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Software & CAD / Subsystems and Systems

New SMT VCO Features F0 , F0/2 and Divide-by-4 Outputs

January 17, 2011
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Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, has introduced a new SMT MMIC VCO which provides low phase noise and high output power for point-to-point, point-to-multipoint, VSAT, military and test equipment applications from 14.25 to 15.65 GHz. Due to the oscillator’s monolithic structure, the HMC632LP5(E) GaAs HBT MMIC provides superior output power and phase noise performance over temperature and is an excellent choice where small size and repeatability are required. As with similar products in Hittites VCO family, this HMC632LP5(E) integrates resonators, negative resistance devices, and varactor diodes, and feature fundamental, RF/2, and divide-by-4 outputs. For added flexibility, the divide-by-4 prescaler function can be disabled to conserve current when not required. The HMC632LP5(E) is a fully integrated VCO that requires no external components, provides output power from +7 to +9 dBm, and delivers very low SSB phase noise of -107 dBc/Hz @ 100 kHz offset. This low-noise VCO accepts a tuning voltage from 1 V to 13 V, and provides an output frequency from 14.25 GHz to 15.65 GHz, making it suitable for driving the LO port of many of Hittite’s Double-Balanced Mixers, Image Reject Mixers, and I/Q Receiver products. The HMC632LP5(E) MMIC VCO is housed in a RoHS compliant, footprint compatible 5x5mm leadless SMT package, and consumes typically 350 mA of current from a single +5V supply. Samples and evaluation PC boards for all SMT packaged products are available from stock and can be ordered via the company’s e-commerce site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.

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