Overview of Signal Integrity Simulation for SFP+ Interface Serial Links with Advanced Design System (ADS)

Designing a high-speed serial link transmission line for SFP+ interface is challenging due to the high data rates up to 16 Gbps. The data recovery from a received serial data stream is negatively impact by channel loss, reflection, crosstalk, etc. To ensure the quality of the layout design, signal integrity (SI) simulation is required to give the designer some confidence before the data sent out for printed board fabrication. In this paper, the work for signal integrity simulation for the highspeed SFP+ interface serial link is present. The simulation setup for the serial link differential signals required TX and RX IBIS-AMI model and the passive channel model S-parameter data will be discussed. The RX and TX test bench will be created to optimize the equalization and pre-emphasis setting using Advanced Design System (ADS) simulation tool from Keysight. The result of the received data will be discussed. The optimized eye diagram generated in this study shows the quality of the SFP+ interface serial link design.