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LVDS serialiser saves up 83% board space

Posted: 14 Aug 2009     Print Version  Bookmark and Share

Keywords:serialiser  LVDS  processor 

SN75LVDS83B LVDS serialiser

Texas Instruments Inc. has released what it claims to be the first LVDS serialiser 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 per cent. The serialiser supports 8bit colour and serialises 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 serialiser 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 per cent with the BGA package, and up to 39 per cent 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 Rs.127.01 ($2.60), and a 56-ball BGA package priced at Rs.136.77 ($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 Rs.102.58 ($2.10). All prices are for quantities of 1,000 units.

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