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TX-SDK-V2 characteristics

Yorick Heimberg
Prodigy 110 points
Other Parts Discussed in Thread: LM96570

Hello,

I'm looking for some datas regarding the TX-SDK-V2.

I don't find in the datasheet any informations about the frequency and amplitude ranges of the board. Would you have them ?

How does the T/R Switch commute ? Is there a minimum amplitude required ?

Thank you for your help and best regards,

Yorick

  • 0
    TI__Genius 14540 points

    Hi,

    We received your questions regarding the TX-SDK-V2 and will get back with you shortly with a response.

    Thanks

  • 0
    TI__Intellectual 1560 points

    Hi Yorick,

    The max frequency of the TX-SDK-V2 is 15MHz, limiting by the LM96550. The amplitude at the output of the LM96570 is 3.3Vpp, at the output of LM96550 is up to +/-50Vpp (depending VPP and VNN) and at the output of the LM96530 is clamp to +/-0.7Vpp. The T/R switch is use to protect the receiver from the high voltage transmitter by clamping the signals to +/-0.7Vpp. If the input signals of the LM96530 is higher than +/-0.7Vpp, the output will clamp to +/-0.7Vpp. Other wise, the input signals is pass thru the output.


    Regards,

    Charles

  • 0 in reply to Charles Guan
    Prodigy 110 points

    Dear Charles,

    Thank you very much for your answer.

    One point is still unclear to me ; the 15MHz limit (because of the LM96550) means that we cannot acquire frequencies above 15MHZ or that the pulser cannot generate higher frequencies ?

    Thanks again,

    Yorick

  • 0 in reply to Yorick Heimberg
    TI__Intellectual 1560 points

    Hi Yorick,

    The LM96570 generate pulses (frequencies) to the LM96550. With the transducer load of 150pF or greater, the LM96550 can response fast enough for frequency greater than 15MHz.


    Regards,

    Charles