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TMUX1309-Q1: TMUX1309-Q1 & LVDS signals

jeno.zhang
Expert 2435 points
Part Number: TMUX1309-Q1
Other Parts Discussed in Thread: TS5A23157-Q1, TS3A5017-Q1, SN3257-Q1

hi TI,

Question 1: Can TMUX1309-Q1 be used to switch LVDS signals?

Question2：I don't understand why the on resistance is so large, as shown in the figure below：

  • 0
    Guru 281350 points

    1. You can use any switch that supports the desired voltages and frequencies. The on resistance of the TMUX1309-Q1 might be too high. Consider the TS3A5017-Q1, or the TS5A23157-Q1/SN3257-Q1 if you need only a 2:1 mux.

    2. This device has been optimized for other paramters (that do not really matter for digital signals).

  • 0
    TI__Genius 10974 points

    Hello,

    The large ON-resistance is just due to the architecture of the device itself. We have other devices that would be more suited for LVDS applications that would have a better RON and bandwidth specification. The ones I would suggest would be the SN3257-Q1 if you need the higher bandwidth or the TS3A5017-Q1 if you do not necessarily need 2GHz of bandwidth and would prefer the 4:1x2 channel configuration.

    Thanks!

    Bryan