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TI's FPD-link serialiser offers highest tablet resolution

Posted: 21 May 2012     Print Version  Bookmark and Share

Keywords:lvds  fpd-link  serialiser 

Texas Instruments Inc. (TI) debuts the dual LVDS DS90C187, a low-power, FPD-Link serialiser that boasts the highest screen resolution while extending battery life in tablet computers, ebooks, laptops and portable display monitors.

 DS90C187

With the industry's highest pixel clock rate of 185MHz, the DS90C187 supports WQXGA LCD panels at 30Hz and QXGA panels at 60Hz. The nearest competitor only reaches 174MHz for WUXGA screen resolution, said TI. The DS90C187 also extends battery life by consuming a mere 90mW when supporting the 1080p WUXGA screen resolution, according to the company.

FPD-Link is the original LVDS interface for LCD panels and is interoperable with TI's FlatLink products. It uses three or more differential signals, plus a clock, to transmit video data to the panel. LVDS is the most widely deployed interface for mid-sized display panels and requires no software overhead, enabling faster time-to-market for production ramp. Until recently, display resolutions for tablets could get by with a single-lane LVDS interface. With increasing panel sizes and higher resolution displays, dual LVDS interfaces are proliferating.

Other key features and benefits of theDS90C187 include a single 1.8V supply rail that enables ultra-low 90mW typical power consumption when operating at WUXGA (1920 x 1200) high-definition resolution with 24bit RGB colour; and a 185MHz pixel clock that allows support of 24bit colour video resolution up to WQXGA (2560 x 1600) at 30Hz and QXGA (2048 x 1536) at 60Hz, enhancing the consumer's video experience.

A space-saving 7mm x 7mm dual row QFN package minimises board area and simplifies layout. The DS90C187 is said to support reduced-swing LVDS that mitigates electromagnetic interference (EMI). An optional 18bit colour mode, 6 bits per pixel, further reduces power consumption and enables compatibility with lower cost panels.

The DS90C187 joins the DS90C185 single FPD-Link serialiser, which consumes only 50mW of power, supports 24bit LCD screen resolutions up to SXGA+ (1400 x 1050) at 60Hz, and comes in a tiny 6mm x 6mm package.

The DS90C187 and DS90C185 provide mobile computing designers the widest array of options to choose from when selecting the graphics processor and display panel. The serialisers serve as the bridge between the processor and LCD display, and can be combined with TI's smart multi-core OMAP applications processors for delivery of high-resolution video.

The DS90C187 and the DS90C185 are available now, offered in 92-pin and 48-pin QFN packages, respectively. Suggested retail pricing is Rs.206.81 ($3.95) and Rs.130.89 ($2.50), respectively, in 1,000-unit quantities.





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