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TS3DV642: 1:3 DP/HDMI Mux

Part Number: TS3DV642

Hi Sirs,

Sorry to bother you.

1. If use Mux, the signal drop is refer Insertion Loss, right?
2. If the AMD DP max length is 8000mil, how much does the line length need to be deducted when using TS3DV642?
3. If you use the second order, what other problems will there be? (as follows)
  • Shu-cheng

    Would you please provide more detail on the signal drop?

    It depends on the insertion loss of the 8000mil, plus the TX driving capability and receiving capability. The TS3DV642 has the following
    – Insertion Loss (DC)
    – Port A: –0.75 dB
    – Port B: –1.0 dB
    – Return Loss (at 1.7 GHz): –15.9 dB

    You need to make sure TX and RX can compensate the loss of TS3DV642 + 8000 mil.

    What do you mean by second order?

    Thanks
    David
  • Hi Sirs,

    1. Could you kindly let us know how many trace length on -1dB? (FR4)

    Ex. -1dB around 1000mils ? or -1dB around 1500mils.

     

           2. How to make sure the two TS3DV642 can workable?

  • Shu-cheng

    Assume 6G data rate, 5mil width trace, 0.02 FR4 dissipation factor, 4.3 FR4 dielectric constant, the approximated insertion loss is 0.63*0.63
    dB/in. With 1dB, that's 1.58in.

    The TS3DV642 can be cascaded together, it is a passive FETs switch. The limiting factor is your TX and RX capability on the signal path and the data rate your signal chain needs to support.

    Passive FET switches do not have any drive capability and are not ideal wires having parasitic resistances Rdson or Ron and capacitances Con. Each switch you place in serial will add these parasitic values to your signal path.

    Thanks
    David