HD3SS215_15 Datasheet, PDF (14/31 Pages) Texas Instruments – HD3SS215 6.0 Gbps HDMI DisplayPort 2:1/1:2 Differential Switch

HD3SS215, HD3SS215I
SLAS971C – MAY 2014 – REVISED AUGUST 2015
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9 Applications and Implementation
9.1 Application Information
The HD3SS215 can be used in a variety of applications. This section shows the typical applications for
DisplayPort , DP++, and HDMI. The example diagrams illustrate using the HD3SS215 in a two source to one
sink application and a one source to two sinks application. All schematics are using the ZQE pin-out.
9.2 Typical Applications
9.2.1 DisplayPort and Dual Mode Adapter with Two Sources
The application schematic below shows the HD3SS215 in the 2:1 configuration for DisplayPort switching. The
HD3SS215 receives inputs from DP Source A and DP Source B. The control pins of the device can be set to
select Source A/B inputs and transfer them to port C through the Dx_SEL control pin. The schematic also shows
the CONFIG1 and AUX_SEL settings to configure the HD3SS215 to work with DP++ Type 2 and Type1
adapters. For this specific schematic, the AC capacitors needed on the MainLink signal lines are shown on the
Sink side of the HD3SS215. This is done to decrease the BOM. If desired the AC capacitors maybe placed in the
signal path on the Source A/B side of HD3SS215. Additional diagrams are provided to show the configuration of
the AUX channel for 2:1 and 1:2 DisplayPort only applications.
Figure 3. HD3SS215 Application Diagram for DisplayPort or Dual Mode Adapter Configuration
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