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v03.0209
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for: • VSAT & Microwave Radio • Radio Altimetry • Test Equipment & Industrial Controls • Military
Functional Diagram
12
HMC391LP4 / 391LP4E
MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz
Features
Pout: +5.0 dBm Phase Noise: -106 dBc/Hz @100 KHz No External Resonator Needed Single Supply: +3V @ 30 mA 24 Lead 4x4mm QFN Package: 9 mm2
General Description
The HMC391LP4 & HMC391LP4E are GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer amplifiers. Covering 3.9 to 4.45 GHz, the VCO’s phase noise performance is excellent over temperature, shock, vibration and process due to the oscillator’s monolithic structure. Power output is 5.