产品展示
IT66325
产品详情
The IT66325 is an HDMI 2.1 1 IN to 1 OUT Re-timer with eARC receiver function which supports maximum signaling rate of up to 12 Gbps/channel. It is compliant with the latest HDMI 2.1a specification and backward compatible with the HDMI 2.0 and HDMI 1.4 specifications. With 12 Gbps/channel capability, the IT66325 can support ultra-high resolution content streams, such as 8K x 4K video formats.
1 input ports and 1 output port support HDMI 2.1 data rate of up to 48 Gb/s. Also, the IT66325 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 IT66325 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 application, the external audio would like to be transmitted by TX port without HDMI input signals. An embedded pattern generator in IT66325 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 IT66325 TX port contains an audio receiver designed for 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, is allowed to receive 8-channel 192K or 8-channel 96K audio from HDMI Sink. No video stream and CEC function is required when eARC link is active.
The IT66325 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 IT66325 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 IT66325 need not purchase any HDCP keys or ROMs.
The IT66325 also provides a complete solution of Consumer Electronics Control (CEC) function. This optional CEC feature of HDMI specification allows users to control two or more CEC-enabled devices through HDMI network. With IT66325 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 no external Flash and MCU, which saves the BOM cost and board size.
产品特点
- 1 HDMI 1.4/HDMI 2.0/HDMI 2.1(48 Gb/s) input port to 1 HDMI 1.4/HDMI 2.0/HDMI 2.1(48 Gb/s) output port. The following HDMI 2.1 video timings are supported:
- - 8K60 YCbCr 4:2:0 12-bit video
- - 8K30 RGB/YCbCr 4:4:4 12-bit video
- - 4K120 4:4:4 12-bit high frame rate video
- Compliant with HDMI 1.4b, HDMI 2.0b, HDMI 2.1a, HDCP 1.4 and HDCP 2.3 specifications
- Bandwidth of up to 48 Gbps/4-channel in FRL mode, supporting ultra-HD resolution 8K4K format
- Bandwidth of up to 18Gbps/3-channel in TMDS mode, supporting 4K2K@60 format
- On-chip EDID RAM for each input port
- Supports DSC compression video stream pass through mode
- Supports HDMI 2.1 eARC receiver function on TX port
- Supports HDMI 2.1 Variable Refresh Rate (VRR)
- Supports AC coupling at TMDS inputs for level shifting
- Adaptive and programmable input equalization supporting long and short cables
- Auto-calibrated and programmable TMDS/FRL output current level, with optional output pre-emphasis and source termination
- Supports HDCP decryption on RX port and disable HDCP encryption to TX port for closed system
- Supports HDCP 1.4 to HDCP 2.3 conversion
- Supports HDCP 2.3 to HDCP 1.4 conversion
- Bi-direction Color Space Conversion (CSC) between RGB and YCbCr color spaces with programmable coefficients
- Supports audio extraction and output data through I2S/TDM, SPDIF and DSD audio interface
- - Up to four I2S interfaces supporting maximum 8-channel audio, with sample rates of 32~192 kHz and sample sizes of 16~24 bits
- - SPDIF interface supporting PCM, Dolby Digital, DTS digital audio at up to 192 kHz frame rate
- - Supports 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
- Supports HDMI 1.4 3D feature:
- - Frame packing mode: up to 1080P@23.98/24 Hz and 720P@59.94/60 Hz
- - Top and Bottom: up to 1080P@59.94/60 Hz
- - Side-by-Side (Half): up to 1080P@59.94/60 Hz
- - Side-by-Side (Full): up to 720P@59.94/60 Hz
- Supports HDMI 2.0 3D feature:
- - Frame packing mode: up to 4K x 2K@23.98/24/30 Hz and 1080P@59.94/60 Hz
- - Top and Bottom: up to 4K x 2K@59.94/60 Hz
- - Side-by-Side (Half): up to 4K x 2K@59.94/60 Hz
- - Side-by-Side (Full): up to 1080P@59.94/60 Hz
- - Supports 3D Dual-View and 3D Independent View
- Supports external audio stream merged with the input video stream and output to HDMITX port
- Supports HDR and Gamut Metadata packet
- Supports adaptive and programmable input equalization for long and short cables
- Supports auto-calibrated and programmable TMDS/FRL output current level, with optional output pre-emphasis and source termination
- Supports output TMDS R/G/B/C channel swapping
- Integrated pre-programmed HDCP keys
- Pure hardware HDCP engine increasing the robustness and security of HDCP operation
- Monitor detection through Hot Plug Detection and Receiver Termination Detection
- Supports 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
- 100-Pin 10 x 10 QFN package
- RoHS Compliant (100% Green available)
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