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TCAN857-Q1: CAN Termination

Thrinesh S
Prodigy 80 points
Part Number: TCAN857-Q1

Tool/software:

Hi Team,

For CAN Transceivers there will be a Split Termination of 60 Ohm and 4.7nF capacitor makes Low Pass Filter. How actually it filters only the noise.

  • 0
    TI__Guru 51816 points

    Hi Thrinesh,

    The filter attenuates high-frequency common mode noise by shunting it to ground while preserving CAN signal typically u1 to 5 Mbps. Hence, the cap primarily acting on common mode noise and not differential, thereby reduces EMI without distorting the intended signal, I.e., 1/(2*pi*RC) as the cutoff freq, attenuating common mode noise above the freq and preserving signal integrity, thanks.

    Best Regards,

    Michael.