HMC571LC5

Overview

The HMC571LC5 is a GaAs MMIC I/Q downconverter designed for the 21 GHz to 25 GHz frequency range. It features a small signal conversion gain of 9 dB and a noise figure of 3 dB. The device operates with an LO frequency of 14 GHz and provides an IF output up to 3.5 GHz. Electrical specifications include a P1dB compression point of -5 dBm, a supply voltage of 3.5 V, and a current consumption of 125 mA. The component is housed in a 32-lead LFCSP package.

Feature Summary

• Integrated I/Q receiver architecture for direct downconversion
• Compact leadless surface-mount package design
• GaAs MMIC technology for high-frequency performance

Applications

• Radar systems
• Point-to-point microwave links
• Electronic warfare applications

Procurement Notes

Verify the specific suffix LC5 to ensure compatibility with the required surface-mount footprint and RoHS compliance status. Confirm that the 32-lead LFCSP package matches the PCB layout requirements. Check for moisture sensitivity classification if reflow soldering is planned. Ensure the 3.5 V supply capability aligns with the system power budget.

Selection Notes

Select this component when operating within the 21-25 GHz band with a fixed 14 GHz local oscillator. Consider the 9 dB gain and 3 dB noise figure for link budget calculations. Evaluate the 125 mA current draw against thermal management constraints. Compare against the HMC570 series if lower frequency operation or different IF bandwidths are required.

Part Context

This part belongs to the HMC571G series of compact GaAs MMICs. It serves as a specialized solution for high-frequency I/Q demodulation. The LC5 variant denotes the specific leadless surface-mount packaging format. It complements other Analog Devices RF components by providing integrated downconversion capabilities without external mixers.

Replacement Considerations

• HMC571