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LMH0340: LVDS INPUT

chenyang wang
Prodigy 20 points

Part Number: LMH0340

LVDS Input Electrical Characteristics in datasheet for LMH0340, the Vcm is from 0.05V to 2.4V.

Does it only support DC couple?  As shown in figure 14 Typical SMPTE Application Circuit

If I use AC couple， I need to add DC bias resistors？

  • +1
    TI__Guru* 93570 points

    Hi Chenyang,

    LMH0340 inputs comply with LVDS specifications. If your driver can comply with the input common mode voltage of the LMH0340 then you can DC couple. Otherwise, you can AC couple as well. There is internal weak bias circuitry that sets the common mode voltage(in case of AC coupling).

    Regards,Nasser