MAX9406ETJ+

Video Processing Overview

The MAX9406ETJ+ is a high-speed, low-skew quad differential input to current-mode logic translator designed for DisplayPort to HDMI signal conversion. It operates from a 3V to 3.6V core supply and supports typical data rates of 2Gbps with a maximum rate of 1.85Gbps. The device features an ultra-low propagation delay of 350ps and channel-to-channel skew under 20ps. It includes integrated bidirectional level shifters converting 5V single-ended logic to 3.3V for DDC and HPD lines. The component is housed in a 32-pin Thin QFN-EP package (5mm x 5mm) and functions within an extended temperature range of -40°C to +85°C.

Video Processing Feature Summary

• Provides high-speed signal conversion between DisplayPort and HDMI technologies using quad differential inputs and CML outputs.
• Integrates bidirectional level shifting capabilities to translate 5V single-ended logic to 3.3V for Display Data Channel and Hot-Plug Detection signals.
• Features ultra-low propagation delay and minimal channel-to-channel skew to maintain signal integrity at high data rates.
• Includes internal 50Ω input terminations and biasing to simplify circuit design and reduce external component requirements.

Video Processing Applications

• Level conversion for DisplayPort to HDMI interfaces
• Data and clock driver and buffer applications
• Backplane data and clock distribution systems

Video Processing Procurement Notes

Verify the specific ordering suffix ETJ+ corresponds to the 32-pin Thin QFN-EP package configuration. Confirm that the lead-free designation (+) aligns with environmental compliance requirements for the target assembly process. Ensure the source documentation explicitly lists this part number as available or discontinued before initiating procurement actions.

Video Processing Selection Notes

Select this component when interfacing DisplayPort sources with HDMI sinks requiring precise timing alignment. The integrated level shifters eliminate the need for separate voltage translation circuits for control lines. Verify that the PCB layout can accommodate the 32-pin Thin QFN package dimensions and thermal requirements for the exposed paddle connection.

Video Processing Part Context

This device belongs to the MAX9406 series of video interface translators manufactured by Analog Devices / Maxim Integrated. It serves as a specialized bridge for digital video standards, specifically targeting the conversion of DisplayPort signals to HDMI formats. The series includes variants with different pin counts and package styles to suit various motherboard and connector designs.

Video Processing Replacement Considerations

The MAX9406ETM+ is a confirmed substitute offering identical functionality but housed in a 48-pin Thin QFN-EP package (7mm x 7mm). Designers must verify pinout compatibility and board space constraints when considering this alternative, as the physical footprint differs significantly from the 32-pin version.

Video Processing FAQ

How does the MAX9406 handle Hot-Plug Detection signals?

The device translates the HPD 5V logic into 3.3V logic, allowing seamless communication between the source and sink devices regarding connection status.

What is the function of the OE pin on the MAX9406?

The Output Enable (OE) pin controls the power through the four high-speed signal paths. Driving it low enables all links, while driving it high disables them and disconnects internal biasing for low-power operation.

Does the MAX9406 include internal termination resistors?

Yes, the device features integrated 50Ω input terminations and biasing, which simplifies the external circuit design by reducing the need for discrete components.