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Elantec device folds two video chips into single IC

Posted: 28 May 2002 ?? ?Print Version ?Bookmark and Share

Keywords:el4501c? dc restore ic? sync separator ic? video ic? video processing ic?

Elantec Semiconductor Inc. says it has one of the first integrated dc-restore and sync-separator ICs, a device that consolidates in one chip functions that typically require two ICs. Along with that EL4501C device, Elantec has unveiled the EL1528C, a monolithic dual-port DSL line driver for high-density CO applications.

The 5V, 100MHz, rail-to-rail output EL4501C, with inputs that go to ground, is designed to extract timing information from a video signal in preparation for further video processing. A data-slice function extracts embedded-data information in the video signal. Applications include consumer and professional security video, data extraction and video-effects equipment.

"Separate dc-restore and sync-separator video functions are normally purchased in combination," said Michael Jennings, director of strategic marketing for video and amplifier products. "By integrating them, we help our customers reduce board area and cost."

He said the device is well-suited for high-volume consumer electronics applications that need single 5V-supply operation. The sync separator in the new IC has been optimized for applications in which the incoming signal is not as clean as it would be in professional applications.

The EL4501C is sampling now. It's packaged in a 24-pin TSSOP and is priced at $4.50 in lots of 1,000 pieces.

The EL1528C, which Elantec is billing as the first commercially available single-chip, dual-port DSL driver, is manufactured on the company's high-voltage silicon-on-insulator process. It employs proprietary circuitry to achieve typical channel separation of -85dB, as well as low distortion and per-port power consumption of 675mW in full-rate ADSL applications.

This current-mode feedback device consists of two DSL line drivers that share a set of power supplies and bias circuitry.

Packaged in a 4-by-5mm LPP, the device is said to reduce DSL line driver power by 8 percent to 15 percent and package footprint by 30 to 50 percent compared with the part's predecessors. The device requires as many as 11 fewer external components per port than other voltage-feedback line drivers, Elantec said.

The line driver targets designs requiring two rails with 112V supply voltages and up to 450mA drive current.

The EL1528C will be available in production quantities in June, priced at $4.35 in 1,000-piece units.

EE Times





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