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IT66324: 3 IN to 1 OUT HDMI 2.0 Switch with HDMI 2.1 eARC RX and Embedded MCU

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  • Specification Table

  • Product Information

  • Specification Table

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Product Information

IT66324: 3 IN to 1 OUT HDMI 2.0 Switch with HDMI 2.1 eARC RX and Embedded MCU

The IT66324 is an HDMI 2.0, 3 IN to 1 OUT switch with eARC receiver function which supports maximum signaling rate up to 6 Gbps/channel. It is compliant with the latest HDMI 2.0b specification and backward compatible with the HDMI 1.4 and DVI specifications. With 6 Gbps/channel capability, the IT66324 can support ultra-high resolution content streams, such as 4K x 2K@50/60 Hz video formats.


All 3 input ports and 1 output port support HDMI 2.0 data rate up to 18 Gb/s, and the IT66324 also supports various data processing functions, such as video color space conversion function and audio extract/merge function. For the audio content in HDMI data stream, the IT66324 can extract the audio from the input stream and/or merge the external audio to the output stream.


With the audio extract/merge function, the audio stream from HDMI RX port can be decoded and output to external audio processor through various audio interfaces. After processed by the audio processor, the new audio content can be encoded to audio stream and merged to original video stream from RX port and then a complete video/audio stream can be transmitted by TX port.


In some applications, the external audio would like to be transmitted by TX port without HDMI input signals. An embedded pattern generator in IT66324 could be used to generate internal video stream, which is merged to the external audio stream generated by audio encoder function to form a complete HDMI output signal.


The IT66324 TX port contains an audio receiver designed for HDMI 2.1 Enhanced Audio Return Channel (eARC) and it is also backward compatible with the HDMI 1.4 Audio Return Channel (ARC). When operating in eARC mode, the Differential Mode Audio Channel (DMAC) bandwidth, i.e. 98.304 Mbps, allows to receive 8-channel 192 K audio from HDMI Sink. No video stream and CEC function is required when eARC link is active.


The IT66324 also builds in HDCP 1.4/2.3 hardware engines, which can be used to disable the HDCP encryption at the output port or convert HDCP 2.3 to HDCP 1.4 for closed system application. Each IT66324 chip comes preprogrammed with a unique HDCP key, in compliance with the HDCP 1.4/2.3 standard, so as to provide secure transmission of high-definition content. Users of the IT66324 need not purchase any HDCP keys or ROMs.


The IT66324 also provides a complete solution of Consumer Electronics Control (CEC) functions. This optional CEC feature of HDMI specification allows the user to control two or more CEC-enabled devices through HDMI network. With IT66324 embedded CEC PHY, users can use high-level software API to easily implement all the necessary remote control commands. The CEC bus related protocol is handled by the CEC PHY which eliminates extra loading of the MCU. With embedded MCU and Flash, customers need to external Flash and MCU, which saves the BOM cost and board size.

Features

  • Switch 3 HDMI 1.4/HDMI 2.0 (18 Gb/s) input ports to 1 HDMI 1.4/HDMI 2.0 (18 Gb/s) output port
  • Compliant with HDMI 1.4b, HDMI 2.0b, HDCP 1.4, HDCP 2.3 and DVI 1.0 specifications
  • On-chip EDID RAM for each input port
  • Support HDMI 2.1 eARC receiver function on TX port
  • Support HDMI 2.1 Variable Refresh Rate (VRR)
  • Support HDCP decryption on RX port and disable HDCP encryption to TX port for closed system
  • Support HDCP 1.4 to HDCP 2.3 conversion
  • Support HDCP 2.3 to HDCP 1.4 conversion
  • Bi-direction Color Space Conversion (CSC) between RGB and YCbCr color spaces with programmable coefficients
  • Support audio extraction and output data thru I2S/TDM, SPDIF and DSD audio interface

        -  Up to four I2S interfaces supporting maximum 8-channel audio, with sampling rates of 32~192 kHz and sampling sizes of 16~24 bits

        -  SPDIF interface supporting PCM, Dolby Digital, DTS digital audio at up to 192 kHz frame rate

        -  Support high-bit-rate (HBR) audio such as DTS-HD and Dolby True HD through the four I2S interface or the SPDIF interface, with frame rates as high as 768 kHz

        -  Compatible with IEC 60958 and IEC 61937

  • Support external audio stream merged with the input video stream and output to HDMITX port
  • Support HDMI 1.4 3D feature

        -  Frame packing mode with up to 1080P@23.98/24 Hz and 720P@59.94/60 Hz

        -  Top and Bottom with up to 1080P@59.94/60 Hz

        -  Side-by-Side (Half) with up to 1080P@59.94/60 Hz

        -  Side-by-Side (Full) with up to 720P@59.94/60 Hz

  • Support HDMI 2.0 3D feature

        -  Frame packing mode with up to 4K x 2K@23.98/24/30 Hz and 1080P@59.94/60 Hz

        -  Top and Bottom with up to 4K x 2K@59.94/60 Hz

        -  Side-by-Side (Half) with up to 4K x 2K@59.94/60 Hz

        -  Side-by-Side (Full) with up to 1080P@59.94/60 Hz

        -  Support 3D Dual-View and 3D Independent View

  • Support HDR and Gamut Metadata packet
  • Support adaptive and programmable input equalization for long and short cables
  • Support auto-calibrated and programmable TMDS output current level, with optional output pre-emphasis and source termination
  • Support output TMDS R/G/B/C channel swapping
  • Integrated pre-programmed HDCP keys
  • Purely hardware HDCP engine increasing the robustness and security of HDCP operation
  • Monitor detection through Hot Plug Detection and Receiver Termination Detection
  • Support input signal detection of non-active input port and fast switch function
  • Support multiplexing function between external audio input and internal audio stream
  • Embedded 256-byte Capabilities Data Structure
  • Embedded full-function pattern generator
  • Embedded hardware controlled CEC PHY
  • Embedded MCU and Flash
  • Intelligent, programmable power management
  • 128-Pin 14 x 14 LQFP package
  • RoHS Compliant (100% Green available)

Specification Table

After years of technology development, ITE has owned many types of advanced Silicon Intellectual Property (SIP) and highly integrated technology of system software/hardware.

PART NO.

PACKAGE TYPE

DESCRIPTION

FLASH SUPPORT

IT66324E

128-pin LQFP (14 mm x 14 mm)

3 IN to 1 OUT HDMI 2.0 Switch with HDMI 2.1 eARC RX and Embedded MCU

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