The PS8407A is a low power HDMI™ repeater / retimer that removes jitter and fully supports HDMI 1.4b by supporting up to 300MHz TMDS™ clock rate. The device integrates a jitter tolerant TMDS receiver and a jitter cleaning TMDS transmitter for HDMI repeater applications. It removes both the data and clock jitter and the timing skews from the TMDS input to deliver a compliant and very low jitter HDMI output.

The PS8407A is ideal for Source, Sink and repeater device applications where jitter attenuation is needed. Such requirement might exist in a Source to remove Tx jitter and/or induced media (transmission path) jitter in order to meet HDMI output jitter requirements, especially at higher TMDS clock rates. It can also be used within a switch or Sink as a repeater function to improve signal integrity. Signal integrity can be further optimized through the use of the PS8407A’s programmable input equalization and output pre-emphasis controls.

The PS8407A also includes the VESA® Dual-Mode DisplayPort™ Type 2 cable adaptor DDC registers.  This enables the GPU to change devices settings and identify capability, using standard Dual-Mode DisplayPort Type 2 adaptor drivers.  The PS8407A is not designed for Type 2 cable adaptors since it does not include the required I2C-over-AUX transaction support.  For Type 2 cable adaptor applications refer to the PS8402A.

The PS8407A can accept either an AC or DC coupled input signal.

Key Features

  • Clock and Data Jitter Cleaning retimer – 12dB Jitter Attenuation performance for out-of-band HDMI clock jitter
  • Very low power consumption
  • Includes Dual-Mode DisplayPort Type 2 cable adaptor registers (DDC only, no I2C-over-AUX transaction support)
  • CrystalFree technology – no external crystal or reference clock is needed
  • Compliant to HDMI 1.4b specification up to 3.0Gbps (300MHz TMDS Clock)
  • Supports 4K x 2K and 1080p Stereo 3D HDMI formats which require 2.97Gbps (297MHz TMDS clock) operation
  • AC input coupling capable for level shifting applications
  • DC input coupling capable for repeater applications
  • Programmable receiver equalization
  • Programmable TMDS output pre-emphasis and EMI reduction
  • Automatic inter-pair and intra-pair de-skewing
  • Automatic power down management
  • Automatic output squelch circuit for fail-safe operation and power management
  • Flexible pin and I2C control mode options
  • Requires 3.3V and 1.2V, 1.35V, or 1.5V power supplies
  • 5x5mm 40-pin TQFN package
  • Operating temperature range availability: 0° to 70°C (commercial), -40° to 85°C (industrial)
  • ESD: HBM 8 kV

Applications

  • PC mother board or graphics card
  • Cable extension with active repeater
  • DVD Players or Set-top boxes
  • Game console
  • AV receivers

Pin Compatibility

  • PS8401A – HDMI Jitter Cleaning Repeater (uses 3.3V and 1.5V power supplies, no Type 2 adaptor register)
  • PS8201A – TMDS Level Translator (without jitter cleaning function)