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Amplifiers DC - 4 GHz HBT GaAs MMIC Amplifier The model AHB107 monolithic heterojunction bipolar transistor (HBT) Darlington amplifier is designed for use as a general-purpose 50 W gain block. External DC blocking capacitors determine low frequency response and an external bias resistor provides bias voltage flexibility. Features include...

Devices MESFET The NEC model NE72118 MESFET delivers power gain performance of 5.5 dB at 12 GHz, making it suitable for use as the oscillator stage in low noise block applications for direct-broadcast satellite receivers. It is housed in a miniature, four-pin SOT-343 plastic surface-mount package and can be...

Integrated Circuit Direct-conversion Receiver ICs The model ZIF100 direct-conversion receiver and the model ZIF600 demodulator and pager synthesizer can interface directly to a FLEX™ one-way decoder IC. The direct-conversion design incorporates on-chip filters, a synthesizer, automatic gain control and automatic frequency control to provide manufacturers with a highly integrated...

Sources 800 MHz VCOs The models PVF-861 and PV-800 VCOs are designed for wireless private branch exchange, wide-area network, cordless telephones and cellular applications. The small footprint model PVF-861 measures 0.3" x 0.3" x 0.16" and covers 860 to 925 MHz with a 0 to 4.5 V tuning voltage...

Subsystems Ku-band Upconverter The model AS2570 complete upconverter subsystem is designed to be mounted at the antenna of Ku-band satellite uplink terminals for direct transmission of low rate data. The components that normally would make up the rack-mounted unit have been integrated into one package using the waveguide bandpass...

  Software Automated Test Software The model CATS-98A CDMA automated test software is designed for total testing of mobile receivers and transmitters as specified in IS-98A. The software integrates the company's WIS-98A wireless impairment system and a base station simulator. The software also simplifies complex mobile telephone tests, including...

News From Washington Army Seeks Projectile Tracking System As reported in Commerce Business Daily, a market survey is being conducted by the US Army TACOM-ARDEC procurement network for a projectile tracking system. The survey requests descriptions of tracking equipment and data that supports the projectile tracking capability using interferometric...

International Report Philips Develops Ultra-fast OTP Memory Process for Microcontrollers Philips Research has developed an ultra-fast one-time programmable (OTP) memory that, when applied to sister company Philips Semiconductors’ 8-bit model 80C51 and 16-bit model XA microcontrollers, allows the creation of electronically programmable read-only memory results in less than 60...

The Commercial Market Next-generation TDMA/CDMA Wireless Standard Development is Underway Motorola has announced plans to work with Siemens AG and four other Global System for Mobile communications (GSM) manufacturers to develop a next-generation wireless standard for Europe that combines elements of both code-division multiple access (CDMA) and time-division multiple...

The Book End Understanding Digital Signal Processing Richard G. Lyons Addison-Wesley Publishing Co. 517 pages; $55.90 Digital signal processing (DSP) provides the basis for most modern signal analysis and communications. This book breaks down the DSP mystery and provides easy-to-follow explanations and illustrations to help the reader understand the...