ChannelExpert – Channel Exploration

Overview

It is challenging for digital system designers to simulate high-speed SerDes channels. There are many different simulation scenarios to cover ranging from pre-layout/post-layout, frequency-domain/time-domain/statistical analysis, compliance check, to TX/RX optimization. ChannelExpert offers many built-in channel templates to support pre-layout exploration. Parametric S-parameters and transmission line models are supported for easy channel exploration. For the post-layout scenario, it can extract the desired channels with or without crosstalk from physical layout with transmission line and 3D via models automatically generated with built-in solvers. Its powerful multi-board channel extraction allows SI engineers to establish the board-to-board connection through pin mapping and automatically extract channels across different boards. IBIS-AMI with various equalization techniques is supported for channel simulation. Channel Operating Margin (COM) is incorporated in the tool to enable a quick check. Industry standards for Ethernet, computing, storage, etc. are also embedded to enable easy compliance checking.

HighLights
  1. It is challenging for digital system designers to simulate a high-speed SerDes channels. There are many different simulation scenarios to cover ranging from pre-layout/post-layout, frequency-domain/time-domain/statistical analysis, compliance check, to TX/RX optimization.
  2. ChannelExpert offers many built-in channel templates to support pre-layout exploration. Parametric S-parameters and transmission line models are supported for easy channel exploration.
  3. For post-layout scenario, ChannelExpert can extract the desired channels with or without crosstalk from physical layout with transmission line and 3D via models automatically generated with built-in solvers.
  4. Channel Operating Margin (COM) is incorporated in the tool to enable a quick check.
  5. Integrated SnpExpert functions in ChannelExpert to automate compliance check for Ethernet, computing, storage, and other standard
Main Features

Add Channel from Pre-Layout Flow

  • Built-in “Add Channel by Table” to allow easy channel creation by table.
  • Built-in “Add Channel by Template” to enable quick channel build for various systems.

Different types of Component

  • Support import and edit S parameter.
  • Support create N-trace transmission line(TML).
  • Support add Independent Source and Spice model.
  • Support add IBIS/IBIS-AMI and Transceiver
  • Support add model from Xpeedic tool, such as Via Model.

Add Channel from Post-layout Flow

  • Support import multiple board to construct channels
  • Support fast pin mapping between connectors
  • Support auto transmission line and via model creation.
  • Quick to generate result with T-line 2D solver and fast cascading method.

Crosstalk and COM Analysis

  • Easy to set crosstalk in schematic.
  • Support quick crosstalk and COM Analysis.

Time Domain Analysis

  • Easy to plot V/t curve and Eye diagram in transient analysis.
  • There are two ways to do statistical analysis:
    1. Using IBIS-AMI model.
    2. Using Ideal Source with equalization, such as Emphasis/FIR in TX and CTLE/FFE/DFE in RX.

Parametric Sweep and Generate Report

  • Sweep S parameter file.
  • Sweep Transmission line setting ,such as trace length ,trace spacing, trace width etc.
  • Sweep substrate setting.
  • Support to generate report for schematic setting and plots from frequency analysis and time domain analysis.

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