Embedded DisplayPort™ to LVDS Converter

1 Lane eDP input, Single Link LVDS Output

The PS8612 is an Embedded DisplayPort™ to LVDS converter designed for PC’s that utilize a GPU with an Embedded DisplayPort (eDP™) output and a display panel that accepts an LVDS input.

KEY FEATURES

  • Enables the use of LVDS display panels with DisplayPort™ or eDP™ video Source devices
  • Supports up to 1680×1050@60Hz at 18-bit color depth or 1440×900@60Hz at 24 bit color depth
  • No external crystal or timing reference needed with Parade’s CrystalFree™ technology
  • Single 3.3V or 2.5V supply with low power consumption, less than 200mW in typical applications
  • Firmware-less operation, supports hardware pin configuration or initial code configuration
  • Optional I2C slave interface for chip control
  • ESD: HBM 8kV at connector pins
  • 0°C to 70°C Operating Temperature Range
  • 48-pin Halogen free QFN RoHS packag

DisplayPort Input

  • Compliant to VESA® DisplayPort™ Specification 1.1a
  • Compliant to VESA Embedded DisplayPort (eDP™) Specification 1.2 with AUX enabled backlight control
  • Supports 1-lane main link configuration
  • Link rates of 1.62 Gbps and 2.7Gbps
  • Supports full link training, fast link training, and no link training
  • Supports all eDP display authentication and GPU specific power management protocols

LVDS Interface

  • Single link LVDS output, clock speed up to 135MHz
  • LVDS spread spectrum clocking of +/-0.5% and +/-1%
  • Supports LCD panel power sequence control

APPLICATIONS

  • Portable PC systems with LVDS display panel
  • All-In-One PC systems

The PS8612 will appear as a DP or eDP Sink device to the video Source, and will serve as an LVDS Source device to the LVDS display panel. The device is a fully integrated solution requiring no external CPU, memory, clock reference or voltage regulator. The PS8612 can be configured to read EDID from the display DDC channel, or from an option external ROM attached to the PS8612 (I2C master provided). The external ROM can also include configuration code to customize device operation and interface timing. The PS8612 provides display panel power-up sequencing and backlight control including PWM generation. Backlight characteristics can be controlled by the video Source over the DP AUX channel using the eDP v1.2 DPCD control registers. Alternately, the video Source can provide the backlight control signals to the PS8612 which will gate them for panel power up sequencing, or the Source can bypass the device and control the panel backlight directly.