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TCAN1462-Q1: CAN interface issue:- Differential signal Recessive mode failure

Pankaj R₹
Prodigy 10 points

Part Number: TCAN1462-Q1

Issue:- Differential signal Recessive mode failure

Observing failures for signal parameters :

  1. Differential_MAX_REC. 
    Expected: -120mV to 12mV 
    measured: 204mV to 300mV



can you please guide on the fix for this ?

  • 0
    TI__Guru* 79692 points

    Hi Pankaj,

    The bus seems heavily loaded.

    Hence, please change your scope from the shown 50 ohm impedance to high impedance and re-verify after ensuring the bus is properly terminated similarly to the CAN standard, thanks.

    Best Regards,

    Michael.