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LMH1218: Inquiry regarding SDI circuit configuration

Gaewon Seo
Prodigy 20 points

Part Number: LMH1218
Other Parts Discussed in Thread: LMH1228

 

I would like to configure the circuit as follows.

 

 

I want to implement Cable EQ at the receiving end after the SDI transmitter and the cable.
Additionally, I would like to loop back the SDI signal and send it out again.

I believe the circuit for Cable EQ can be configured using the LMH1218.
Is there a TI component that would be suitable for configuring the loop-back?
Or is the LMH1218 capable of this loop-back function?
I would appreciate your help.

  • 0
    TI__Guru**** 192771 points

    Hi,

    You can use LMH12x9 and LMH1228 as a possible solution for this design.

    The LMH12x9 takes in SDI data at the SDI_IN adaptive cable equalizer input and outputs the reclocked SDI signal at OUT0 (primary output) and OUT1 (optional secondary output). Meanwhile, a redundant reclocked loop-through SDI signal is output on SDI_OUT for system monitoring or cascade purposes.

    Thanks

    David