SN75DP128RTQT

Specialized Overview

The SN75DP128RTQT is a DisplayPort 1.2 compliant 1:2 switch/re-driver integrated circuit manufactured by Texas Instruments. It supports high-speed data transmission up to 8.1 Gbps per lane across four lanes, enabling signal distribution from one source to two displays. The device operates within a supply voltage range of 4.5 V to 5.25 V and features an I²C interface for configuration control. Packaged in a 56-pin QFN (RTQ) format, it is designed for surface-mount installation with a maximum operating temperature of +85°C.

Specialized Feature Summary

• Supports DisplayPort 1.2 standard with 1:2 signal switching capability
• Integrates re-driving functionality to maintain signal integrity over extended traces
• Configurable via I²C interface for flexible system integration

Specialized Applications

• Display systems requiring single-source dual-display output
• Monitor designs utilizing DisplayPort interfaces
• Television applications with DisplayPort input capabilities

Specialized Procurement Notes

Verify component status as the SN75DP128RTQT is classified as Not For New Designs or obsolete. Confirm availability through authorized distributors for existing production runs. Ensure compatibility with replacement parts such as the SN75DP128ARTQT if sourcing new inventory. Validate package type and pinout alignment during procurement to prevent integration errors.

Specialized Selection Notes

Select this component for applications requiring DisplayPort 1.2 compliance with 1:2 switching. Consider the 56-pin QFN package for space-constrained designs. Verify that the system power supply meets the 4.5 V to 5.25 V requirement. Evaluate the need for I²C control lines in the design architecture. Assess signal integrity requirements to determine if integrated re-driving is necessary for the trace lengths involved.

Specialized Part Context

Part of the SN75DP1xx series of display interface ICs from Texas Instruments. Designed specifically for DisplayPort applications, offering switching and re-driving functions. Complements other components like the SN75DP130 driver and SN75DP126 switch in complex display architectures.

Specialized Replacement Considerations

The SN75DP128ARTQT is listed as a similar available substitute. Verify pinout and electrical specifications match before substitution. Check for any functional differences in I²C addressing or power management between the RTQT and ARTQT variants.