TMDS341PFC

Specialized Overview

The TMDS341PFC is a 3-to-1 DVI/HDMI switch manufactured by Texas Instruments in an 80-pin TQFP package. It supports signaling rates up to 1.65 Gbps and operates on a 3.3-V supply voltage (range: 3 V to 3.6 V). The device features integrated 50-Ω receiver termination, fixed 8-dB input equalization, and selectable 3-dB output de-emphasis. It includes four TMDS channels, one hot plug detector, and an I2C interface per port. Operating temperature range is 0°C to +70°C.

Specialized Feature Summary

• Supports switching between three digital-video or high-definition multimedia interface sources to a single display terminal
• Includes integrated receiver termination and fixed input equalization to compensate for cable losses
• Features isolated digital display control bus for unused ports with 5-V tolerance

Specialized Applications

• Digital TV
• DVD Player
• Set-top Box
• Game Machine

Specialized Procurement Notes

Verify the specific ordering suffix PFC corresponds to the 80-pin TQFP package configuration. Confirm RoHS compliance status and lead-free manufacturing details through official documentation before procurement.

Specialized Selection Notes

Select this component for designs requiring a 3-to-1 multiplexer for TMDS signals. Ensure the system operates within the 3.3-V supply range and requires support for signaling rates up to 1.65 Gbps.

Specialized Part Context

This part belongs to the TMDS341 series of digital video interface switches. It is designed specifically for applications needing to route multiple HDMI or DVI inputs to a single sink while maintaining signal integrity through built-in equalization.

Specialized Replacement Considerations

Check for the tape and reel variant TMDS341PFCR if automated assembly is required. Verify pinout compatibility if substituting with other 3-to-1 TMDS switches from different manufacturers.

Specialized FAQ

How is the differential output voltage swing set?

A precision resistor connected externally from the VSADJ pin to ground sets the differential output voltage to comply with the TMDS standard.

What happens to the DDC bus on unused ports?

For unused ports, the I2C interfaces are isolated, and the HPD pins are kept low to prevent interference with the active channel.