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Optoelectronics/Displays??

HDMI/DVI switch maintains high signal integrity

Posted: 04 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:HDMI/DVI passive switch? Fibre Channel? LVDS-based backplanes?

MAX4886

Maxim Integrated Products has introduced the MAX4886 quad, high-speed, high-bandwidth HDMI/DVI passive switch capable of switching between two digital video signals into a single monitor or multiple HDMI/DVI connectors while maintaining a high level of signal integrity.

To ensure signal integrity at fast switching rates, MAX4886 features a wide common-mode signal range that enables rail-to-rail signal switching at data rates in excess of 4Gbps. As a result, the new product provides high performance for general-purpose, differential-switching applications such as full line-rate GbE, Fibre Channel and telecom/networking LVDS-based backplanes. Moreover, the MAX4886's ability to multiplex two HDMI/DVI video streams into a single port enables the design engineer to address multiple applications in the consumer video and PC marketplace, such as desktop PCs, HDTVs, digital projectors and other video applications.

MAX4886 contains four differential pairs of 1:2 or 2:1 switches for multiplexing/demultiplexing RGB and CLK video signals in HDMI/DVI switching applications. Based on n-channel MOSFET architecture, these switches include an efficient, internal charge pump, resulting in very low quiescent current for power-sensitive designs. Due to this advanced architecture, MAX4886 provides extremely low 2.5pF on-capacitance and 8 on-resistance, which enables it to meet stringent digital-switching requirements.

MAX4886 operates from a single 3-3.6V supply and is fully specified over the extended -40C to 85C temperature range. It is available in a space-saving, 3.5-by-9mm, 42-pin TQFN package. Pricing starts at $1.50 for 1,000-unit quantities.




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