HP Offers High Dynamic Range, Low-noise Isolated-collector Silicon Bipolar Junction Transistor For RF Applications.SAN JOSE San Jose, city, United States San Jose (sănəzā`, săn hōzā`), city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850. , Calif.--(BUSINESS WIRE)--Feb. 22, 1999-- SOT-343 Device Features High Linearity, Low Noise for Medium-power and Low-noise Applications up to 2.5GHz Hewlett-Packard Company today introduced an isolated-collector silicon bipolar junction transistor, the latest member of HP's transistor family fabricated using a 35GHz transition frequency. The announcement was made here at the Wireless Symposium/Portable by Design Conference, which runs Feb. 22 - 26 at the San Jose Convention Center. This high-performance transistor, HBFP-0450, is competitive with Siemens BFP BFP n. slang for bona fide purchaser, which means someone who purchased something (e.g. a bond, a promissory note, or jewelry) with no reason to be suspicious that it was stolen, belonged to someone else, or was subject to another party's claim. series transistors, providing comparable gain; noise figure and linearity performance; and identical package, footprint and pin configurations. The transistor is supplied in the SOT-343 surface-mount plastic package. The new transistor can be used as an amplifier in wireless communications wireless communications System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data. systems and other applications operating in related frequency bands, from 900GHz to approximately 2.5GHz. For example, it can be used as a driver or buffer amplifier An analog device that is typically used for impedance matching and signal isolation. For example, a sound card typically uses buffer amps at most of its input and output ports. for cellular, PCS (1) (Personal Communications Services) Refers to wireless services that emerged after the U.S. government auctioned commercial licenses in 1994 and 1995. This radio spectrum in the 1. and cordless telephone A cordless telephone or portable telephone is a telephone with a wireless handset which communicates via radio waves with a base station connected to a fixed telephone line (POTS) and can only be operated near (typically within 100 meters or 328 ft from) its base station handsets and some base stations and as a low-noise amplifier The low noise amplifier (LNA) is a special type of electronic amplifier or amplifier used in communication systems to amplify very weak signals captured by an antenna. It is often located very close to the antenna. with high linearity. The combination of linearity and low noise figure makes this transistor ideal in wireless telephony telephony without wires, usually employing electric waves of high frequency emitted from an oscillator or generator, as in wireless telegraphy. A telephone transmitter causes fluctuations in these waves, it being the fluctuations only which affect the receiver. See also: Wireless as it provides the sensitivity required for good reception under marginal signal conditions. At 1.8GHz, the HBFP-0450, optimized for low-current operation at only 10mA with 2V bias, provides a minimum noise figure of 1.2dB and associated gain of 13dB. With 50mA, 3V bias it provides +19dBm output power (1dB gain compression Gain compression in an electronic amplifier circuit is a reduction in 'differential' or 'slope' gain caused by nonlinearity of the transfer characteristic of the amplifying device. ). The exceptional combination of linearity and noise figure offered by these transistors are the result of a 35GHz transition-frequency, self-aligned, double-polysilicon, buried-layer diffusion process Diffusion process A conception of the way a stock's price changes that assumes that the price takes on all intermediate values. , which minimizes base-to-collector feedback capacitance and base resistance. The design puts the transistor collector on the top side of the chip, which reduces parasitic base-to-collector capacitance. These transistors are available in bulk antistatic bags of 100 pieces, on 7-inch reels containing 3,000 devices and on 13-inch reels containing 10,000 devices. U.S. Pricing and Availability -0- Units: 10,000 to 24,999 HBFP-0450 $0.51 per unit Information about HP's RF and microwave components can be found on the World Wide Web at http://www.hp.com/go/rf. About HP Hewlett-Packard Company is a leading global provider of computing, Internet and intranet solutions, services, communications products and measurement solutions, all of which are recognized for excellence in quality and support. HP has 122,800 employees and had revenue of $47.1 billion in its 1998 fiscal year. Information about HP, its products and the company's Year 2000 program can be found on the World Wide Web at http://www.hp.com. NOTE TO THE EDITOR: Sales information may be obtained by calling 1-800/537-7715, ext. 10067. Please do NOT use the editor contact or corporate telephone numbers for sales information. Information in this release applies specifically to products available in the United States. Product availability and specifications may vary in non-U.S. markets. If you choose to review these items, your readers will receive the quickest response to their inquiries by mailing them to Hewlett-Packard Company Inquiries, 5301 Stevens Creek Blvd., P.O. Box 58059, Santa Clara, CA 95052-8059. |
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