384LP4E

      The 384LP4E is MMIC VCO w/ BUFFER designed for Low noise MMIC VCO w/Buffer Amplifi er for:Wireless Infrastructure,Industrial Controls,Test EquipmentMilitary.The 384LP4 has the following features including Pout: +3.5 dBm;Phase Noise: -112 dBc/Hz @100 KHz;No External Resonator Needed;Single Supply: 3V @ 35 mA;QFN Leadless SMT Package, 16 mm2.
      The HMC384LP4E are GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer amplifi ers. The VCO's phase noise performance is excellent over temperature, shock, vibration and process due to the oscillator's monolithic structure. Power output is 3.5 dBm typical from a 3.0V supply voltage. The voltage controlled oscillator is packaged in a low cost leadless QFN 4 x 4 mm surface mount package.
      The circuit board used in the fi nal application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A suffi cient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request.
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