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ADS4449: Schematic review

Guru 12835 points

Part Number: ADS4449

Hello team,

Could you please help review the schematic below?

ADS4449_review.pdf

Thank you.

JH

  • JH,

    The ADS4449 is a LVDS output device. You need to remove all series 22 Ohm resistors on the output data lines and the output clocks and replace them with a single 100 Ohm resistor that will be connected across every +/- pair 2746.Transformers.pptif the device they are driving does not have internal 100 Ohm differential resistors.

    I would suggest looking into using two transformers for every analog input to improve performance. See attached document. Everything else looks fine.

    Regards,

    Jim