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Software & CAD

HMC924LC5 and HMC925LC5 Upconverter/Transmitters

January 17, 2011
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New Upconverters feature Variable Gain in a compact 5 x 5 mm2 package

Chelmsford, MA, 09/09/2010 – Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, has introduced two new SMT packaged GaAs MMIC Upconverters with VGA which are ideal for point-to-point radio, satellite communications, test & measurement, and sensor applications from 5.5 to 16 GHz.

The HMC924LC5 is a GaAs MMIC I/Q upconverter with variable gain which operates from 10 to 16 GHz, delivers a small signal conversion gain of 15 dB, and has -30 dBc of sideband rejection. The HMC924LC5 provides a high Output IP3 of +14 dBm while maintaining LO/RF rejection of 15 dBc or better across the operating frequency band. The HMC925LC5 is a GaAs MMIC I/Q upconverter with variable gain which operates from 5.5 to 8.6 GHz, delivers a small signal conversion gain of 16.5 dB, and has -30 dBc of sideband rejection. The HMC925LC5 provides a high Output IP3 of +29 dBm while maintaining LO/RF rejection of 22 dBc or better across the operating frequency band.

The HMC924LC5 and HMC925LC5 utilize an RF amplifier preceded by an I/Q mixer where the LO is driven by a driver amplifier. IF1 and IF2 mixer inputs are provided and an external 90° hybrid is needed to select the required sideband. The I/Q mixer topology reduces the need for filtering of the unwanted sideband. The HMC924LC5 and HMC925LC5 are a much smaller alternative to hybrid style single sideband upconverter assemblies and they eliminate the need for wire bonding by allowing the use of surface mount manufacturing techniques. The HMC924LC5 and HMC925LC5 are each housed in a leadless RoHS compliant QFN 5 x 5 mm SMT ceramic package, and are specified for operation from -40 °C to +85 °C.

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 by clicking the link below our logo on this page.

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