Mixers target radio, test and sensor applications

Edited by the Electronicstalk editorial team Feb 24, 2005

Hittite Microwave Corp has six new MMIC I/Q mixer dice and two SMT MMIC I/Q mixers that cover an RF/LO frequency range of 4 to 32GHz.

Hittite Microwave Corp has six new MMIC I/Q mixer dice (HMC520, HMC521, HMC522, HMC523, HMC524, HMC525) and two SMT MMIC I/Q mixers (HMC520LC4 and HMC522LC4) that cover an RF/LO frequency range of 4 to 32GHz.

These IC mixer products deliver up to 40dB of image rejection making them ideal for microwave radio, test and sensor applications.

These I/Q mixers offer wide IF bandwidth of up to 3.5GHz, conversion loss as low as 7.0dB, Input IP3 as high as +2dBm, and excellent RF to LO isolation of up to 50dB.

Compared with a hybrid based implementation, these I/Q MMIC mixers offer significantly reduced PCB area, consistent performance, and excellent amplitude and phase balance as a result of their monolithic construction.

For example, when configured as an image reject mixer using an external IF hybrid, the HMC522 provides greater than 35dB of image rejection.

Such excellent image rejection performance would be difficult if not impossible to achieve on a production basis using mixers, splitters and couplers in a hybrid MIC or PCB based approach, but MMIC IRMs provide these levels routinely.

Each of these mixers is fabricated on a mature, reliable and production qualified high volume GaAs MESFET process.

For applications where a surface mount package is desired, the HMC520LC4 and the HMC522LC4 are offered in a "Pb-free" and RoHS compliant, 4 x 4mm leadless SMT package.

All of these MMIC mixers will be available in the LC4 package in the second quarter of 2005.

Products are available from stock for sampling or sale from MRC Components.