953-Q1 Back channel input jitter (tJIT-BC) note 2 shows that typical UI_BC is 100MHz. But DS90UB954-Q1 default back channel frequency is 50Mbps (UI = 20ns). So with default 50Mbps back channel rate, DS90UB953-Q1 back channel input jitter maximum should be 0.4 x 20ns = 8ns?

Thank you,

Jimmy

  • 0
    TI__Mastermind 30515 points
    Jimmy,
    it is typo. if you measure the back channel data rate in default mode from UB954 output (dis-connecting with UB953), it should be 100Mbps. so the spec. in the table is correct. we would adjust it in new d/s. btw, do you have issue on back channel? For TI, if the transmission channel parameter can be met, the BC jitter should be under control. thanks.

    regards,
    Steven