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A 42-Gb/s PAM-3 Transmitter With a CML Driver and a Dual-Mode Encoder for Process-Variation-Tolerant Middle-Level Generation

A 42-Gb/s PAM-3 Transmitter With a CML Driver and a Dual-Mode Encoder for Process-Variation-Tolerant Middle-Level Generation 150 150
Author(s): Seungwoo Park, Taehwan Kim, Changmin Sim, Seongcheol Kim, Junseob So, Hwaseok Shin, Seon-Been Lee, Chulwoo Kim

Abstract:

This letter presents a 42-Gb/s differential pulse-amplitude modulation (PAM-3) transmitter using a current-mode logic (CML) driver and a dual-mode 3B2T encoder for process-variation-tolerant middle-level (M-level) generation. The encoder selects between two M-level encoding schemes to compensate for load-resistor and driver-current-path mismatches with minimal logic overhead, reducing the standard …

Published in: IEEE Solid-State Circuits Letters
Page(s): 234 – 237
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3720204
Publisher: IEEE

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Modern Wireline Transceivers

Modern Wireline Transceivers 150 150
Author(s): Tony Chan Carusone, Timothy O. Dickson, Samuel Palermo, Sudip Shekhar, Mozhgan Mansuri

Abstract:

Over the past two decades, ever-increasing network bandwidth (BW) demands in data centers and high-performance computing systems have fueled exponential growth in per-lane serial link data rates. To keep up with this demand and enable faster communication over BW-limited electrical channels, wireline transceiver architectures and circuit topologies have rapidly evolved …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 395 – 422
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3642231
Publisher: IEEE

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A Machine Learning-Inspired PAM-4 Transceiver for Medium-Reach Wireline Links

A Machine Learning-Inspired PAM-4 Transceiver for Medium-Reach Wireline Links 150 150
Author(s): Ramin Javadi, Tejasvi Anand

Abstract:

This article presents an energy-efficient machine learning-inspired PAM-4 wireline transceiver that leverages data encoding at the transmitter (Tx) and feature extraction with classification at the receiver (Rx) to compensate for channel loss ranging from 13 to 26 dB, while maintaining the bit error rate (BER)<10-11. A new consecutive symbol-to-center (CSC) encoding …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3616072
Publisher: IEEE

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