HMC391LP4E

Overview

The HMC391LP4E is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) with an integrated buffer amplifier, designed for surface-mount applications. It operates within a frequency range of 3.9 GHz to 4.45 GHz and delivers an output power of 5 dBm. The device requires a supply voltage between 2.75 V and 3.25 V, drawing a current of 39 mA. Frequency tuning is achieved via a control voltage ranging from 0 VDC to 10 VDC, providing a tuning sensitivity of 16 MHz/V. It features a phase noise of -106 dBc/Hz and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a negative resistance oscillator with an internal buffer amplifier for stable signal output
• Utilizes GaAs InGaP Heterojunction Bipolar Transistor (HBT) technology for high-frequency performance
• Provides low phase noise characteristics suitable for precision RF applications

Applications

• VSAT communication systems
• Wireless local loop infrastructure
• Point-to-point microwave links

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix 'E' indicates RoHS compliance status as per the manufacturer's documentation. Ensure that the QFN-24 package handling procedures align with industry standards for fine-pitch surface mount devices to prevent thermal or mechanical damage during assembly.

Selection Notes

Select this component when a compact, single-chip solution is required for the Ku-band frequency range. The integrated buffer amplifier simplifies circuit design by eliminating the need for external amplification stages. Consider the 24-pin QFN package for space-constrained PCB layouts. Evaluate the 39 mA current consumption against system power budgets and ensure the tuning voltage interface supports the specified 0-10 VDC range.

Part Context

This part belongs to the HMC391 series of monolithic microwave integrated circuits. It represents a specialized class of voltage-controlled oscillators designed for high-reliability wireless communications. The LP4E designation identifies the specific lead-free, RoHS-compliant variant housed in a 24-lead plastic quad flat no-lead package with an exposed pad for thermal management.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or cross-reference options based on specific electrical requirements.