Speaking of the devil, LOL. Apparently, the reality of the numerous GPRS/EDGE/WCDMA trials going on in different parts of the world is also lost on you. Okay, let's use common sense.
How can you sell a current or next generation network nowadays without any assurance of handset supply? How can you provide any assurance of current or next generation handset supply if you don't provide any visibility up and down the global supply lines?
Here's a great example of a WCDMA-only chip. See if you can find the Intel connection in all these. LOL.
BOSTON, June 12 /PRNewswire/ -- Analog Devices, Inc. (NYSE: ADI) today disclosed technical details of its first chip targeting 3G cellular terminal applications. Announced earlier this year and developed jointly with Mitsubishi Electric Corporation, a leader in the cellular terminal market, the chip was described in a paper presented by Analog Devices RF Design Engineer Marc Goldfarb at the IEEE RFIC Symposium in Boston.
The new chip meets the performance requirements for the Wideband CDMA (W- CDMA) system. W-CDMA (Wideband Code Division Multiple Access) is one of the standards approved for use in Third-Generation (3G) cellular systems, and provides data rates up to 2 Mbps (megabits per second) to a wireless terminal. This enables high-data rate services such as web browsing to be done on a wireless phone.
The device developed with Mitsubishi implements a direct-conversion receiver architecture. Direct-conversion is preferred over superheterodyne radios because IF (intermediate frequency) filters and other components are eliminated. This greatly reduces the size, power consumption, and cost of the radio section of a wireless terminal. Analog Devices was the first to develop a direct conversion radio integrated circuit (IC) with the introduction of the Othello(TM) direct-conversion radio IC for use in GSM (Global System for Mobile Communications) and GPRS (General Packet Radio Switch) applications.
"We are pleased with the results of this development program with Analog Devices", said Dr. Kenji Itoh, Section Manager, Next-Generation Radio Terminal Development Department of Mitsubishi Electric Corporation. "This IC allows us to make a very small W-CDMA terminal. We decided that we wanted to use the direct-conversion architecture, and we chose Analog Devices to develop this IC because of its expertise in direct conversion and excellent analog circuit design skills."
"Direct conversion radios have been the goal of radio designers for many years," said Christian Kermarrec, vice president, RF & wireless systems, Analog Devices and conference chair of this year's RFIC Symposium. "Today's advanced systems make direct-conversion difficult, but our system engineers and circuit designers have solved the tough problems, using our long history of high-performance analog design."
"This ASIC is part of our investment in 3G core technologies, and is the first output of several ongoing developments at both the component and system level," said Bob Scannell, business development manager for 3G products, Analog Devices. "We have teams at several of our wireless development sites working to leverage our experience in existing 2G (GSM and CDMA) systems into a leadership position in 3G."
The new BiCMOS IC described in the RFIC Conference integrates I (in-phase) and Q (quadrature) analog signal chains, including low-noise amplifiers, digitally-programmable gain stages with a total of 95 dB of variable gain in 1 dB steps, precision low-pass filters, and low-pass filter tuning control. In addition, the chip includes a log-amp-based Received-Signal-Strength Indicator (RSSI) detector with 70 dB of dynamic range and +/- 1.3 dB accuracy. Input signal range is from -102 to -26 dBVrms and supply current is 12 mA total for I and Q channels from a nominal 3 volt supply.
About Analog Devices in RF
ADI's growing family of innovative and high-performance RF products includes standard RF ICs and chipsets for CDMA and W-CDMA, as well as complete GSM solutions. Analog Devices employs state-of-the-art CMOS, BiCMOS and bipolar processes to create valued solutions for RF designers
About Mitsubishi Electric Corporation
With more than 75 years of experience in providing reliable, high-quality products to both corporate clients and general consumers all over the world, Mitsubishi Electric Corporation is a recognized world leader in the manufacture, marketing and sales of electrical and electronic equipment used in information processing and communications, space development and satellite communications, consumer electronics, industrial technology, energy, transportation and construction. With operations in 34 countries, Mitsubishi Electric Corporation recorded consolidated group sales of over US$31 billion in 1999, 37% of which was from the Information, Telecommunication and Electronic Systems and Devices segment. Additional information on Mitsubishi Electric Corporation is available at www.mitsubishielectric.com.
About Analog Devices
With revenues of $1.1 billion for the first half of fiscal 2000, Analog Devices is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. Headquartered in Norwood, Massachusetts, the company employs approximately 8,200 people worldwide and has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, the Philippines and Taiwan. Analog Devices' stock is listed on the New York Stock Exchange and the company is included in the S&P 500 Index.
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