Hittite Microwave, has introduced two GaAs MMIC mixers that are intended for point-to-point and point-to-multipoint radios, VSAT, telecom, test instrumentation, radar, ECM and space applications from 6 to 34 GHz. The HMC144LH5 is a double-balanced MMIC mixer that can be used as an upconverter or downconverter from 6 to 20 GHz and requires no external components or DC biasing. This device features a wide IF bandwidth of DC to 3 GHz, up to 35 dB of LO/RF isolation and input IP3 of +24 dBm. A highly reliable alternative to hybrid diode mixers, the HMC144LH5 may be upscreened to MIL-PRF-38535 for Class B or Class S applications. The HMC338LC3B is a compact 24 to 34 GHz sub-harmonically pumped MMIC mixer with an integrated LO amplifier. It features a wide IF bandwidth of DC to 3 GHz, 2LO to RF isolation of 40 dB, and a LO amplifier with a nominal -5 dBm drive requirement. It consumes only 30 mA from a 3 V supply. Both are housed in RoHS-compliant ceramic SMT leadless packages.
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