The PS8419 is an HDMI™ retimer that removes jitter and fully supports HDMI 2.1 by supporting up to 12Gbps FRL data rates, as well as TMDS™ data rates up to 6Gbps. The device integrates a jitter tolerant FRL/TMDS receiver and a jitter-cleaning retiming transmitter for HDMI repeater applications. It removes both the data and clock jitter and the timing skew between the data and clock channels to deliver a compliant and very low jitter HDMI output.

The PS8419 is ideal for Source, Sink and repeater device applications where the removal of jitter from the FRL signals, or alternately the TMDS clock and data signals, is needed as well as removal of lane skew. Such requirement might exist in an HDMI Source device to remove Tx jitter and/or induced media (transmission path) jitter in order to meet HDMI output jitter requirements, especially at higher transport clock rates. It can also be used within an HDMI repeater or Sink devices, as a repeater near the input connector, to improve receiver performance margin. Signal integrity can be further optimized through the use of the PS8419’s programmable input equalization and output pre-emphasis controls.

The PS8419 can also be used as a Dual-Mode DisplayPort™ level shifter, either on a motherboard or graphics card, or within a Type 2 Dual-Mode DisplayPort (DP++) cable adapter. The device includes the VESA® Dual-Mode DisplayPort Type 2 cable adapter DDC registers, and includes an AUX to I2C bridge, allowing DisplayPort AUX to be use on the Source inputs side.   The Type 2 registers enable the GPU to change devices settings and identify capability, using standard Dual-Mode DisplayPort Type 2 adapter drivers.

Key Features

  • Compliant to HDMI 2.1 specification FRL up to 12Gbps
  • Compliant to HDMI 2.1 and HDMI 2.0 specification TMDS up to 6Gbps
  • Internal HDMI retimer with low jitter transmitter provides jitter-cleaning of received signal
  • Superior Intra-pair and Inter-pair data de-skewing
  • AC coupling capable for level shifting applications
  • DC coupling capable for direct HDMI repeating
  • SCDC interception for HDMI repeater optimization
  • Built-in DDC active buffering of sideband signals
  • Crystal-free operation – no external reference clock required
  • Automatic FRL Link Training – no system level support needed
  • Programmable receiver equalization to compensate for PCB, cable and connector losses
  • Link training based automatic equalization adjustment in FRL mode
  • Automatic power down management
  • Low Power consumption
  • Pin control or optional local I2C control
  • 3.3V and 1.1V power supplies
  • 4.5×6.5mm 46-pin QFN RoHS compliant and halogen-free package

Applications

  • Notebook and personal computer motherboards
  • TVs, monitors, and projectors
  • Docking stations
  • Set-top boxes
  • AV Receivers