HMC429LP4E

Overview

The HMC429LP4E is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) with an integrated buffer amplifier, manufactured by Analog Devices Inc. It operates within the frequency range of 4.45 GHz to 5.0 GHz and utilizes a QFN-24 package measuring 4 mm x 4 mm. The device requires a supply voltage between 2.75 V and 3.25 V, drawing a current of 38 mA. It features a tuning voltage range of 0 VDC to 10 VDC and delivers an output power of 4 dBm. Key performance metrics include a phase noise of -105 dBc/Hz and a tuning sensitivity of 14 MHz/V. It functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Integrates a negative resistance oscillator circuit with a dedicated buffer amplifier for stable signal output
• Utilizes GaAs InGaP Heterojunction Bipolar Transistor (HBT) technology for high-frequency performance
• Incorporates integrated resonators to minimize external component requirements

Applications

• Wireless communication systems requiring local oscillation
• RF test and measurement equipment
• Point-to-point microwave links

Procurement Notes

Verify the specific suffix 'E' against official documentation to confirm RoHS compliance status. Confirm that the QFN-24 package dimensions match your PCB footprint design. Ensure the operating temperature range aligns with your environmental specifications. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin configurations before finalizing procurement.

Selection Notes

Select this component when a low-noise VCO with an integrated buffer is required in the 4.45–5.0 GHz range. Consider the 38 mA current draw and 2.75–3.25 V supply constraints during power budgeting. Evaluate the -105 dBc/Hz phase noise against system sensitivity requirements. Compare the 14 MHz/V tuning sensitivity with your loop filter design capabilities.

Part Context

This part belongs to the HMC429 series of MMIC VCOs from Analog Devices. It shares the same core architecture as the HMC429LP4 variant but may differ in packaging or compliance specifications. The series is designed for applications needing compact, high-performance oscillation solutions in SMT formats.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.