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LMH0341: when the input side equalizer not using

Babu Mucharla
Prodigy 120 points
Part Number: LMH0341
Other Parts Discussed in Thread: LMH0044

Tool/software:

Hi team,

we are using LMH0341 deserializer IC. What we do in my project is we are giving HD-SDI video signal directly without any input equalizer.

i saw some reference design(attaching jpeg) for without equalization. same thing ia m connected(attaching jpeg).whenever i connected video signal input we are not getting output and even not increased any current when we are giving input signal 

  • 0
    TI__Expert 5090 points

    Hi Babu,

    Most SDI interfaces require an equalizer to meet performance requirements. For HD-SDI and SD-SDI applications, the LMH0044 is an ideal equalizer to use for this. The RXIN0+/-  pins are 100 ohms differential, so the current schematic configuration you have above has not been validated.

    Best,

    Nick