This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TS3L501E: Multiplexer for 100Base-T

Part Number: TS3L501E

Hi team,

I'm looking for Multiplexer for Ethernet 100Base-T(1 to 2) and I found TS3/5Lxxx LAN switch.

there are 8 devices supporting 100Base-T and could you let me know what is the best device for 100Base-T mux or could you brief explain how to select 100Base-T mux?

in addition, My customer is worried about 100Base-T signal integrity like return loss/insertion loss when they use Mux to switch 100Base-T.

in datasheet, we can see gain/off isolation/phase/xtalk vs frequency but I don't know how these parameters influence 100Base-T data communication.

if there are any criteria or 100Base-T test data with LAN switch, could you share?

Regards,

Kai

  • Hi Kai,
    I am assuming you were using the protocol specific filtering mux and switches tool:
    www.ti.com/.../products.html

    The 8 devices have different supply voltage range, channel configuration, etc. If you are looking for 8 channels SPDT, TS3L501E is a good fit.

    The definition for each of the parameter you mentioned is different:

    Insertion loss is loss of signal power from insertion of a device, which in this case is passing through a switch.
    Off isolation is defined as the voltage at the drain pin when a signal is applied to the source pin of an off switch.
    Crosstalk is defined as the voltage at the source pin of an off-channel, when a signal is applied at the source pin of an on-channel.

    Each of these parameters varies based on what frequency you are running at.

    Regards,
    Helen