Host-Side USB Type-C® Port Configuration Switch for USB / DisplayPort Alt Mode, with Integrated Redriver and Port Controller with TCPC Interface

The PS8705 addresses requirements for the implementation of a USB Type-C connector on a USB host device that supports the VESA® DisplayPort Alt Mode Standard.  It includes the configuration switching for all of the USB Type-C connection signals and a TCPC (Type-C Port Controller) Interface that enables the management of the USB Type-C interface functions.


  • Compliant to VESA DisplayPort Alt Mode on USB Type-C standard 1.0
  • Compliant to USB Power Delivery 3.0
  • Compliant to USB Type-C Port Controller Interface Specification 1.2
  • Flexible USB Type-C switching support for USB 3.1 Gen 1 5Gbps and DisplayPort 1.4 Alternative Mode up to HBR3 8.1Gbps
  • Active switch fabric for USB/DP and flip control
  • Built-in BMC PHY and protocol
  • Configurable DFP/UFP/DRP support
  • Built-in CC logic and automatic power management
  • USB 3.1 Gen 1 5Gbps Redriving
  • DisplayPort 1.4 HBR3 8.1Gbps Redriving
  • CrystalFree – no external crystal or clock needed
  • System transparent operation (redriver-like operation)
  • High input jitter tolerance and low output jitter
  • UniEye™ Equalizer to compensate channel loss
  • Very low latency, < 1ns total propagation delay
  • Integrated VCONN power switch
  • GPIOs for VBUS switch and other system control
  • I2C slave with ALERT# (TCPCI)
  • DCI support
  • Low active power consumption
  • Ultra-low standby power consumption
  • 5×4.5mm 52-pin QFN Halogen free RoHS Packages
  • 3V and 1.2V power supply
  • ESD: Human Body Mode 6kV at connector pins


  • Smartphones and Tablets
  • Notebooks, PCs and USB Type-C host applications