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TMUX1574: Can TMUX1574 be used to switch SIM Card signal

Intellectual 1715 points

Replies: 2

Views: 77

Part Number: TMUX1574

Hi team,

My customer is considering to use FSA2567 to switch the SIM Card signal. I checked our device and it seems TMUX1574 has similar spec. But FSA2567 is specifically used to switch SIM Card signal while TMUX1574 is a genera MUX device. So could you please help on:

1. Can we use TMUX1574 to do SIM Card signal switch just as FSA2567

2. When we choose a mux to switch SIM Card signal, which spec needs to pay special attention?


Best regards,


  • HI Wayne,

    When selecting a MUX for SIM card signal, the key specs your would look for is low CON, low RON and high data rate support. You also need to look at the supply voltage and input voltage requirements for your application.

    See the comparison for key specs between the TMUX1574 and  FSA2567:

      FSA2567 TMUX1574
    CON (pF) 10 7.5
    RON (Ohm) 6 2
    Bandwidth 475 MHz 2 GHz
    Voltage Supply  1.65 V to 4.3 V  1.5 V to 5.5 V

    Based on your application requirements, you can use TMUX1574 for SIM card signal switching.

    Please let me know if you have any questions.



  • In reply to Saminah C:

    HI Wayne,

    Please also see the TMUX1574 SIM Card use for more details: 

    Please let me know if you have any questions.