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TLK10031: About unused pins

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Guru 21045 points
Part Number: TLK10031
Other Parts Discussed in Thread: TLK10232EVM

Hi Luis-san,

 

Our customer don’t use the following pins.

-LOSA (E9 pin)

-LS_OK_OUT_A (D9 pin)

-PRBSEN (B9 pin)

-PRBS_PASS (J9 pin)

 

Then, I understand that they can open the unused pins(No connect).

Is my understanding incorrect?

 

And, I have one more question.

I understand that GPIO pins should be grounded through a resistor on the device application board.

Could you please let us know if you have any recommended resistor value?

 

Regards,

Kanemaru

  • 0
    TI__Genius 16150 points
    Hi Kanemaru,

    LOSA
    LS_OK_OUT_A
    PRBS_PASS

    Can be floated.

    Otherwise, PRBSEN please connect it to GND to disable the PRBS function, I am suggesting this since this pin is a control input.

    For GPIO pins place resistors of ~49.9K should be fine for the application according to the TLK10232EVM (dual channel version) design.

    Best Regards,
    Luis Omar Moran
    High Speed Interface
    SWAT Team
  • 0 in reply to Luis Omar Moran
    Guru 21045 points

    Hi Luis-san,

    Thank you for the information.

    I understand. Thank you very much.

    Regards,

    Kanemaru