HDMI Filter Demonstration

This example implements a filter for a High-Definition Multimedia Interface (HDMI) cable. The filter equations are from [1]. The "Causality Enforcement" paper describes the causality issues that can arise during transient analysis with the HDMI filter.

The schematic for the circuit is available in the Examples directory. Open the project from its file in the Examples directory.

  1. From the File menu, select Open Examples to open an explorer window.
  2. Open the Electronics Desktop directory, then Circuit, then Signal_Integrity, then select the file HDMI_Filter_Demo.aedt. Click Open.
HDMI Filter Demo Project.

In this example, the filter is realized by fitting a state-space model to a causal transfer function provided in a CTLE data file, HDMI_transfer_function.ctle. The magnitude of this transfer function matches, approximately, the magnitude specified in the equations shown next to the CTLE component.

  1. Open on the Analysis folder and run the LinearFrequency analysis. If needed, use Force Analysis to run the LNA.
  2. When the LNA has completed, the report in the schematic is updated. The report shows the magnitude of the CTLE component's transfer function and the magnitude specified in the equations, on the same plot. Note that the quantity being compared is the voltage gain.

HDMI Filter Demo Project.

HDMI Reference

[1] Eakhwan Song, Jeonghyeon Cho, Joungho Kim, and Don Gun Kam, "Causality Enforcement in Transient Simulation of HDMI Interconnects with Magnitude Equalization." IEEE International Symposium on Electromagnetic Compatibility, 2007.