HMC578LC3B

Overview

The HMC578LC3B is a x2 active broadband frequency multiplier utilizing GaAs PHEMT technology in a leadless RoHS compliant SMT package. It operates with an input frequency range of 12 GHz to 16.5 GHz, producing an output frequency range of 24 GHz to 33 GHz. The device requires an operating supply voltage between 4.5 V and 5.5 V, with a typical current consumption of 81 mA. It provides Fo isolation greater than 20 dBc and 3Fo isolation greater than 30 dBc.

Feature Summary

• Active x2 frequency multiplication using GaAs PHEMT technology
• Broadband operation covering 24 GHz to 33 GHz output frequencies
• High harmonic suppression with Fo and 3Fo isolations exceeding 20 dBc and 30 dBc respectively

Applications

• Point-to-point microwave radio links
• Local oscillator generation for radar systems
• Test and measurement equipment requiring high-frequency sources

Procurement Notes

Verify the specific suffix (e.g., LC3B) against the official Analog Devices datasheet to ensure compatibility with required packaging and performance specifications. Confirm that the leadless SMT package aligns with the target PCB footprint and thermal management requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact, active solution for doubling frequencies up to 33 GHz is required. Consider the GaAs PHEMT technology for its suitability in high-frequency applications. Ensure the design accommodates the necessary DC bias conditions and impedance matching networks for optimal harmonic generation and isolation performance.

Part Context

This part belongs to the HMC578G series of active multipliers from Analog Devices. It is designed as a surface-mount device, offering a compact alternative to discrete solutions. The family focuses on providing reliable frequency multiplication for wireless communication and radar subsystems where size and integration are critical constraints.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family or newer revisions. Verify if any updated versions offer improved isolation or power efficiency while maintaining the same 2x multiplication ratio and frequency range.