LCD Monitor Controller with DisplayPort and HDMI/DVI Interfaces

The DP703 is a highly integrated LCD panel controller IC for main-stream LCD monitors and All-In-One PCs. The integrated digital video receivers, video scaler, built-in analog audio multiplexer and audio DAC can offer significant system integration and reduction of BOM cost.

DP703 Block Diagram 20131017

Key Features

HDMI/DVI Input Port

  • HDMI 1.3a compliant receiver supports up to 2.25Gbps.
  • DVI 1.0 receiver supports up to 1.65Gbps
  • Deep color support for 30-bpp and 36-bpp
  • Supports RGB, YCbCr444 and YCbCr422 video modes
  • HDMI audio: 8 channels LPCM and compressed audio format

DisplayPort Input Port

  • 4-lane DisplayPort 1.1a compliant receiver supports both 2.7Gbps and 1.62Gbps
  • Color depth support for 18-bpp, 24-bpp, 30-bpp and 36-bpp
  • Supports RGB, YCbCr444 and YCbCr422 format
  • Supports non-interlace or interlace scan modes
  • DisplayPort audio: 8 channels LPCM and compressed audio format

Content Protection

  • Supports HDCP 1.3 for DisplayPort interface
  • Supports HDCP 1.0, 1.1, 1.2 and 1.3 for DVI/HDMI interface

Video Processing

  • Supports video scaling & 2D de-interlacing
  • Supports sRGB color gamut
  • Gain adjustment on full white
  • Color temperatures adjustment
  • Supports FRC and dithering
  • Programmable gamma table, 10-bit for each color channel

LVDS Panel Interface

  • Supports single or dual link LVDS output, clock up to 135MHz
  • Supports up to 1920 x 1200 at 75Hz (reduced blanking)
  • LCD power sequence control
  • Light sensor input and on-chip PWM (Pulse-Width-Modulation) output for backlight control
  • Supports PWM (Pulse-Width-Modulation) pass-through function
  • Programmable up to 2% spread-spectrum clocking on LVDS interface

Audio Support

  • Audio sample sizes of 16-bit, 20-bit and 24-bit
  • Audio sample rates of 32KHz, 44.1KHz, 48KHz 88.2KHz, 96KHz, 176.4KHz and 192KHz
  • Dual Audio DACs to support 2-channels of analog audio output
  • 2-channel of analog audio input for the support of DVI
  • Optional SPDIF output and 2-channel I2S output
  • Supports PWM output for audio volume control

On-chip OSD Support

  • Embedded 24K bytes SRAM for OSD fonts and display
  • Rotation of 90, 180, and 270 degrees
  • Multiple OSD windows
  • 3D window type
  • Supports 1×8 ~ 16×32 proportional font

Control Interface

  • On-chip microprocessor with SPI ROM interface for firmware storage
  • Two 8-bit LBADCs


  • 14x14mm 128-pin TQFP RoHS compliant and halogen free package
  • 1.2V Core & 3.3V I/O Power Supplies
  • 0°C to 70°C Operating Temperature Range


  • LCD monitor
  • All-in-One PC