DisplayPort™ 2:1 Multiplexer with Jitter Cleaning, DisplayPort v1.4 and Dual-mode compatible

The PS8461 is an integrated DisplayPort 2:1 multiplexer that is compatible with DisplayPort 1.4 and dual-mode DisplayPort signaling.  An internal retimer circuit is used for jitter cleaning both native DisplayPort signaling and the TMDS signaling enabled by Dual-mode operation.  DisplayPort link rates up to 8.1Gbps are supported, and TMDS data rates up to 6Gbps are supported enabling the support of HDMI™ 2.0b operation up to 40K@60Hz.  When used for native DisplayPort signaling, through the use transparent repeater operation the PS8461 main link output swing and pre-emphasis levels will response to link training between the DisplayPort video Source and downstream Sink.  When used with a dual-mode upstream Source, the PS8461 supports the Dual-mode AC coupled TMDS signaling that enables the support of DVI or HDMI Sink devices through the use of a downstream level shifting device such as a Dual-mode DP to HDMI adapter.

Features

  • Supports 2:1 multiplexing for Dual-mode DisplayPort signaling
  • Compliant to VESA® DisplayPort Standard version 1.4 including support for 1.62, 2.7, 5.4 and 8.1-Gbps link rates, up to four lanes
  • Compatible with dual-mode DisplayPort Source operation with a TMDS data rates up to 6Gbps
  • Jitter cleaning of both DisplayPort and TMDS signaling
  • Superior intra-pair and inter-pair de-skewing
  • Crystal Free operation
  • Programmable equalization adjustment to compensate for PCB, cable, and connector losses
  • Field proven transparent repeater function provides link training with the downstream DisplayPort device using AUX interception
  • Built-in AUX Channel and DDC combiner for upstream dual-mode Source device
  • Supports Source initiated power management through AUX channel
  • Automatic power down management
  • Device pin control and local I2C bus control options
  • 3.3V / 1.2V dual supply operation
  • 5x10mm 66-pin QFN RoHS compliant and halogen free package

Applications

  • Notebook and desktop PC motherboards implementing switchable graphics
  • Notebook docking stations
  • Monitors