- Buyers Guide
Military Microwaves Supplement
The company’s DC/DC converter has been integrated into the Palm VII™, the first hand-held organizer equipped with a wireless antenna that allows users to access the Internet, conduct e-commerce transactions, and send and receive instant messages. The company’s patented DC/DC converter design provides the Palm VII organizer with a small, highly efficient power management IC. Manufactured using GaAs MESFET technology, the DC/DC converter performs at high frequencies and uses an oscillator that operates outside of the audio band. Housed in an SOT-25 package, the converter measures less than 3 mm x 3 mm.
ANADIGICS Inc., Warren, NJ (908) 668-5000.
Fully Integrated Downconverter
The model C2304 fully integrated GaAs MMIC RFIC downconverter is designed for 2.4 GHz industrial, scientific and medical band applications where low cost and high volume manufacturing are primary concerns to original equipment manufacturers in the digital wireless communications markets. The downconverter features gain of 26 dB, noise figure of 4 dB, output IP3 of 27 dBm over a single voltage supply of +5. Housed in an industry-standard SOIC-14 package, the unit comes with separate RF amplifier, mixer/LO amplifier and IF amplifier cells.
Pacific Wireless, Aptos, CA (831) 419-5119.
MMIC Chipset Solution
The models CHV2241 VCO, CHV2242 multifunction chip and CHM2179 single-channel mixer comprise a complete MMIC chipset solution for frequency-modulated continuous wave radar. The CHV2241 provides a 38 GHz signal output, a frequency tuning range from 150 MHz to 38 GHz, phase noise better than -75 dBc/Hz at 100 kHz from carrier and output power of 7 dBm. The CHV2242 combines a reference oscillator at 19 GHz and a second-order harmonic mixer at 38 GHz. The CHM2179 offers conversion loss of 7.5 dB and noise figure of 13 dB at 1 MHz IF. The combination of the three parts provides radar manufacturers with optimized chip size, on-chip self-bias circuits, high level performance and a cost-effective solution.
United Monolithic Semiconductors (UMS), Orsay, France +33 (1) 69 33 03 35.
Small Footprint Synthesizer
The model PSS-861 small footprint synthesizer for wireless applications operates over the 860 to 925 MHz frequency range with a current of less than 35 mA and a 5 V supply. Phase noise is -102 dBc/Hz at 10 kHz offset and -122 dBc/Hz at 100 kHz offset from the center frequency. Harmonic suppression is better than 10 dBc and spur suppression is better than 65 dBc. Operating temperature is -40° to 85°C. Size: 0.75" x 0.75".
Princeton Electronic Systems Inc. (PES), Princeton, NJ (609) 275-6500.
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