SN75DP122 Datasheet, PDF (1/35 Pages) Texas Instruments – DisplayPort 1:2 Switch With Integrated TMDS Translator

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SN75DP122
SLLS892 – FEBRUARY 2008
DisplayPort 1:2 Switch With Integrated TMDS Translator
FEATURES
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• One Input Port to One of Two Output Ports
• Integrated TMDS Level Translator with
Receiver Equalization
• DP Port Supports Data Rates up to 2.7 Gbps
• DP Port Supports Dual-Mode DisplayPort
• DP Port Output Waveform Mimics Input
Waveform Characteristics
• TMDS Port Supports Data Rates up to 2.5
Gbps
• Integrated I²C Logic Block for DVI/HDMI
Connector Recognition
• Enhanced ESD:
– 12 kV on all High Speed Pins
– 8 kV on all Auxiliary and I²C Pins
• Enhanced Commercial Temperature Range:
0°C to 85°C
• 56 Pin 8 × 8 QFN Package
APPLICATIONS
• Personal Computer Market
– Desktop PC
– Notebook PC
– Docking Station
– Standalone Video Card
DESCRIPTION
The SN75DP122 is a one Dual-Mode DisplayPort input to one Dual-Mode DisplayPort output or one TMDS
output. The TMDS output has a built in level translator compliant with Digital Video Interface (DVI) 1.0 and High
Definition Multimedia Interface (HDMI) 1.3b. The DisplayPort output follows the input signal in a manner that
provides the highest level of signal integrity while supporting the EMI benefits of spread spectrum clocking.
Through the SN75DP122 data rates of up to 2.7 Gbps through each link for a total throughput of up to 10.8 Gbps
can be realized.
In addition to the switching of the DisplayPort high speed signal lines, the SN75DP122 also supports the
switching of the bidirectional auxiliary (AUX), Hot Plug Detect (HPD), and Cable Adapter Detect (CAD) channels.
The Auxiliary differential pair supports Dual-Mode DisplayPort operation through the DisplayPort port. Through
the TMDS port the auxiliary port is configured as an I²C port with an integrated I²C repeater.
The SN75DP122 is characterized for operation over ambient air temperature of 0°C to 85°C.
TYPICAL APPLICATION
DP++
GPU ^DP++ _SN75DP122
TMDS
Computer/Notebook/Docking Station
DisplayPort
Enabled
Monitor or HDTV
HDMI / DVI
Monitor or HDTV
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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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated