HMC738LP4E

Overview

The HMC738LP4E is a monolithic microwave integrated circuit (MMIC) voltage-controlled oscillator (VCO) manufactured by Analog Devices. It operates within a frequency range of 20.9 GHz to 23.9 GHz and utilizes a 5 VDC supply voltage with a maximum rating of 5.25 V and minimum of 4.75 V. The device draws a current rating of 220 mA and features a tuning voltage range from 1 VDC to 13 VDC. Key performance metrics include a phase noise type of -95 dBc/Hz and a tuning sensitivity of -90 MHz/V. It is housed in a 24-pin QFN package.

Feature Summary

• Integrates triple output configurations including standard, divide-by-2, and divide-by-16 signals for flexible system integration.
• Utilizes MMIC technology to deliver high-frequency stability and compact form factor suitable for RF applications.

Applications

• Wireless communication systems requiring stable local oscillation sources
• Test and measurement equipment needing precise frequency generation
• Satellite communication terminals operating in Ku-band frequencies

Procurement Notes

Verify the specific suffix LP4E against the official Analog Devices datasheet to confirm pinout compatibility and thermal pad requirements. Ensure that the design supports the required 5V supply tolerance and 1-13V tuning range. Cross-reference the 24-pin QFN footprint dimensions with your PCB layout guidelines before finalizing procurement decisions.

Selection Notes

Select this component when a single-chip solution providing multiple frequency divisions is required to reduce board space and component count. Consider the -95 dBc/Hz phase noise specification relative to system jitter requirements. Evaluate the 220 mA current draw against available power budget constraints and thermal management capabilities within the target enclosure.

Part Context

This part belongs to the HMC738 series of MMIC VCOs designed for high-performance RF applications. It serves as a specialized oscillator solution offering integrated frequency division capabilities, distinguishing it from standard VCOs that require external dividers. The series targets markets demanding compact, low-noise signal sources for modern wireless infrastructure.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or evaluate the HMC739LP4E if higher frequency operation up to 26.8 GHz is acceptable, noting differences in phase noise and tuning sensitivity.