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TX810EVM: How to connect TX517EVM output to TX810EVM input?

Part Number: TX810EVM

Dear TI Friends,

We would like to create a sonar transmit and receive system. Here is our final goal :  TX517EVM -> xdcr -> TX810EVM-> AFE5809EVM->TSW1400EVM. However, at this stage I would like to verify the system without using a transducer. So, this post (e2e.ti.com/.../401398) suggests doing this this: TX517EVM -> TX810EVM-> AFE5809EVM ->TSW1400EVM.

Question: I would like to know how to properly connect our TX517EVM output to TX810EVM input. Perhaps we should do as follows, but because the output of TX517EVM has very high voltage, I'm worried that I make a mistake and damage the system. Please verify the accuracy of the following statement: 

We should connect the OUTA (J2) of TX517EVM  to the IN1 (J1) of TX810EVM. Then we can connect the OUT1 (J9) of TX810EVM to INP1 (J1) of AFE5809EVM. The OUT1 of TX810EVM has low voltage, so It's safe to be connected to the input of our AFE5809EVM.

As always, thank you for your kind help.

  • I'm still waiting for your feedback. Thank you :)
  • Any response is appreciated.
  • In reply to Sajad Rahmdel:

    Sajad,

    Sorry for the delay, the applications engineer has been out and has not had the chance to reply.

    Amy Schnoor

    HealthTech

    Mixed Signal Applications

    Our TI Medical E2E Forum is a large and dynamic support community!

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  • In reply to Amy Schnoor:

    Hi Sajad,

    Figures 14 and 15 in the TX810 datasheet here show the AC-coupled connection between the output of the TX517 and an input of the TX810 (8-channel switch). Also, the maximum ratings of the device shown below should help.

    Sincerely,

    Olu

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