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Jitter Cleaning 3.0 Gb/s HDMI Repeater

The PS8401 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 PS8401 is ideal for Source device applications where jitter attenuation is needed. Such requirement might exist to remove Source 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 repeater function to maintain or improve signal integrity. Signal integrity can be further optimized through the use of the PS8401’s programmable input equalization and output pre-emphasis controls.

The PS8401 can accept either an AC or DC coupled input signal.

 

 

 

 

 

 

Key Features
  • Clock and Data Jitter Cleaning – 12dB Jitter Attenuation performance for out-of-band HDMI clock jitter
  • CrystalFree technology – no crystal or external reference clock is needed
  • Compliant to HDMI 1.4a 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 options
  • Automatic inter-pair and intra-pair de-skewing
  • Both Active buffering and Passive switch options for DDC Side-band Signals
  • Automatic power down management
  • Automatic output squelch circuit for fail-safe operation and power management
  • Low power consumption
  • Flexible pin and I2C control mode options
  • 3.3V and 1.5V power supplies for PS8401A
  • Single 3.3 V power supply for PS8401B
  • 5x5mm 40-pin TQFN package
  • 0° to 70°C operating temperature range
  • ESD: HBM 5 kV
Applications
  • PC mother board or graphics card
  • Dual-mode DisplayPort to HDMI/DVI Cable Adapters
  • Cable extension with active repeater
  • DVD Players or Set-top boxes
  • Game console
  • AV receivers

 

 

 

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