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Overview

Features and Benefits

  • One HDMI Output Connector
  • Two DisplayPort Input Connectors
  • Mini-USB Power Supply
  • Application Circuit with TMDS and DDC Sections
  • Characterization Circuit with SMA Inputs/Outputs and Output Bias-Ts
  • Calibration Traces (50Ω Load Trace)
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX14886 evaluation kit (EV kit) provides a proven design to evaluate the MAX14886. This high-speed, low-skew, active redriver multiplexer is ideal for switching between outputs of dual-graphics systems and signal conditioning to meet High-Definition Multimedia Interface (HDMI™) v1.4 compliance up to 2.25Gbps at an external HDMI output connector. The EV kit contains three sections: an application circuit, characterization circuit, and calibration traces.

The application circuit is designed to demonstrate the device in multiplexing and redriving TMDS® formatted dual-mode DisplayPort™ signals into an HDMI output connector. This section of the EV kit operates from a +5V USB supply that is regulated by an on-board +3.3V LDO regulator, which powers the U1 device and companioned DDC logic (U3). All signal traces in the application circuit are 100Ω differential controlled-impedance traces.

The characterization circuit is provided for eye diagram evaluation using SMA connectors, controlled-impedance traces, and output bias-Ts to interface with standard 50Ω test equipment. This section is powered by an external +3.3V power supply.

The calibration traces match the length and shape of the input traces in the characterization circuit (U4) for further high-frequency analysis.

Applications

  • Dual Graphics Notebook Computers
  • Dual Mode DisplayPort to HDMI External Switches or Adapters

Documentation & Resources

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