Decision-feedback equalisation (DFE) is explored to reduce intersymbol interference and crosstalks in high-speed backplane applications. In the design of the clock and data recovery circuit, embedding DFE within a phase and frequency detector enhances the recovery of data inherently from distorted input signals and facilitates providing DFE with the recovered clock.

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Journal Electronics Letters
Li, M., Huang, W., Wang, S., & Kwasniewski, T. (2006). 0.18 μm CMOS backplane receiver with decision-feedback equalisation embedded. Electronics Letters, 42(13), 752–754. doi:10.1049/el:20061116