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ISO7820LL: About tsk

Ryoma Ohashi
Expert 4430 points
Part Number: ISO7820LL

Hit team,

For ISO7820LL, datasheet says tsk of this device is 

　tsk(o)    Max2.5ns

　tsk(pp)  Max4.5ns

Does this means that the maximum skew time for the 4 channels is  tsk(pp)+tsk(o)=4.5ns+2.5ns=7.0ns?

Regards,

Ohashi

  • +1
    TI__Expert 8030 points

    Hi Ohashi-san,

    Thanks for reaching out.

    The channel-to-channel output skew time (tsk(o)) and the part-part skew time (tsk(pp)) are independent from each other. They are not additive. Therefore, when determining the maximum output skew time, you should use tsk(o) for the maximum output skew time of a single device, and tsk(pp) for the maximum output skew time between two separate devices.

    Regards,

    Kenneth