@inproceedings{0b5a87d53bfa41feb6b68a18cc997ab8,
title = "0.41-pJ/b/dB Asymmetric Simultaneous Bidirectional Transceivers With PAM-4 Forward and PAM-2 Back Channels for 5-m Automotive Camera Link",
abstract = "This paper presents asymmetric simultaneous bidirectional (SBD) transceivers for the next-generation automotive camera link. To realize the SBD operation with the PAM-4 signaling, the proposed wide linear range (WLR) hybrid excludes the voltage-dependent non-linear transconductance (gm) of active elements. A two-step hybrid strategy suppressing the PAM-4 forward channel (FC), including the FFE, is utilized for low power and design simplicity. A Sa hybrid removes only four primary DC levels, and 2nd order gm-capacitor (gmC) low-pass filter (LPF) filters out residual/echoes from the hybrid/channel. An echo canceller (EC) technique is also employed to further reduce the reflections of the PAM-2 back channel (BC). The highly asymmetric SBD transceivers with 12-Gb/s PAM-4 FC and 125-Mb/s PAM-2 BC achieve BER<10-12 over 5-m cable (15.9 dB loss). Prototype chips fabricated in 40-nm technology consume 78.4 mW, exhibiting an FoM of 0.41 pJ/b/dB.",
keywords = "asymmetric, bidirectional, hybrid, transceiver",
author = "Yunhee Lee and Woonghee Lee and Minkyo Shim and Soyeong Shin and Choi, {Woo Seok} and Jeong, {Deog Kyoon}",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022 ; Conference date: 12-06-2022 Through 17-06-2022",
year = "2022",
doi = "10.1109/VLSITechnologyandCir46769.2022.9830299",
language = "English",
series = "Digest of Technical Papers - Symposium on VLSI Technology",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "30--31",
booktitle = "2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022",
address = "United States",
}