SN75DP126

www.ti.com

SLLSEA9A – FEBRUARY 2012 – REVISED MARCH 2012

DisplayPort™ 1:2 Re-Driver Switch with TMDS Translator

Check for Samples: SN75DP126

1

FEATURES

2

•

One Dual-Mode DisplayPort™ (DP++) Input;

•

Temperature Range: 0°C to 85°C

Switchable to One DP++ Output or One TMDS

•

56-Pin 5 mm x 11 mm QFN Package

Output Compatible with HDMI 1.4b and DVI

•

Supports DP v1.1a and DP v1.2 Signaling

APPLICATIONS

Including HBR2 Data Rates to 5.4 Gbps

•

Notebook PC

•

Supports HDMI 1.4b with TMDS Clock

•

Desktop PC

Frequencies up to 340 MHz with 10 m Cable

•

PC Docking Station

•

Glue-less interface to AMD, Intel, and NVIDIA

•

PC Standalone Video Card

Graphics Processors

•

Auto-Configuration Through Link Training for

DisplayPort Connection

•

Integrated DDC-Accessible DP-HDMI Adaptor

ID for HDMI/DVI Sink Recognition

•

Output Signal Conditioning with Tunable

Voltage Swing and Pre-Emphasis Gain for

both DisplayPort and TMDS Outputs

•

Highly-Configurable Input-Variable Equalizer

•

Two Device Options Including a Dual Power-

Supply Configuration for Lowest Power

•

2-kV ESD HBM Protection

DESCRIPTION

The SN75DP126 switches one Dual-Mode DisplayPort (DP++) input to one Dual-Mode DisplayPort (DP++) sink

output or one HDMI/DVI sink output. The HDMI/DVI output has a built-in level translator compliant with DVI 1.0

and HDMI 1.4b standard TMDS signaling, and is specified up to a maximum data rate of 3.4 Gbps, supporting

resolutions greater than 1920 X 1440 and HDTV deep color at 1080p. An integrated DP-HDMI Adaptor ID buffer

can be accessed when the HDMI/DVI sink is selected to indicate support for HDMI signaling.

The device compensates for PCB-related frequency loss and switching-related loss to provide the optimum

electrical performance from source to sink. The DP++ Main Link signal inputs feature-configurable equalizers

with selectable boost settings.

primary levels of pre-emphasis are available as well as a secondary level of boost adjustment, programmed

adjust output signaling levels and input equalizers based on DP Link Training commands.

At the SN75DP126 HDMI/DVI output, the differential output voltage swing and pre-emphasis levels are

interface, the VSadj terminal, and the I2C_CTL_EN terminal. The HDMI/DVI sink TMDS output slew rate is

controlled by the SRC control input.

1

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.

2

DisplayPort is a trademark of VESA Standards Association.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, 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.