Computer/Notebook/DockingStation
GPU
SN75DP120
FullyBuffered
Solution
DisplayPort
Enabled
MonitororHDTV
DP++
DP++
SN75DP120
www.ti.com
SLLSE08 –OCTOBER 2009
DisplayPort 1:1 Dual-Mode Repeater
Check for Samples: SN75DP120
1
FEATURES
• Enhanced ESD: 11 kV HBM on All Pins
• DP Signal Repeater Supporting Dual-Mode • Enhanced Commercial Temperature Range:
DisplayPort DP1.1a (DP++) Signaling 0°C to 85°C
• Supports Data Rates up to 2.7Gbps • 36 Pin 6 × 6 QFN Package
• Participates in DP Link Training to set Output
APPLICATIONS
Voltage and Pre-Emphasis Levels
• Personal Computer Market
• Automatic Selectable Equalization for
– Desktop PC
Improved Signal Integrity
– Notebook PC
• Integrated HPD Inversion and Level
– PC Docking Station
Translation Required on Some Source
– PC Standalone Video Card
Platforms
DESCRIPTION
The SN75DP120 is a single port Dual-Mode DisplayPort (DP++) repeater that regenerates the DP high speed
digital link.
Four levels of differential output voltage swing (VOD) and four levels of pre-emphasis are supported in
accordance with the DisplayPort specification version 1.1a.The device monitors the AUX channel and
automatically adjusts the output signaling levels in response to link training commands. The SN75DP120 also
supports multiple selectable levels of equalization to provide improved signal integrity in cases where the input
link has a high level of loss. The equalization level will be automatically selected based on link training. The
equalization in the DP120 is optimized to compensate losses of up to 6dB for frequencies up to 1.35GHz. This
corresponds to approximately 18–24 inches of FR4 trace with 4–6mil width.
A built in level translator for the hot plug detect (HPD) line and level translator / inverter for the cable adapter
detect line (CAD) allow for a reduction of the overall circuitry needed for a DisplayPort source system.
When not in use, the SN75DP120 device supports an ultra low power shutdown mode. In this mode the main link
outputs are disabled and pulled to GND, and the device draws less then 40 µW of power.
The device is characterized for an extended operational temperature range from 0°C to 85°C.
TYPICAL APPLICATION
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, 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.
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