HDMI 1.4 Transceiver
30 November 2009
ADI has expanded its Advantiv portfolio with the first HDMI 1.4 transceiver for home and pro AV designs.
Analog Devices’ ADV7623 HDMI 1.4 transceiver incorporates Xpressview fast switching technology, which enables seamless, automatic switching between HDMI-enabled AV devices in a fraction of a second, eliminating up to 19 seconds of delay required by many AV systems.
Designed for home theatre-in-a-box (HTIB) systems, AVRs (audio/video receivers), HBR (high-bit-rate) TV, pro-AV matrix switches, and sound bar speaker systems, the ADV7623 is the only HDMI 1.4 device to integrate a 4:1 multiplexed input HDMI receiver, HDMI transmitter, and CEC (Consumer Electronics Control) buffer and controller into a single platform.
Unlike other offerings that require multiple components, ADI’s single-chip HDMI 1.4 transceiver lowers component and board costs by 33%, while supporting features such as OSD (on-screen display) and ARC (audio-return channel); traditionally reserved for higher priced entertainment systems.
By combining the HDMI receiver, HDMI transmitter, CEC, OSD and ARC functions on a single chip, ADI’s new transceiver relieves much of the design work involved in interfacing multiple chips together in HDCP (high-bandwidth digital content protection) repeater designs. The ADV7623 HDMI 1.4 transceiver features a complete SDK (software development kit) that includes ADI’s proven repeater driver libraries.
In addition, the ADV7623 additionally features the new HDMI 1.4 audio feature, ARC, which enables AVRs and other AV equipment to receive audio directly from an HDTV over the existing HDMI cable, eliminating the expense of an extra cable for audio connectivity.
The ADV7623 provides complete audio support for eight channels of I2S audio, S/PDIF (Sony/Philips Digital Interface Format) digital audio output, SACD (super audio CD) and compressed SACD with DSD (direct stream digital), and DST (direct stream transfer ) output interfaces. The HDMI transceiver also supports HBR audio streaming to allow recovery (and downstream processing) of compressed lossless audio formats, including Dolby TrueHD and DTS-HD Master Audio or DTS-HD High Resolution Audio.
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