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Original question:

ISO7221A-Q1: VISO

ISO7221A-Q1: tsk(o)

Kuramochi Tadahiko
Guru 28715 points
Part Number: ISO7221A-Q1
Other Parts Discussed in Thread: ISO7220A-Q1, ISO7221C-Q1,

Hi,

"ISO722xC" was eliminated from tsk(o) by revising the datasheet as below.

Could you tell me why?

Best Regards,

Kuramochi

  • 0
    TI__Mastermind 49345 points

    Hi Kuramochi-san,

    As defined in the footnote (3) in the datasheet and also copied below, tsk(o) is the parameter that talks about the difference in propagation delay of two channels that are in same direction. Only ISO7220A-Q1 has two channels in same direction and hence it has tsk(o) defined for this device while ISO7221A-Q1 and ISO7221C-Q1 have only one channel in each direction and hence tsk(o) doesn't apply to these device and can't be defined. Thanks..

    1. (3)  tsk(o) is the skew between specified outputs of a single device with all driving inputs connected together and the outputs switching in the

      same direction while driving identical specified loads.

    Regards,
    Koteshwar Rao