HMC431LP4E

Overview

The HMC431LP4E is a monolithic microwave integrated circuit (MMIC) voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It operates within the frequency range of 5.5 GHz to 6.1 GHz and integrates an output buffer amplifier. The device utilizes a single positive supply voltage ranging from 2.75 V to 3.25 V, with a typical current consumption of 34 mA. It features a tuning voltage range of 0 VDC to 10 VDC and delivers an output power of 2 dBm. Key performance metrics include a phase noise of -102 dBc/Hz and a tuning sensitivity of 16 MHz/V. The component is housed in a compact 24-lead QFN package measuring 4 mm x 4 mm, designed for surface-mount applications.

Feature Summary

• Integrates a voltage-controlled oscillator core with a dedicated buffer amplifier on a single MMIC die
• Operates across the 5.5 GHz to 6.1 GHz frequency band using a single positive supply voltage
• Provides low phase noise performance suitable for precision RF signal generation
• Housed in a small form factor 24-lead QFN package for efficient PCB layout

Applications

• Wireless local area network (WLAN) systems operating in the 5 GHz band
• Point-to-point and point-to-multipoint radio links
• Satellite communication ground stations
• Test and measurement instrumentation requiring stable RF sources

Procurement Notes

Verify the specific ordering suffix and tape/reel specifications against the official Analog Devices datasheet before procurement. Confirm that the intended application environment falls within the specified temperature range and supply voltage limits. Ensure compatibility with the 24-QFN footprint and thermal requirements during the design-in phase. Cross-reference the manufacturer part number to avoid confusion with similar family members.

Selection Notes

Select this component when a compact, single-supply VCO solution is required for the 5.5–6.1 GHz range. Consider the integrated buffer amplifier as a key differentiator that simplifies downstream matching networks. Evaluate the -102 dBc/Hz phase noise specification against system jitter requirements. Compare the 34 mA current draw against power budget constraints relative to other available MMIC VCOs in the same frequency class.

Part Context

The HMC431LP4E belongs to the HMC431 series of MMIC VCOs produced by Analog Devices. This series targets general-purpose RF applications requiring high integration and low profile. The device represents a shift towards highly integrated solutions that combine oscillation and buffering functions, reducing the component count typically needed in discrete VCO designs for wireless infrastructure.

Replacement Considerations

Consult the official Analog Devices replacement guide for verified substitute part numbers. Do not assume direct pin-to-pin compatibility with other VCOs without verifying electrical parameters and thermal characteristics.