IT6861E数据手册ITE中文资料规格书

描述 Description

The IT6861E is a one port MHL/HDMI active Bridge that supports a signaling rate up to 3.0Gbps. The latest HDMI 1.4 and MHL 2.1 specifications are supported by IT6861E which can operate in both HDMI and MHL mode. With 3.0Gbps capability, the IT6861E can support the new 4Kx2K video format and 1080P@120Hz. It also enable the HDMI to display 3D video with 1080P/3D@60Hz format and enable the MHL to display HD video with 1080P@60Hz format.New cell phones with MHL transmitter can connect to IT6861E directly without external MHL to HDMI dongle device. The IT6861E operates in software mode that allows the system to control it via a two-line serial interface, PCSCL/PCSDA. The IT6861E offers two selectable serial programming addresses by PCADR.To achieve the friendly remote control environment, the IT6861E also provides a complete solution of HDMI CEC function and MHL RCP function. With IT6861E embedded CEC/RCP hardware, user can use high-level software API to easily implement all the necessary remote control commands.As a active switch, the IT6861E equalizes incoming TMDS data with optimal quality regardless of the incoming signal quality. 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. In addition, the input terminations are disconnectable and hence significantly lower the system power consumption in inactive modes.The IT6861E embeds an EDID RAM to save the cost of the three external EDID ROMs. The process of downloading the EDID data into the RAM is simplified by the firmware programming. The IT6861E also embeds three 1K-ohm resisters for HPD signal paths to save external resisters and easy to implement the plug authentication.The IT6861E also incorporates I2C repeater in its DDC switches, which isolates the DDC capacitances of the two sides of the switch. This allows for longer cable cascading as well as significantly eases the system design to pass Test ID 8-9: DDC/CEC Line Capacitance and Voltage of the HDMI Compliance Test.

特性 Features

• ● Active Bridge, providing superior performance over traditional passive switches
● Can operates in both HDMI and MHL mode
● Compliant with HDMI 1.4 and MHL 2.0 standards
● Support HDMI 4Kx2K video format and 3D up to 1080P/3D@60Hz
● Support MHL 24-bit mode and PackedPixel mode up to 1080P@60Hz
● Serial data rate at up to 3.0Gbps, capable of supporting the following digital video formats in Deep Color Mode at up to 36 bits (12 bits/color):DTV resolutions: 480i, 576i, 480p, 576p, 720p, 1080i to 1080pPC resolutions: VGA, SVGA, XGA, SXGA to UXGA● Internal AC-coupling at TMDS inputs to cope with uneven intra-pair DC levels of incoming TMDS signals.
● Embedded EDID RAM to saves external EDID ROM costs
● Embedded HPD resistors
● Active port detection by monitoring PWR5V inputs and TMDS input clock.
● DDC I2C repeater isolates backend DDC capacitive loading from frontend, enhancing the DDC operation compatibility
● Embedded CEC/RCP hardware
● Human Body Mode ESD protection up to 4kV for all TMDS differential input pins
● Disconnectable input terminations with auto-calibrated impedances
● Adaptive input equalization supporting long and short cables at the same time
● Software-mode operation providing flexibility
● Two possible serial programming device address..
● Programmable TMDS output current level
● Programmable source terminations compliant with HDMI 1.4 standard, providing optimal source data eyes at high speeds
● High-impedance TMDS output when disabled
● Optional backend receiver termination detection for auto power down
● 48-Pin LQFP package
● RoHS Compliant ( 100% Green available )