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DS15EA101 Enable Pin, and VCC Isolation

Robert Curtis
Intellectual 430 points
Other Parts Discussed in Thread: DS15EA101

First question:

When the DS15EA101 is disabled, are the outputs (pin 10,11) tri-state?

Second question:

What is the power of the DS15EA101 when it is disabled?

Third question:

My application  will be supporting 30 data channels, each with its own DS15EA101.  All equalizers are on the same power plane.  Should I take steps to isolate the equalizers' VCC (maybe ferrite bead and local decoupling on the power pin) from each other?


Thank you for any help you can give.

  • 0
    TI__Mastermind 43795 points

    The DS15EA101 outputs remain active when the "disabled" however they do not switch with the incoming data.  The static outputs creates a "mute" effect after the AC coupling capacitors attached to the output.

    The current consumption does not change with the state of the EN* pin.

    The DS15EA101's should not require special isolation (like ferrite beads) between device VDD connections.  Low inductance local decoupling and bulk decoupling are recommended to keep supply noise to a minimum.

    Regards,

    Lee