ECEN720: High-Speed Links Circuits and Systems Spring 2019

ECEN720: High-Speed Links Circuits and Systems Spring 2019

Lecture 8: RX FIR, CTLE, DFE, & Adaptive Eq.

Sam Palermo Analog & Mixed-Signal Center

Texas A&M University

Announcements

? Lab 5 Report and Prelab 6 due Mar. 27 ? Equalization overview and circuits papers

are posted on the website

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Agenda

? RX FIR equalization ? RX CTLE equalization ? RX DFE equalization ? Equalization adaptation techniques ? Advanced modulation/other techniques

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Link with Equalization

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Serializer Deserializer

TX FIR Equalization

? TX FIR filter pre-distorts transmitted pulse in order to invert channel distortion at the cost of attenuated transmit signal (de-emphasis)

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