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FEATURES

APPLICATIONS

DESCRIPTION

TYPICAL APPLICATION

PC

DVD Player

STB

Digital TV

or

Game

Machine

TMDS

341A

TMDS341A

SLLS702 – MAY 2006

3-TO-1 DVI/HDMI SWITCH

•

Intra-Pair Skew < 50 ps

•

Differential Interface Compatible with

•

8-dB Receiver Equalization to Compensate

Transition Minimized Differential Signaling

for 5-m DVI Cable Losses

(TMDS) Electrical Specification

•

High Impedance Outputs When Disabled

•

Allows AC-Coupled Input

•

HBM ESD Protection Exceeds 3 kV

•

Designed for Signaling Rates up to 1.65 Gbps

•

3.3-V Supply Operation

in Support of 480 I/P, 720 I/P, 1080 I/P or

•

80-Pin TQFP Package

UXGA Resolutions

•

ROHS Compatible and 260

°C Reflow Rated

•

Each Port Supports HDMI or DVI Inputs

•

Isolated Digital Display Control (DDC) Bus for

Unused Ports

•

Switching From Three Digital-Video (DVI) or

•

5-V Tolerance to all DDC and HPD_SINK

Digital-Audio Visual (HDMI) Sources

Inputs

•

Digital TV

•

Integrated Receiver Termination

•

Digital Projector

•

Audio Video Receiver

•

Inter-Pair Output Skew < 100 ps

The TMDS341A is a 3-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch that

allows up to 3 DVI or HDMI ports to be switched to a single display terminal. Four TMDS channels, one hot plug

Gbps.

The active source is selected by configuring source selectors, S1, S2, and S3. The selected TMDS inputs from

Termination resistors (50-

Ω), pulled up to V

are not required. A precision resistor is connected externally from the VSADJ pin to ground for setting the

differential output voltage to be compliant with the TMDS standard. When the output is connected to a standard

TMDS termination and OE is high, the output is high impedance.

The TMDS341A provides fixed 8-dB input equalization and selectable 3-dB output de-emphasis to optimize

system performance through 5-meter or longer DVI compliant cables. The device is characterized for operation

from 0

°C to 70°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.