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TLIN1029-Q1: Schematic review

Kygo Cheng
Expert 6830 points
Part Number: TLIN1029-Q1


Hi Team,

There is a good new that DIN TLIN1029-Q1

Please help check this SCH, THX

  • 0
    TI__Guru 74352 points

    Kygo,

    Thanks for bringing this to our attention on E2E. 

    • The pull-ups on both TXD and RXD are of appropriate value.
    • The LIN bus components look correct, though the commander pull-up value is 30k, but it should be 1k according to the LIN spec, any particular reason why?
    • VSUP has decoupling capacitance on it which is correct. Make sure C42 is close to the pin in the layout.
    • Why are there series resistors on TXD and RXD? To lower the amplitude of incoming noise? I ask because these are higher values than I'm used to seeing with series resistances on logic signals.

    Regards,

    Eric Hackett