Hittite Microwave Corporation, represented by ASD Technology in Australia and New Zealand has released nine new GaAs MMIC receiver products. Covering the microwave radio bands from 7 to 28 GHz, Hittite’s first microwave receiver MMICs integrate LNAs, I/Q mixers and LO amplifier/multipliers to provide a compact solution, with a high level of performance.
The HMC570, HMC571, and HMC572 MMIC receivers are offered in bare die form and each is comprised of two double-balanced mixer cells, a 90 degree hybrid, a LO x2 multiplier, and a LNA. The HMC570 operates over the 17 to 21 GHz frequency range, the HMC571 operates over the 21 to 25 GHz frequency range, and the HMC572 operates over the 24 to 28 GHz band.
These bare die products also provide a small signal conversion gain of between 8 and 10 dB, with a noise figure as low as 3 dB, and up to 24 dB of image rejection across their respective frequency bands. Due to the image reject structure of the HMC570 , HMC571 and HMC572 there is no requirement to provide passive filtering, providing a highly compact solution. The LNA exhibits state-of-the-art noise figure in combination with high IP3 of up to +5 dBm, providing an unbeatable combination for SDH radio applications.
For applications where a SMT RoHS compliant package is required, the HMC570LC5, HMC571LC5 , HMC572LC5, HMC567LC5, HMC568LC5 and HMC569LC5 MMIC Receivers are ideal. The HMC570LC5, HMC571LC5 and HMC572LC5 provide IIP3 values up to +5 dBm, which also makes them especially suitable for use within high dynamic range receivers in point-to-point/multipoint radios, military, and satellite communications applications.
The HMC567LC5, HMC568LC5 and HMC569LC5 are comprised of a LNA followed by an image reject mixer which is driven by an LO buffer amplifier. The HMC567LC5 operates over the 7 to 9 GHz frequency range, the HMC568LC5 operates over the 9 to 12 GHz frequency range, and the HMC569LC5 operates over the 12 to 16 GHz band. These compact MMIC Receivers provide small signal conversion gain of up to 14 dB with a noise figure as low as 2 dB, and up to 35 dB of image rejection across their respective frequency bands.