Analog Devices Drives Broadband Wireless Access Deployment with Highly Integrated RF Transceivers for WiMAX Terminals.Two New Direct Conversion Transceivers Offer High Integration and Outstanding RF Performance to Enable Low-Cost WiMAX Terminals with Expanded Coverage and Improved Quality of Service BOSTON -- WiMAX World Conference, Oct. 10-12-At the WiMAX World Conference, Analog Devices Inc. (NYSE NYSE See: New York Stock Exchange : ADI), a global leader in high-performance semiconductors for signal processing applications, is demonstrating the first two devices in a family of RF (radio frequency) transceivers for WiMAX (Worldwide Interoperability for Microwave Access) certified terminals that will help lower the cost and drive the wide-scale deployment of broadband wireless access. Based on the 802.16 standard, WiMAX terminals provide wireless broadband connectivity and are low cost alternatives to wired solutions such as DSL DSL in full Digital Subscriber Line Broadband digital communications connection that operates over standard copper telephone wires. It requires a DSL modem, which splits transmissions into two frequency bands: the lower frequencies for voice (ordinary and cable modems. Leveraging ADI's data conversion and RF signal processing expertise, the new transceivers integrate high-performance data converters on chip and deliver outstanding RF performance, enabling a WiMAX terminal solution that meets the reduced cost requirements essential for high volume deployment. Excellent RF performance ensures expanded coverage and improved service qualityCofactors that enhance the user experience and help to facilitate consumer adoption. Unlike conventional solutions that implement the analog functions on separate devices or include the data converters on the ASIC (Application Specific Integrated Circuit) Pronounced "a-sick." A chip that is custom designed for a specific application rather than a general-purpose chip such as a microprocessor. , the AD9352 and AD9353 RF transceivers utilize "smart-partitioning," a concept pioneered by ADI, to integrate all the analog signal processing Analog signal processing is any signal processing conducted on analog signals by analog means. "Analog" indicates something that is mathematically represented as a set of continuous values. This differs from "digital" which uses a series of discrete quantities to represent signal. technologyCoanalog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF functionsCoon a single chip. This allows the digital baseband chips to be manufactured on more cost-effective fine line processes, such as 90 nm or 65 nm. The transceivers feature a direct connection to the digital modem via the ADI/Q[TM] digital I/Q I/Q Inphase and Quadrature interface, a simple parallel CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. digital I/O interface that has been adopted by multiple digital modem partners. "ADI is the first company to introduce RF CMOS direct conversion WiMAX transceivers that combine high integration with high performance, and offer the ADI/Q digital I/Q interface for a seamless connection to the digital baseband," said Bernard Aboussouan, VP, marketing and business development for Sequans Communications, a leading supplier of fixed and mobile WiMAX silicon and software. "We chose to partner with ADI and implement the ADI/Q digital interface on our SQN SQN Squadron SQN Sine Qua Non SQN Sequoyah Nuclear Plant (Tennessee) SQN School Quota Number (military) SQN Sequence Number 1110 802.16e compliant digital baseband. We are confident that ADI's WiMAX transceivers combined with our digital baseband will offer a solution that meets the price, performance and time-to-market requirements of WiMAX terminal manufacturers." "WiMAX continues to gain industry support, with recent commitments by worldwide and North American North American named after North America. North American blastomycosis see North American blastomycosis. North American cattle tick see boophilusannulatus. carriers to build-out a nationwide WiMAX network," said Dave Robertson, product line director, High Speed Signal Processing Group, Analog Devices. "By introducing products like the AD9352 and AD9353 transceivers, Analog Devices is helping to facilitate the mass deployment of WiMAX and reduce the barriers to cost and performance." Highly-Integrated RF Transceivers The AD9352 and AD9353 are fully-integrated, direct conversion transceivers for WiMAX (IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. 802.16) wireless network systems that offer a complete RF and mixed-signal system on a chip. The dual-band AD9352 operates in the 2.3 to 2.7 GHz and 4.9 to 5.9 GHz ranges and the single-band AD9353 operates in the 3.3 to 3.8 GHz range. Together, the transceivers cover most licensed and unlicensed bands worldwide. Integrated on the transceivers are 12-bit, 160 mega-samples-per-second (MSPS MSPS Mega-Samples Per Second MSPS Million Samples Per Second MSPS Michigan Society of Professional Surveyors MSPS Modular Synthesis Plug-In System MSPS Million Symbols per Second MSPS mobilization stationing and planning system (US DoD) ) ADCs and DACs, along with smart system features such as self-calibration, automatic gain control, transmit power control Transmit Power Control is a technical mechanism used within some networking devices in order to prevent too much unwanted interference between different wireless networks (e.g. the owner's network and the neighbour's network). , support for automatic frequency control, and auxiliary ADCs and DACs for system monitoring. The on-board converters and smart system features reduce the required level of real time signal processing between modem and the transceiver, thus dramatically simplifying RF driver development and support. The transceivers also integrate a high sensitivity direct-conversion CMOS receiver, and channel-select filtering at baseband. A low phase noise LO path is achieved by integrating a fractional-N synthesizer. To reduce system cost, an on-chip crystal oscillator replaces the expensive voltage controlled temperature compensated crystal oscillator (VCTCXO). Superior RF Performance The devices offer excellent noise figure of 3.5 dB along with adjacent channel and alternate channel rejection capability that is 8 dB higher than the 802.16 standard requires. The devices' highly linear transmit path has excellent spectral purity and offers error vector magnitude The error vector magnitude or EVM is a measure used to quantify the performance of a digital radio transmitter or receiver. A signal sent by an ideal transmitter or received by a receiver would have all constellation points precisely at the ideal locations, however various (EVM EVM Earned Value Management EVM Evaluation Module EVM Error Vector Magnitude EVM Electronic Voting Machine EVM Expert Group on Vitamins and Minerals EVM Economic Value Management EVM Extraneous Vegetable Matter EVM Extra-Value Meal EVM Electronic Voltmeter ) of -37 dB at 0 dBm output power. The transmit power is detected by an accurate power detector and autonomously controlled with a range of 60 dB with step increments of 0.25 dB. Availability and Pricing The AD9352 and AD9353 are sampling now with full production scheduled for December 2006. The transceivers, priced starting at $14.95 per unit in 1,000-piece quantities, are available in 9 mm Eu 9 mm 64-pin lead free chip scale packages (LFCSP LFCSP Lead Frame Chip Scale Packaging (analog devices) LFCSP Lead Frame Chip Scale Package ), and are specified over an operating temperature range of -40 degrees C to +85 degrees C. An evaluation board is available. For more information, visit http://www.analog.com/pr/wimaxtransceivers. About Analog Devices Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the most long-standing, high-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 around the world, representing virtually all types of electronics equipment. Celebrating more than 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing See DSP. Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). applications, Analog Devices, Inc. is headquartered in Norwood, Massachusetts, and employs approximately 8,900 people worldwide. It has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, and the Philippines. Analog Devices' common stock is listed on the New York Stock Exchange New York Stock Exchange (NYSE) World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City. and ADI is included in the S&P 500 Index. ADI/Q is a trademark of Analog Devices, Inc. All other trademarks included herein are the property of their respective owners |
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