HMC733LC4B

Overview

The HMC733LC4B is a wideband MMIC Voltage Controlled Oscillator operating from 10 GHz to 20 GHz. It integrates the resonator, negative resistance device, and varactor diode within a single chip. The component features an integrated buffer amplifier and operates on a supply voltage between 4.75 V and 5.25 V. It draws 70 mA of current and provides an output power of 3 dBm. The tuning voltage range spans from -250 mVDC to 23 VDC with a sensitivity of 90 MHz/V. Secondary harmonics are suppressed by at least 20 dBc, and phase noise is specified at -60 dBc/Hz.

Feature Summary

• Integrates resonator, negative resistance device, and varactor diode for compact design
• Includes an internal buffer amplifier for signal isolation
• Wide frequency coverage in the W-band spectrum

Applications

• Point-to-point microwave radio links
• Electronic warfare systems
• Radar subsystems

Procurement Notes

Verify authenticity through authorized Analog Devices channels due to limited availability status. Confirm package integrity as the component is moisture sensitive. Ensure compatibility with QFN-24 footprint requirements during procurement planning. Check for specific lot traceability if required for military or aerospace qualification standards.

Selection Notes

Select this component when W-band frequency generation is required without external resonators. The integrated buffer simplifies PCB layout compared to bare oscillator dies. Consider the 70 mA current draw for thermal management and power budget calculations. Verify that the 23 V tuning voltage capability matches the available control circuitry.

Part Context

This part belongs to the HMC733 series of wideband MMIC VCOs manufactured by Analog Devices. It shares the QFN-24 surface mount package form factor common to this product line. The device represents a monolithic integration approach replacing discrete LC tank circuits with a single semiconductor solution.

Replacement Considerations

HMC732LC4B offers similar functionality but covers the 6 GHz to 12 GHz range instead of 10 GHz to 20 GHz.