Video Link / HDMI

IT6663 : 1-to-2 HDMI2.0/MHL Dual in Active Splitter with EDID RAM

The IT6663 is a one-to-two HDMI2/MHL dual-in, HDMI2 out active splitter that supports a signaling rate up to 6.0Gbps per channel. It is compatible with the latest HDMI 2.0a, MHL 2.2, and HDCP2.2 specifications. The 6.0Gbps bandwidth capability of IT6663 allows it to support content stream such as the popular ultra-high definition 4Kx2K 60Hz format, 3D video with 4Kx2K@30Hz, and so on. SCDC data structure is contained in both TX and RX side of IT6663 such that HDMI2.0 content could be properly received and transmitted to downstream side.

 To facilitate system design, IT6663 integrates on-chip CSC conversion (including YCbCr 420/422/444 up or down and RGB/YCbCr conversion), and 4:1 down-sampling function, such that proper video stream could be output to each of the connected display device according to its EDID and cable length.

 The installed HDCP2.2 engines and keys on both receiving and transmitting side make IT6663 possible to act as an HDCP2.2/1.x Repeater or an HDCP2.2 to 1.x/HDCP1.x to 2.2 converter, eliminating HDCP compatibility issue. (Note: the HDCP2.2 to 1.x conversion is restricted for closed system application.)

 To achieve a friendly remote control environment, the IT6663 provides a complete solution of HDMI CEC function and MHL RCP function as well. With IT6663’s embedded CEC/RCP hardware, developers could use high-level software API to implement all the necessary remote control commands easily.

 The IT6663 equalizes incoming TMDS signal to optimal and outputs retimed data to downstream sinks. The highly acclaimed equalization technology of ITE TECH. INC. provides for support of long or low-quality HDMI cables at even the highest speeds. Input terminations of the TMDS inputs and output current levels are both programmable.

 An EDID RAM is embedded in IT6663 to save the cost of the external EDID ROMs. The process of downloading the EDID data into the RAM is simplified by firmware programming.

 The IT6663 operates in software mode that allows the system to control it via a two-line serial interface, PCSCL/PCSDA. Two serial programming addresses can be selected by PCADR.

 

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