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TMS320F28388S: do we have spec of the communication speed vs. cable length for FSI?

Howard Zou
Genius 12365 points
Part Number: TMS320F28388S

Hi,

my customer wonder if we have the data of communication speed vs. cable length for FSI.

  • 0
    TI__Mastermind 42686 points

    Hi Howard,

    We do not currently have quantitative data available to show for this. We've performed tests in a low noise lab environment without any additional buffers/transceivers and can achieve ~10-18cm with simple jumper wires. However when integrating into a real system that's prone to noise, extra care and testing should be carried out to ensure that signal integrity is maintained and communications are robust during all run-time scenarios.

    If communicating over a long distance we highly recommend using differential transceivers, as they significantly help with rejecting noise.

    Digital isolators or buffers should enable you to transmit/receive further as well, but not nearly as far compared to differential transceivers. Using a slower communication speed would help as well, as you probably know already.

    Best,

    Kevin