HMC390LP4E

Overview

The HMC390LP4E is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) from Analog Devices, designed for VSAT applications. It operates within the 3.55 GHz to 3.9 GHz frequency range and features an integrated buffer amplifier. The device requires a tuning voltage of 0 VDC to 10 VDC and draws 47 mA at a supply voltage of 3 V. It delivers an output power of 4.7 dBm with a phase noise of -112 dBc/Hz and a tuning sensitivity of 5 MHz/V. Packaged in a 24-lead QFN (4mm x 4mm), it supports surface mount installation.

Feature Summary

• Integrates resonator, negative resistance device, and varactor diode into a single MMIC structure
• Includes an on-chip buffer amplifier to isolate the oscillator core from load variations
• Utilizes GaAs InGaP HBT technology for high-performance RF operation

Applications

• VSAT communication systems
• Point-to-point microwave links
• Local multipoint distribution systems (LMDS)

Procurement Notes

Verify component authenticity through authorized channels due to limited availability status reported by distributors. Confirm RoHS compliance details as specifications may vary by production batch. Ensure proper ESD handling protocols are followed during storage and assembly. Validate that the specific suffix matches the required package and tape/reel configuration for your manufacturing line.

Selection Notes

Select this component when a compact, low-power VCO solution is required for Ku-band applications. The integrated buffer simplifies circuit design by reducing the need for external isolation stages. Consider the 24-QFN footprint for space-constrained PCB layouts. Evaluate thermal management requirements given the 47 mA current consumption and small package size.

Part Context

The HMC390LP4E belongs to the HMC390 series of monolithic microwave integrated circuits. It is part of Analog Devices' portfolio of RF solutions targeting satellite communications. The LP4E designation indicates the lead-free, halogen-free QFN package variant. This series complements other Hittite/Analog Devices VCOs covering adjacent frequency bands.

Replacement Considerations

The HMC390LP4ETR is the reel-pack equivalent of the cut-tape HMC390LP4E. For different frequency ranges within the same family, consider the HMC391LP4E which covers 3.9 GHz to 4.45 GHz. Verify pinout compatibility before substituting with other VCOs in the HMC3xx series.