TMDS261PAGR

Video Processing Overview

The TMDS261PAGR is a two-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch manufactured by Texas Instruments. It supports signaling rates up to 3 Gbps, enabling 1080p resolution with 16-bit color depth. The device operates from a single 3.3-V power supply and features an adaptive equalizer to compensate for cable loss up to 20 dB at 3 Gbps. It includes a TMDS clock-detect circuit for automatic power management and a DDC repeater function. The component is housed in a 64-pin TQFP package.

Video Processing Feature Summary

• Adaptive equalization automatically compensates for intersymbol interference loss in HDMI/DVI cables.
• Integrated TMDS clock-detect circuitry provides automatic power management by disconnecting terminations when no valid clock is present.
• DDC I2C buffer isolates source-side capacitance from the sink side to assist with system-level compliance.
• Robust TMDS receive stage accommodates non-compliant input common-mode voltage levels.

Video Processing Applications

• High-definition digital televisions
• LCD displays
• Plasma displays
• DLP projectors

Video Processing Procurement Notes

Verify that the ordering suffix 'AGR' corresponds to the 64-pin TQFP reel packaging as specified in the official documentation. Confirm the operating temperature range of 0°C to 70°C aligns with your system requirements. Ensure proper handling procedures are followed due to limited built-in ESD protection on MOS gates.

Video Processing Selection Notes

Select this component for systems requiring a 2-to-1 switch between DVI or HDMI sources and a single display terminal. It is suitable for applications needing support for resolutions up to 1080p with deep color capabilities. Consider the GPIO or local I2C control interfaces based on the specific system architecture and pin availability.

Video Processing Part Context

The TMDS261 is part of Texas Instruments' portfolio of digital video interface switches designed for consumer electronics. It enables multiple source devices to connect to a single display, facilitating flexible system configurations in home entertainment setups. The device integrates necessary signal conditioning and control logic to maintain signal integrity across varying cable lengths.

Video Processing Replacement Considerations

The datasheet indicates the TMDS261 is pin-compatible with the TMDS251. Verify functional equivalence regarding specific feature sets and electrical characteristics before substitution.

Video Processing FAQ

How does the TMDS261 manage power consumption?

The device features a TMDS clock-detect circuit that automatically disconnects input data line terminations and places outputs in a high-impedance state if no valid TMDS clock is detected, thereby reducing power consumption.

What control interfaces are supported by the TMDS261?

The TMDS261 can be controlled via a local slave-only I2C interface or a GPIO interface, selected by the status of the I2C_SEL pin.