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LVDS serializer enables glueless connection

Posted: 14 Aug 2009 ?? ?Print Version ?Bookmark and Share

Keywords:serializer? LVDS? processor?

SN75LVDS83B LVDS serializer

Texas Instruments Inc. claims the first LVDS serializer that connects directly to 1.8V powered processors. Using the company's FlatLink technology, the SN75LVDS83B cuts the need for a costly level shifter when using 1.8V and 2.5V logic interfaces, lowering cost and reducing board space by up to 83 percent. The serializer supports 8bit color and serializes RGB data. It then consolidates 24 data lines into one LVDS clock and four LVDS data pairs, which connect to LCD modules.

The SN75LVDS83B supports applications such as netbooks, mobile Internet devices, digital picture frames and others where an LVDS link from a processor to the LCD module is required. The SN75LVDS83B supports a very broad pixel frequency range from 10MHz up to high-definition screen resolutions of 135MHz. The device is compatible with numerous processors, including OMAP35x applications processors and digital media processors based on TI's DaVinci technology.

The LVDS serializer connects directly to any TTL level from 1.8V to 3.3V, eliminating the need for additional components. It eliminates the level shifter, lowering cost by more than one dollar and reducing board space by up to 83 percent with the BGA package, and up to 39 percent with the TSSOP package. Also its 135MHz pixel clock supports HD screen resolutions

The SN75LVDS83B is available now in a 56-pin TSSOP priced at $2.60, and a 56-ball BGA package priced at $2.80. The SN75LVDS83A is available in the 56-pin TSSOP package only. The SN75LVDS83A has a maximum frequency of 100MHz, supports only 3.3V input levels and is priced at $2.10. All prices are for quantities of 1,000 units.

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