HMC575LP4

Overview

The HMC575LP4 is an x2 active broadband frequency multiplier utilizing GaAs pHEMT technology. It operates within a frequency range of 6 GHz to 9 GHz and requires a single +5V supply at 90 mA. The device features high output power of +17 dBm with low input drive requirements ranging from -2 to +6 dBm. It provides 15 dBc isolation between fundamental and third harmonic frequencies and exhibits a phase noise of -140 dBc/Hz at 100 kHz offset. Packaged in a leadless RoHS-compliant QFN-24 SMT package measuring 4x4 mm, it supports operation temperatures from -40°C to +85°C with a power dissipation of 512 mW.

Feature Summary

• Active x2 frequency multiplication using GaAs pHEMT technology
• Broadband operation across 6 GHz to 9 GHz output range
• High output power capability with minimal input drive requirement
• Integrated buffer amplifier for improved signal integrity

Applications

• Microwave communication systems
• Test and measurement instrumentation
• Point-to-point microwave links
• Radar subsystems

Procurement Notes

Verify the specific suffix (e.g., LP4 vs LP4E) against the manufacturer's current datasheet to ensure correct package and compliance specifications. Confirm that the required operating temperature range aligns with the component's rated limits. Ensure design compatibility with the QFN-24 surface mount footprint and thermal dissipation requirements. Check for any regional distribution restrictions or obsolescence notices prior to finalizing procurement plans.

Selection Notes

Select this component when a compact, single-supply solution is needed for doubling frequencies in the 6-9 GHz band. It is suitable for designs requiring high output power without complex external filtering for harmonics. Consider the 90 mA current consumption and 512 mW power dissipation for thermal management. Evaluate the -140 dBc/Hz phase noise performance against system sensitivity requirements.

Part Context

The HMC575LP4 belongs to Analog Devices' HMC575 series of active frequency multipliers. These devices are designed to replace discrete multiplier circuits, offering reduced board space and improved performance consistency. The series utilizes robust GaAs pHEMT technology to deliver reliable operation in demanding RF environments.

FAQ

What is the typical phase noise performance at 100 kHz offset?

The HMC575LP4 typically achieves a phase noise of -140 dBc/Hz at a 100 kHz offset.

Does the device include an integrated buffer amplifier?

Yes, the HMC575LP4 integrates a buffer amplifier to improve isolation and output drive capability.