IT66311 is a single-in, single-out HDMI 2.0 retiming buffer that supports a signaling rate of up to 6.0Gbps. It is compliant to the latest HDMI 2.0a specification and backward compatible to HDMI1.4 specification. With 6.0Gbps capability, IT66311 can support ultra-high resolution content stream, such as 4Kx2K @ 60Hz format. At extremely high data rate like this, signal quality drops significantly with extended board trace or cable length, making an additional retiming buffer necessary in many systems.
The IT66311 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 terminations and current levels are both detachable and programmable.
Active DDC buffer is employed in IT66311 to completely isolate downstream DDC loading from upstream source, while communication on the DDC bus not affected, including backward Read Request feature defined in HDMI2.0. Also, a Dual-Mode Display port cable adaptor register file is embedded in IT66311 to facilitate system design regarding output format.
With embedded MCU and Flash, IT66311 is easy to be programmed thru the ISP interface, and MCU control the IT66311 via I2C serial interface, PCSCL/PCSDA automatically, it can reduce customer development and programming efforts, and need no external Flash and MCU, can save the BOM cost and board size.