DC944A: Demo Board for the LT5571 620MHz - 1100MHz High Linearity Direct Quadrature Modulator.

The HMC5805ALS6 is a GaAs pHEMT MMIC Distributed Power Amplifier which operates between DCand 40 GHz. The amplifier provides 11.5 dB of gain,29 dBm output IP3 and +24 dBm of output power at1 dB gain compression while requiring 175 mA froma +10 V supply. The HMC5805ALS6 is ideal for EW,ECM, Radar and test equipment applications. TheHMC5805ALS6 amplifier I/Os are internally matchedto 50 Ohms and the 6x6 mm SMT package is wellsuited for automated assembly techniques.Applications Test instrumentation Microwave radio and VSAT Military and space Telecom infrastructure Fiber optics

The HMC849ALP4CE is a high isolation non-reflective DC to 6 GHz GaAs pHEMT SPDT switch in a low cost leadless surface mount package. The switch is ideal for cellular/WiMAX/4G Infrastructure applications yielding up to 60 dB isolation, low 0.8 dB insertion loss and +52 dBm input IP3. Power handling is excellent up through the 5 - 6 GHz WiMAX band with the switch offering a P1dB compression point of +31 dBm. On-chip circuitry allows a single positive voltage control of 0/+3V or 0/+5V at very low DC currents. An enable input (EN) set to logic high will put the switch in an 'all off' state.APPLICATIONS Cellular/4G Infrastructure WiMAX, WiBro & Fixed Wireless Automotive Telematics Mobile Radio Test Equipment

The HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 ? and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.The device incorporates a driver that provides both serial and parallel control of the attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.The HMC1122 comes in a RoHS compliant, compact, 4 mm ? 4 mm LFCSP package, and is pin compatible to the HMC624A.A fully populated evaluation board is available. Applications Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors IF and RF designs

The ADMV1550 is a general-purpose, double balanced mixer in a leadless, RoHS compliant, surface-mount technology (SMT) package that can be used as an upconverter or down-converter between 15 GHz and 67 GHz. The wide bandwidth from 0 GHz to 20 GHz on the intermediate frequency (IF) port allows flexible frequency planning to avoid spurious products. This mixer is fabricated in a gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC) process and requires no external components or matching circuitry. The ADMV1550 provides excellent local oscillator (LO) to radio frequency (RF) and LO to IF suppression due to optimized balun structures. The mixer operates with an LO amplitude above 15 dBm. The RoHS compliant ADMV1550 eliminates the need for wire bonding, allowing the use of surface-mount manufacturing techniques.APPLICATIONSMicrowave and very small aperture terminal (VSAT) radiosTest equipmentMilitary electronic warfare (EW)Electronic countermeasure (ECM)Command, control, communications, and intelligence (C3I)

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