System-Level Modeling Methodology of ESD Cable Discharge to Ethernet Transceiver Through Magnetics

Abstract

When a charged cable is plugged into an Ethernet connector, a cable discharge event (CDE) will occur. Ethernet transceiver pins are often affected by CDE as they are usually unshielded. The discharge current couples via the transformer and common mode chokes to the physical layer-integrated circuit and may damage it. This paper describes a methodology for CDE system-level modeling in SPICE taking the cable geometry into account via full-wave modeling and cross-sectional analysis. A charged cable model, a nonlinear magnetics model, an Ethernet transceiver pin model, and the traces in the system are combined to create a complete model. An Ethernet system suffering cable discharge was selected to illustrate the methodology. The simulation is compared to measurements.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Cables; Ethernet; Network layers; Transceivers; Cable discharge events; Cross sectional analysis; Discharge currents; Ethernet transceivers; Full wave modeling; Nonlinear magnetics; Physical layers; System-level modeling; SPICE; electrostatic discharge; Ethernet transmission line pulse (TLP); system efficient ESD design (SEED)

International Standard Serial Number (ISSN)

0018-9375

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Oct 2016

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