Dydeb
Newbie
Hi all,
I've recently been working on high-speed digital communications (multi-GHz) and wasn't able to figure something out about equalization and all the cases where it is used.
From my understanding, equalization is used only for countering the effect of channel attenuation: if you have a channel with a 20 dB loss than you will use an EQ with approximately 20 dB gain (or less) in the pass-band to flatten out the channel frequency response up to your frequency of interest.
My question is, could you use equalization to counter the behavior from package/die parasitics as well? Since a parasitic capacitor will also act as an attenuator at higher frequencies, its frequency response would be similar to that of a channel. In this case, could a receiver with large package/die parasitics be improved through EQ as well?
Thank you all for your replies
I've recently been working on high-speed digital communications (multi-GHz) and wasn't able to figure something out about equalization and all the cases where it is used.
From my understanding, equalization is used only for countering the effect of channel attenuation: if you have a channel with a 20 dB loss than you will use an EQ with approximately 20 dB gain (or less) in the pass-band to flatten out the channel frequency response up to your frequency of interest.
My question is, could you use equalization to counter the behavior from package/die parasitics as well? Since a parasitic capacitor will also act as an attenuator at higher frequencies, its frequency response would be similar to that of a channel. In this case, could a receiver with large package/die parasitics be improved through EQ as well?
Thank you all for your replies