Analog Devices Inc./Maxim Integrated

The HMC143 chip is a miniature double-balanced mixer which can be used as an upconverter or downconverter. The chip utilizes a standard 1μm GaAs MESFET process. The HMC143 is identical to the HMC144 except that the layout is a mirror image designed to ease integration into image-reject mixer modules. Broadband operation and excellent isolations are provided by on-chip baluns, which require no external components and no DC bias. The design is similar to the HMC141 / HMC142 mixers but with an IF combiner in a double-balanced design, providing improved RF/IF isolation. These devices are much smaller and more reliable replacements to hybrid diode mixers.ApplicationsMicrowave Point-to-Point RadiosVSAT

The HMC144 devices are double-balanced MMIC mixers available in a chip (HMC144), a leadless Pb-free SMT package (HMC144LC4), and a hermetic SMT leadless package (HMC144LH5), all of which can be used as an upconverter or downconverter from 6 GHz to 20 Ghz. The HMC144 utilizes a standard 1 μm GaAs metal semiconductor field effect transistor (MESFET) process and is identical to the HMC143, except that the layout is a mirror image designed to ease integration into image reject mixer modules. Broadband operation and excellent isolations are provided by on-chip baluns, which require no external components and no dc bias. The HMC144 devices are more reliable alternatives to hybrid diode mixers, assuring consistent conversion loss and isolation performance over multiple and high volume production lots. The design of the HMC144 is similar to the HMC141 and HMC142 mixers, but with an IF combiner in a double-balanced design, providing improved RF/IF isolation. The HMC144LC4 and HMC144LH5 eliminate the need for wire bonding, allowing use of surface mount manufacturing techniques.ApplicationsMicrowave point-to-point radiosVery small aperture terminal (VSAT)Test equipment and sensorsMilitary end useTelecom infrastructureTest instrumentationMilitary radio, radar, and electronic countermeasure (ECM)Space systems

The HMC156A devices are miniature frequency doublers that are available in a monolithic microwave integrated circuit (MMIC) die (HMC156A), and a nonhermetic, ceramic surface mount package (HMC156AC8). Suppression of undesired fundamental and higher order harmonics is 38 dB typical with respect to input signal levels. The doubler uses the same diode/balun technology used in Hittite MMIC mixers, features small size, and requires no dc bias.ApplicationsWireless local loopLocal multipoint distribution systems (LMDS)Very small aperture terminal (VSAT)Point-to-point radiosUnlicensed National Information Infrastructure (U-NII) and high performance radio LAN (HiperLAN)Test equipment

The HMC168C8 is a miniature double-balanced mixer in a non-hermetic ceramic surface mount package that can be used as an upconverter, downconverter or biphase modulator. The device is a passive diode/ balun type mixer with high dynamic range. Noise figure is essentially equal to the conversion loss. The mixer can handle larger signal levels than most active mixers due to the high third order intercept. MMIC implementation provides exceptional balance in the circuit resulting in high LO/RF and LO/IF isolations and unit-to-unit consistency. This mixer has applications where small size and surface mount compatibility are important.ApplicationsMicrowave Point-to-Point Radios5.8 GHz ISM Band Circuits

The HMC170C8 is a miniature double-balanced mixer in a non-hermetic ceramic surface mount package that can be used as an upconverter, downconverter or biphase modulator. The device is a passive diode/ balun type mixer with high dynamic range. Noise figure is essentially equal to the conversion loss. The mixer can handle larger signal levels than most active mixers due to the high third order intercept. MMIC implementation provides exceptional balance in the circuit resulting in high LO/RF and LO/IF isolations and unit-to-unit consistency. This mixer has applications where small size and surface mount compatibility are important.ApplicationsMicrowave Point-to-PointRADARVSAT