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TCAN1043A-Q1: Long propogation delay time tpHR

Jiahao Yu
Expert 3305 points
Part Number: TCAN1043A-Q1

Tool/software:

Hi Expert,

For propagation delay time tpHR, customer measured minimal 95ns for the best case. Can you provide any advice to improve it?

Best,

Jiahao

  • 0
    TI__Mastermind 22130 points

    Hi Jiahao,

    The bus load especially the capacitance load can heavily affect the timing characteristics, the test condition in datasheet does not necessarily same as the added components, it refers to the whole loads on the bus which can include harness, a secondary transceiver and PCB traces. And the typical value in datasheet is measured with a input signal on TXD have rise time and fall time (10% to 90%) of less than 10 ns, if the purpose is to verify datasheet specification, they need to strictly meet those test conditions.

    Regards,

    Sean