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Error correction problem delays production of TI chipset

Posted: 25 Apr 2002 ?? ?Print Version ?Bookmark and Share

Keywords:Texas Instruments? chip? Internet audio application? PC? digital audio player?

Error correction problems on an integrated USB port has delayed Texas Instruments Inc.'s volume production of its fourth-generation chipset for Internet audio applications until late this quarter or early next quarter, the company said.

Introduced in October 2000, the company had planned to move the TMS320DA250 chipset into volume production in 2001.

"We did uncover a small problem in the DA250 in 4Q01 that required an unplanned revision of the device prior to the 2001 holiday season," a TI spokesman said. The company had intended to have the chip set in volume production in time for the holiday shopping season.

TI has revised the silicon and improved its error correction by a factor of 100, said Chris Schairbaum, worldwide marketing director and program manager for the DA250 at TI.

The error correction problem could have led the chipset to dropped packets during audio file transfers across a USB connection between a PC and a digital audio player, TI said. The problem was uncovered during early customer runs and internal validation and characterization, Schairbaum said.

The TMS320DA250 chipset features higher integration, greater performance and lower power consumption than TI's earlier-generation DSPs for Internet audio applications. It is TI's first Internet audio chipset to integrate a USB interface on-chip. It also integrates Sony Memory Stick and Secure Digital Memory Card interfaces.

The revision did not hamper many customers because "most chose to move towards a spring 2002 launch of their new products using the revised DA250 silicon," the TI spokesman said. "We are now in the final stages of our ramp to production readiness."

The chipset is based on TI's TMS320C55X core and will be produced in a 0.15? process, then moved to a 0.13? process to reduce its power consumption another 50 percent, the company said.

? Margaret Quan

EE Times





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