HMC385LP4ETR

Overview

The HMC385LP4ETR is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) from Analog Devices, designed for surface-mount applications. It operates within a frequency range of 2.25 GHz to 2.5 GHz. The device features an integrated buffer amplifier and resonators. Key electrical parameters include a tuning voltage range of 0 VDC to 10 VDC, a typical output power of 4.5 dBm, and a current consumption of 41 mA. It exhibits a phase noise of -115 dBc/Hz and a tuning sensitivity of -2 MHz/V.

Feature Summary

• Integrates GaAs InGaP HBT MMIC technology with built-in resonators and negative resistance circuits
• Includes an on-chip buffer amplifier for improved signal isolation and drive capability
• Supports standard 0-10 VDC control voltage interface for frequency tuning

Applications

• Wireless communication systems requiring stable local oscillator signals
• Test and measurement equipment needing precise frequency generation
• RF front-end modules in microwave transceivers

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix 'ETR' indicates the tape-and-reel packaging variant. Check for recent Product Change Notices (PCN) regarding manufacturing site updates or material substitutions. Ensure compatibility with RoHS directives if required by your supply chain standards. Validate lead times as availability may be subject to factory allocation.

Selection Notes

Select this component when a compact, high-frequency VCO solution is required for the 2.25-2.5 GHz band. Consider the integrated buffer amplifier if load isolation is critical to maintain frequency stability. Evaluate the -115 dBc/Hz phase noise specification against system jitter requirements. Ensure the 41 mA current draw fits within the power budget constraints of the target application design.

Part Context

This part belongs to the HMC385 series of monolithic microwave integrated circuits. It shares the same core die and functional specifications as the HMC385LP4, differing primarily in packaging format. The LP4 designation refers to the QFN package, while ETR specifies the reel configuration for automated assembly processes.

Replacement Considerations

HMC385LP4 is the direct equivalent with identical electrical performance but in cut-tape or tray packaging instead of reel.