The IT6623 is HDMI 1.4a transceiver with a dual-port HDMI 1.4a receiver and a single-port HDMI1.4a Transmitter, can extract audio signals out to external audio processor and then feed the processed audio signals into IT6623 to renew audio bit stream which combine with video bit stream as the new AV bit stream, then output to HDMI Sink via the IT6623 transmitter. IT6623 is fully compatible with HDMI 1.3, compatible with HDMI 1.4a 3D and HDCP 1.4 and also backward compatible to DVI 1.0 specifications, with its Deep Color capability (up to 36-bit) ensures robust reception of high-quality uncompressed video content, along with state-of-the-art uncompressed and compressed digital audio content such as DTS-HD and Dolby TrueHD in digital televisions, DVD/HD-DVD/Bluray players. The IT6623 also supports all the primary 3D formats which are compliant with the HDMI 1.4a 3D specification
The IT6623 receives and provides up to 8 channels of I2S digital audio outputs, with sampling rate up to 192kHz and sample size up to 24 bits, facilitating direct connection to industry-standard low-cost audio DACs. Also, an S/PDIF output is provided to support up to compressed audio of 192kHz frame rate. Super Audio Compact Disc (SACD) is supported at up to 8 channels and 88.2kHz through DSD (Direct Stream Digital ports) ports.
The IT6623 also encodes and transmits up to 8 channels of I2S digital audio, with sampling rate up to 192kHz and sample size up to 24 bits. In addition, an S/PDIF input port takes in compressed audio of up to 192kHz frame rate, while Super Audio Compact Disc (SACD) is supported through dedicated DSD ports (Direct Stream Digital ports) at up to 88.2kHz one-bit audio. The newly supported High-Bit Rate (HBR) audio by HDMI Specifications v1.3 is provided by the IT6623 in two interfaces: with the four I2S input ports or the S/PDIF input port. With both interfaces the highest possible HBR frame rate is supported at up to 768kHz.
Each IT6623 comes preprogrammed with unique HDCP key, in compliance with the HDCP 1.4 standard so as to provide secure transmission of high-definition content. Users of the IT6623 need not purchase any HDCP keys or ROMs.