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DS160PR410: AC-coupling capacitor

K.Yaita
Guru 29720 points
Part Number: DS160PR410

Hi Team,

The datasheet shows the following
(datasheet page 20)
>Place AC-coupling capacitors near to the receiver end of each channel segment to minimize reflections.

Could you tell me why reflection is minimized in this case?

Best Regards,
Yaita

  • 0
    TI__Guru* 93670 points

    Hi Yaita-San,

    This is because the receiver - due to its parasidic in the signal path -  has impedance deep or reduction when comparing with AC coupling cap pads parasidic. Putting AC coupling cap close to the receiver, we would see one reflection - mainly due to the receiver parasidc - versus reflections from two sources.

    Regards,, Nasser