Analog Devices' Innovative Direct Digital Synthesis Technology Now Available for Low-Power, Portable Electronics: Consuming just 50 mW of power at a 250-MHz clock rate, ADI's direct digital synthesis IC delivers price and performance to mobile industrial and communications devices.

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Analog Devices, Inc. (NYSE: ADI), a global leader in high-performance semiconductors for signal processing applications, is expanding the applicability of its industry leading direct digital synthesis technology into battery-powered industrial, communications and defense electronics applications with the introduction of a complete low-power, low-cost Direct Digital Synthesizer (DDS) specifically designed for wireless, handheld equipment. Unlike competing approaches used to synthesize a digitally controlled frequency, the AD9913 is the first DDS device to deliver a 250-MHz clock rate while consuming as little as 50 mW of power. At less than $5 in volume quantities and available in a compact chip-scale package, the new IC is ideally suited for portable barcode scanners, radar detectors, remote radio controls and other products that require a cost-effective combination of performance and low-power operation.

Larger systems like wireless base stations and test and measurement equipment have been taking advantage of the higher operating-frequency ranges, faster linear frequency hopping and other performance benefits of DDS technology for the better part of a decade

    Unlike phase-locked loop (PLL) devices, which suffer from settling times measured in microseconds and fine-tuning limitations, the AD9913 settles in nanoseconds with granularity well below 10 mHz. Other approaches, including field-programmable gate arrays (FPGAs) with embedded DDS functions, have difficulty matching the AD9913's greater than 80-dB spurious-free dynamic range (SFDR) performance on a 100-MHz output signal while requiring higher operating power and the addition of a discrete digital-to-analog converter (DAC) to synthesize the sine wave. The AD9913 includes an on-chip 10-bit high-speed DAC with no price premium compared to a stand-alone DAC. The fine-tuning granularity and higher SFDR of the AD9913 allow it to more quickly and accurately generate a stable signal in the band of interest. In a remote radio-controlled application, for example, such as an unmanned aircraft, this means the operator is less likely to lose contact with the airplane due to frequency interference that can result in a dropped signal.

"Larger systems like wireless base stations and test and measurement equipment have been taking advantage of the higher operating-frequency ranges, faster linear frequency hopping and other performance benefits of DDS technology for the better part of a decade," said Kevin Kattmann, product line director of High-Speed Signal Processing, Analog Devices. "With the launch of the AD9913, designers of battery-powered devices can now incorporate the same faster switching speeds, fine frequency resolutions and broader frequency spectrum into their products with no price or power penalty."

Availability and Pricing

The AD9913 is available in full production quantities. The AD9913 costs $4.65 per unit in 100,000-unit quantities and is available in a 32-lead LFCSP (lead-frame chip-scale package). For more information, visit: http://www.analog.com/pr/AD9913.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker "ADI" and is included in the S&P 500 Index. http://www.analog.com

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