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TS3A44159: Could use on dual SIM switch?

Shu-Cheng LIN
Guru 11785 points
Part Number: TS3A44159

Hi Sirs,

Sorry to bother you.

We would like use TS3A44159 on dual SIM switch application,

But we don't saw any "SIM" keyword on datasheet.

The competitor is FSA2567

Have any customer same as our application and use TS3A44159 before?

Could you help double confirm TS3A44159 can use on dual SIM switch application?

Thanks!!

  • 0
    TI__Expert 3180 points

    Hello Shu-Cheng,

    Functionally yes, you can use our switch in place of the FSA2567 functionally, but it must meet certain conditions. I looked through the datasheets of both parts, and they have the same Vcc range, we have better Icc, and very similar Ron for the paths that are sensitive to it. I have also glanced at the timing and the on capacitance of the parts, and there are certain places where we are lacking: 

    FSA2567 On Capacitance snippet:

    TS3A44159 On Capacitance Snippet:

    One other spec i would keep an eye on when checking would be the bandwidth of the devices.

    Also please note that the FSA2567 uses 1 pin to control 4 channels where we use 2 to control 2 channels, but based on their function diagram, you can tie the two select pins (IN1-2, IN3-4).

    Thank you, 

    Louie

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