The CH7039B has four input and four output ports to supports multiple display standards. Some ports are multiplexed with different signal types to reduce pin count. For example, the 24-bit wide digital port can be programmed to receive LVDS or TTL signals and supports various formats like RGB, BT1120, BT656, etc.while the 8-bit port can accept HDMI or BT656 inputs.The 2 Lane DP / eDP port stands alone because of its high data transfer rate. Through a 4x2 input switch matrix, the device can be configured to simultaneously accept two separated video formats with independent display timing. The input combination can be mixed among the TTL/BT1120/LVDS, the DP/eDP and the HDMI/BT656 input in either RGB format (RGB-565, RGB-666 or RGB-888 and etc.) or YCrCb format (ITU-R 601/656 and BT1120). A 2x4 output switch matrix can be programmed to drive the various output ports simultaneously with two kinds of independent timing.
The CH7039B supports 3D data structures defined by DP and HDMI standards. The device can translate and repack3D data when DP signals are converted to HDMI and viceversa. 3D data can also be displayed as R/L frame via itsLVDS output.
The CH7039B’s DisplayPort receiver and transmitter are designed to comply with DisplayPort Specification 1.2 and Embedded DisplayPort (eDP) Specification version 1.3. It provides support for one or two Main Link lanes with data rate running at 1.62Gb/s or 2.7Gb/s. To further optimize the display quality and power dissipation, this device is equipped with seamless display refresh rate switching and progressive to interlace timing switching capabilities.
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