SN75DP122RTQR

Specialized Overview

The SN75DP122RTQR is a DisplayPort to HDMI signal converter manufactured by Texas Instruments. It integrates a DisplayPort 1:2 switch with an embedded TMDS translator, enabling direct conversion from DisplayPort sources to HDMI displays without external logic. The device operates on a single 3.3 V supply and supports data rates up to 3.4 Gbps per lane. It is housed in a 56-pin WQFN package (8x8 mm) rated for commercial temperatures between 0°C and +85°C. The component includes I2C control interface for configuration and features low power consumption suitable for portable applications.

Specialized Feature Summary

• Integrates DisplayPort 1:2 switching and TMDS translation in a single chip
• Supports dual-link DVI and HDMI 1.4a resolutions up to 1920x1200
• Includes built-in retimer functionality for signal integrity enhancement

Specialized Applications

• Portable computers converting internal DisplayPort to external HDMI ports
• Docking stations requiring DisplayPort to HDMI connectivity
• All-in-one PCs and monitors with mixed input requirements

Specialized Procurement Notes

Verify the specific suffix RTQR against the manufacturer's current datasheet to confirm pinout and packaging details. Ensure the source document explicitly identifies this part as a DisplayPort switch with integrated translator. Cross-reference the 56-WQFN package dimensions with mechanical drawings before PCB layout finalization.

Specialized Selection Notes

Select this component when a design requires both signal switching and protocol translation from DisplayPort to HDMI. It eliminates the need for separate switch and translator ICs, reducing board space. Verify that the system power budget accommodates the 3.3 V requirement and that I2C lines are available for device configuration.

Specialized Part Context

This part belongs to the SN75DP122 series of display interface controllers. It is distinct from the SN75DP126, which lacks the integrated translator, and the SN75DP130, which functions as a driver. The RTQR suffix indicates a specific tape-and-reel packaging variant within the standard WQFN-56 footprint family.

Specialized Replacement Considerations

The SN75DP122ARTQR is a verified equivalent with identical electrical characteristics and pinout. Other SN75DP122 variants may differ in packaging or temperature rating; verify datasheet specifications before substitution.