CH7530A - DP++ to HDMI/DVI Level Shifter

Chrontel’s CH7530A is a low-cost, low-power semiconductor device that translates the DisplayPort dual mode signal to HDMI/DVI signal. This innovative device, which integrates programmable equalizer, high speed TMDS level shifter and IIC to AUX translator, is specially designed to target the DP++ to HDMI/DVI adaptor device, docking station and PC market segments.


The CH7530A is compliant with the DisplayPort dual mode standard specification version 1.1. With sophisticated equalizer and high-speed TMDS level shifter integrated, the device’s TMDS signal output is compliant with HDMI specification version 1.4b and DVI specification version 1.0, and supports video resolution up to 4Kx2K@30Hz or 1920x1080@120Hz for 3D applications.


The CH7530A also integrates the HDMI identifier, IIC over AUX translator and the related DDC control registers, which enables the programmable HDMI or DVI output and supports both DDC and AUX signaling on the upstream DisplayPort connector. With step-up regulator integrated, CH7530A supports 5V power supply output for HDMI/DVI configuration.


  • Compliant with DisplayPort Dual mode Specification version 1.1
  • HDMI output is compliant with HDMI specification version 1.4b and DVI specification version 1.0
  • HDMI output supports up to 300 MHz TMDS clock for video transport with resolution up to 4Kx2K@30Hz or 1920x1080@120Hz
  • IIC-over-AUX transaction supported
  • DDC buffer and related control register integrated HDMI Identifier supported
  • Single 3.3V power supply
  • 5V HDMI power supply output supported with over 50mA current output capability
  • Programmable equalizer
  • Programmable Pre-Emphasis on output driver supported
  • CEC isolation switch supported
  • Low power architecture
  • Anti-Back Drive design on sink-side pins
  • RoHS compliant and Halogen free package
  • Crystal free
  • Offered in 40-Pin QFN Package (5 x 5 mm)


Input Interface DP++
Output Interface HDMI, DVI
Audio Interface No
Other features Level Shifter
Package Type QFN40
Demo Video N/A






Ordering Information:

Part Number Package Type Operating Temperature Range Minimum Order Quantity
CH7530A-BF 40 QFN, Lead-free Commercial : 0 to 70°C 490/Tray



Application Notes:

  • Refer to the AN-B037 for industrial products in detail
  • PCB Layout and Design Guide for CH7530 AN-B040 rev0.2