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Channel operating margin exploration as a complementary transceiver circuit design tool for 25 Gbps PAM4 serial links
Citation Link: https://doi.org/10.15480/882.13086
Other Titles
Exploración del margen operativo del canal como herramienta complementaria para el diseño de circuitos transceptores con enlaces seriales PAM4 de 25 Gbps
Publikationstyp
Journal Article
Date Issued
2024-05-29
Sprache
English
TORE-DOI
Journal
Volume
44
Issue
2
Article Number
e106310
Citation
Ingenieria e Investigacion 44 (2): e106310 (2024)
Publisher DOI
Scopus ID
Publisher
Univ. Nacional de Colombia, Facultad de Ingenieraia
The design of high-speed serial links continues to attract the attention of the electronics industry due to the steady development of different telecommunications standards, generating a constantly growing data rate and new modulation schemes. However, conventional certification metrics can lead to sub-optimal transmit (Tx) and receive (Rx) circuit designs. Therefore, the Ethernet standard IEEE 802.3bj introduced a more effective evaluation method called channel operating margin (COM) to explore the design space at an early stage. Although the advantages of COM have been discussed in the literature and only a few works explore its potential as a backplane design tool, there are no reports on the use of COM as a complementary design tool for transceiver circuits. This work studies the use of COM as a complementary tool for transceiver design. COM performance is evaluated for four 100GBASE-KP4 backplanes and different equalization architectures. The impact of the metric and the challenges associated with incorporating new equalization structures into the COM flow are discussed. The results reveal a conventional Tx-Rx architecture that exceeds the COM threshold and an alternative one that improves the opening of the eye diagram but does not exceed the threshold.
Subjects
COM
equalizers
eye diagram
IEEE 802.3ck
single-bit response
DDC Class
621.3: Electrical Engineering, Electronic Engineering
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Name
106310__UN_.pdf
Type
Main Article
Size
1.54 MB
Format
Adobe PDF