Maxim's New VGA Multiplexer Lowers Industry-Standard Chip Count from Three to One.SUNNYVALE, Calif. -- Maxim Integrated Products (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on :MXIM) introduces the MAX4885, a high-speed analog switch that performs the entire VGA (Video Graphics Array) The display standard for the PC. All PC display adapters support VGA, and Windows machines boot up in "VGA mode" before switching to higher resolutions. video switching task: R, G, B, H/V H/V Horizontal/Vertical H/V Height/Velocity , and the DDC See VESA DDC. (I2C I2C Inter-Integrated Circuit I2C Intelligent Interface Controller I2C Intelligent Controller (a)) switching/translation. Previous solutions required three ICs, discrete FETs, and ESD-protection diodes to accomplish these tasks. The MAX4885 saves board space, reduces system cost by replacing all these parts with one IC, and provides the ability to switch more than two video sources. In a typical application, the MAX4885 switches the signals from one source and connects them either to an internal connector or through to a docking station. Alternatively, the MAX4885 switch can be used in a monitor or projector to select one of two inputs. Typical applications include laptop computers, monitors, projectors, and HDTV (High Definition TV) A set of digital television (DTV) standards that offer the highest resolution and sharpest picture. Although some HDTV sets are available in standard (rather square) screen sizes, the overwhelming majority of sets are wide screen, which eliminates receiver/monitors. One Chip Does the Work of Many Historically analog-RGB switch implementation required a RGB (Red Green Blue) The computer's native color space, which is the color system for capturing and displaying images. RGB was derived from our own perception of color because human eyes are sensitive to red, green and blue (see trichromaticity). switch, H/V sync switch, logic-level translators, DDC FETs, and ESD-protection diodes. The MAX4885 is the first device to simplify VGA switch implementation into a single-chip solution. "With the MAX4885, Maxim offers customers a complete solution at a highly competitive price point and with a simple passive switch design," said Jeff DeAngelis, Director of Business Management for the Company's Interface, Switch, and Protection business unit. The MAX4885 gives customers greater than 500MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. broadband width and 3-state capability for achieving high 4:1 mux ratios. "Video design engineers can now simplify their VGA design with our integrated 3-channel RGB video switch, H/V sync signal switches, and DDC signal switches. They can also incorporate TTL-compatible logic-level translators as well as robust +/-8kV ESD (1) (Electronic Software Distribution) Distributing new software and upgrades via the network rather than individual installations on each machine. See ESL. protection," DeAngelis added. Compared to traditional analog-RGB implementation, the MAX4885 uses 25mm2 (package information below), 50% less board space than the prior 50mm2 norm. Also, this new part costs 25% to 30% less than its multichip predecessors. The Achievement Is in the Integration By integrating three SPDT SPDT Single Pole, Double Throw SPDT Single Point Diamond Turning (precision lathe used in optical fabrication) SPDT Shadow Page Directory Table , 500MHz analog switches, 2 SPDT H/V signal switches, 2 SPDT DDC signal switches, 2 TTL (1) (Time To Live) A parameter in a network packet that sets a time limit to its validity. In order to prevent an IP packet from propagating endlessly through the network, the value in the TTL field is reduced by each router. compatible logic-level gates, and the +/-8kV ESD-protection devices, the MAX4885 provides the customer with a complete 1:2 or 2:1 VGA switching solution. This part is the first device available in the market to address this total function. The DDC switches are level-shifting n-channel FETs, offering high-voltage protection to sensitive low-voltage circuits. The built-in logic-level shifting of the H/V signals allow a low-voltage graphics chip to interface with the required 5V video TTL-level output. The MAX4885 can operate from a single +5.0V supply or a +5.0V supply, and a second supply (usually the available +3.3V supply) which is used for clamping the dangerous higher voltages to prevent damage to the signals in the DDC path. An innovative 3-state feature allows the cascading of multiple MAX4885 ICs. Multiplexing ratios of 4:1, or more, can be achieved to support more than two video sources. Simplifies Switching Design for Many Applications Target applications for the MAX4885 are laptop computers, consumer video products, digital projectors, computer monitors, servers, and other industrial PC-related peripherals. In notebook applications, the MAX4885 will be placed on the motherboard and located between the standard VGA connector and the multipin docking station connector. The MAX4885 handles all the necessary switching between the docking station and the VGA connector. The MAX4885 can also be used in high-resolution analog video monitors to support multiple incoming signals to source into the display. Available for Design Now The MAX4885 provides customers these unique capabilities in a compact 5mm x 5mm, 32-pin TQFN TQFN Thin Quad Flat No-Lead package. The MAX4885 is specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Pricing begins at $1.25 (1000-up, FOB FOB 1) adj. short for Free on Board, meaning shipped to a specific place without cost. 2) Friend of Bill (Clinton). (See: Free on Board) USA) and samples are available now. An application board is available by request. For more information, please visit http://www.maxim-ic.com/MAX4885info. Maxim Integrated Products is a leading international supplier of quality analog and mixed-signal products for applications that require real world signal processing. For more information, contact Maxim at 120 San Gabriel Dr., Sunnyvale, CA 94086. Telephone: 408-737-7600 or our URL URL in full Uniform Resource Locator Address of a resource on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. : http://www.maxim-ic.com. DATA SHEET: A Data Sheet for this product is available on the web. http://www.maxim-ic.com/MAX4885 GRAPHIC: Graphics for this product are available on the web in three formats: PREVIEW image (smaller image to view in Navigator or Explorer): http://www.maxim-ic.com/PRGraphics/images/PR4885.jpg http://www.maxim-ic.com/PRGraphics/images/PR4885-2.jpg JPEG (300 dpi, high quality, RGB color) http://www.maxim-ic.com/PRGraphics/images/4885.jpg http://www.maxim-ic.com/PRGraphics/images/4885-2.jpg TIFF (300 dpi uncompressed CMYK TIF, in a .ZIP archive(b)) http://www.maxim-ic.com/PRGraphics/images/4885-cmyk-tif.zip http://www.maxim-ic.com/PRGraphics/images/4885-2-cmyk-tif.zip (a)Purchase of I2C components from Maxim Integrated Products, Inc., or one of its sublicensed Associate Companies, conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification defined by Philips. (b)Use Winzip, StuffIt Expander or similar de-archive utility to access the .ZIP file |
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