HMC734LP5

Overview

The HMC734LP5 is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) from Analog Devices Inc. It operates in the 8.6 GHz to 10.2 GHz frequency range and integrates a divide-by-4 prescaler, providing a secondary output at Fo/4 (2.15–2.55 GHz). The device features a typical phase noise of -100 dBc/Hz at 100 kHz offset and delivers +17 dBm power output. It requires no external resonators or matching components. Key electrical parameters include a tuning voltage range of 1 VDC to 13 VDC, a supply voltage of 4.75 V to 5.25 V, and a current consumption of 240 mA. The component is housed in a QFN-32 package measuring 5.1 mm x 5.1 mm x 1 mm.

Feature Summary

• Integrates a divide-by-4 frequency divider for dual-output capability
• Monolithic structure eliminates need for external resonators or matching networks
• Excellent phase noise stability across temperature, shock, and process variations
• Prescaler function can be disabled to conserve current when not required

Applications

• Point-to-Point/Multi-Point Radio Systems
• SATCOM Applications
• Test Equipment & Industrial Controls
• Military End-Use Systems

Procurement Notes

Verify the specific suffix (e.g., LP5 vs. LP5E) against the manufacturer's datasheet to confirm lead-free status and RoHS compliance details. Ensure the ordering part number matches the exact frequency range and package variant required for the design. Confirm availability through authorized distributors as supply status may vary. Cross-reference the ECAD model with PCB footprint requirements prior to procurement.

Selection Notes

Select this component for applications requiring high-frequency synthesis with integrated division capabilities. The monolithic design simplifies layout by removing external passive components. Consider the 240 mA current draw and thermal management within the QFN-32 package. Verify that the 1 VDC to 13 VDC tuning voltage range aligns with the system's control interface. Evaluate the -100 dBc/Hz phase noise performance against system sensitivity requirements.

Part Context

The HMC734LP5 belongs to the Hittite Microwave (now Analog Devices) HMC73x series of MMIC VCOs. These devices utilize GaAs InGaP HBT technology to provide robust performance in microwave frequencies. The series is characterized by its integration of active and passive elements on a single die, offering compact solutions for RF front-end designs. This specific model focuses on the 8.6–10.2 GHz band with built-in frequency division.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or cross-references.