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  • TI Thinks Resolved

SN6505A: about CLK pin handing when it is not used.

Part Number: SN6505A

HI team

if i don't use external clock, I has to leave the CLK pin as floating ? or has to connect the CLK pin to GND ?

please give me the correct guide.

  • Hi Mr. Kim,

    The SN6505 clock pin is internally grounded so it is okay to float the connection or connect it to ground. In both circumstances the internal clock will be used.

    Do you currently have this pin grounded or floating?


    Best,
    Manuel Chavez
  • In reply to Manuel Chavez:

    Hi Chavez

    I am promoting it to customer.

    so, not yet made a board.

  • In reply to Paul Kim:

    Hello Kim,

    Success on presenting this device to our customer. It has integrated features like soft start which is necessary to drive capacitive loads >5uF and spread spectrum clocking to decentralize emissions frequencies. Internal thermal shutdown and current clamps also help protect the device.

    If ESD strikes are expected on the clock pin, it would be best to ground this otherwise it is up to the customer.


    Thank you for posting to E2E,
    Manuel Chavez

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