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LMH0324: Use of a balun at the input

Matthias Bluemle
Prodigy 30 points
Part Number: LMH0324
Other Parts Discussed in Thread: LMH0318

Hello,

I must isolate the SDI signal on the PCB board. So my idea was to use a balun at the input. It should transform the unbalanced Signal from the BNC connector to an balanced signal, which I would connect to the IN+ and IN- of the LMH0324. Is this working? The datasheet only shows the use as an unbalanced input!

Vice versa, I also need to this on the output side with the LMH0318.

thanks and greetings

Matthias

  • 0
    TI__Guru* 88835 points

    Hi Matthias,

    Please note LMH0324 and LMH0318 are mainly used and characterized for SDI market where these devices used in a single ended fashion. For isolation purpose, perhaps one to one 75-ohm transformer with adequate bandwidth can be used. Please check with Pulse Transformer regarding this component.

    Regards ,, Nasser