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Technology Stocks : ADI: The SHARCs are circling! -- Ignore unavailable to you. Want to Upgrade?

To: Jim Oravetz who wrote (2626)	1/25/2001 5:48:19 PM
From: Jim Oravetz	Read Replies (1) \| Respond to of 2882

Looks like RF Micro is going after ADI's Othello chip: RF Micro Devices aims modulator IC at direct-conversion radio By Semiconductor Business News Jan 23, 2001 (10:53 AM) URL: semibiznews.com GREENSBORO, N.C.-- RF Micro Devices Inc. here rolled out the first in a series of multi-band, direct-quadrature modulator ICs aimed at serving direct-conversion radio architectures in new handsets, base stations and other wireless products. The new radio-frequency IC features a very low noise floor and includes gain control, said the company. "The development of the RF2483 represents a significant milestone in realizing cost-effective, multi-mode handsets, base stations and other wireless devices," said Alastair Upton, director of digital cellular products at RF Micro Devices. "By eliminating all intermediate frequencies, the direct-modulator approach significantly reduces the transmit architecture complexity, allowing for multi-mode, multi-standard operation with virtually no RF filters," he said. RF Micro Devices plans to incorporate the design approach into all its future chip sets for CDMA, W-CDMA, GSM, TDMA and EDGE wireless standards, Upton said. The company said the low-noise RF2483 exhibits carrier and sideband suppression, which is typically greater than 40 dBc at maximum gain, while maintaining 50-MHz input bandwidth and output IP3 of +19 dBm. The integrated circuit has a 35-dB gain control function that can be used to manage gain, noise and distortion budgets in the transmit path, said RF Micro Devices. The silicon-germanium (SiGe) chip uses a 2.7-volt power supply. It features 700-1,000/1,700-2,200 MHz output frequency range. Samples and fully assembled evaluation boards are now available with production quantities set for shipment in the second half of 2001. Jim