Reconfigurable FIR Filter Coefficient Optimization in Post-Silicon Validation to Improve Eye Diagram for Optical Interconnects
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Fecha
2017-06
Autores
Duron-Rosales, Ismael
Rangel-Patiño, Francisco E.
Rayas-Sánchez, José E.
Chávez-Hurtado, José L.
Hakim, Nagib
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Editor
IEEE
Resumen
Descripción
Enhanced small form-factor pluggable (SFP+) is a specification for a new generation of optical modular transceivers. The devices are designed for use with small form factor (SFF) connectors, and offer high speed and physical compactness. SFP+ modules require high-quality ASIC/SerDes transmitters (Tx) because IEEE and fibre channel standards place strict requirements on the optical interface, and linear/limiting SFP+ module types have Tx paths that do not correct for timing jitter. This introduces a design challenge to guarantee performance over process, temperature, and voltage (PVT) conditions. Adjusting the Tx equalization across PVT and different interconnect channels can be a time-consuming task in post-silicon validation. In order to overcome this problem, this paper proposes a direct optimization method based on a suitable objective function formulation to efficiently tune the Tx equalizer and optimize the eye diagram to successfully comply with industrial specifications.
Palabras clave
Equalization, Ethernet, Eye Diagram, FIR, HSIO, ISI, Optimization, Post-silicon Validation, Signal Integrity, SFP, Tuning, Transmitter
Citación
. Duron-Rosales, F. E. Rangel-Patiño, J. E. Rayas-Sánchez, J. L. Chávez-Hurtado and N. Hakim, "Reconfigurable FIR filter coefficient optimization in post-silicon validation to improve eye diagram for optical interconnects," 2017 International Caribbean Conference on Devices, Circuits and Systems (ICCDCS), Cozumel, 2017, pp. 85-88. doi: 10.1109/ICCDCS.2017.7959697