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TS3L110 LAN switch configuration

toshi-e2e
Genius 4735 points
Other Parts Discussed in Thread: TS3L110, TS3L500

Hi all,
my customer plans to use TS3L110 as LAN Switch as follows.
Board-A and Baord-B are the fixed and cannot modified. 

Is there any problem  in the below configuration?


Regards,
Toshi
 

  • 0
    TI__Mastermind 45370 points

    Toshi,

    The use case you show above is valid for this TS3L110 signal switch.  When you continue with your design make sure that you are following the recommendations in the datasheet.

    Thank you,

    AAdam

  • 0 in reply to Adam Torma
    Prodigy 20 points

    Adam,

    What is the typical use case for TS3L110? Is it usually used only to switch signals between the PHY and the magnetics?

    I am looking to use TS3L500 for an application where I need to either connect to a line, or forward it (shown in the diagram below). I am worried that adding the additional transformers and the switch resistance in the MUX will attenuate the forwarded signal too much, do you know if this is the case?

  • 0 in reply to Eric Buckley
    TI__Mastermind 45370 points

    Eric,

    The typical use case for the TS3L1100 is to route signals from one source to two different places or isolate a bus.

    I do not know if the additional transformers and the TS3L500 switch resistance will attenuate the forwarded signals "too much."  I do know that max attenuation you could see through the TS3L500 mux is 6 ohms.  

    Here is a link to an application note to help you minimize the signal degradations in your system. High-Speed Interface Layout Guidelines

    Thank you,

    Adam