HMC394LP4E

Overview

The HMC394LP4E is a low-noise GaAs HBT programmable 5-bit counter manufactured by Analog Devices Inc. It operates in surface-mount QFN-24 packages and supports continuous frequency division ratios from N=2 to 32. The device functions across a DC to 2.2 GHz input frequency range, utilizing a 5 V operating supply voltage with a typical current consumption of 194 mA. It delivers an output power of 4 dBm and is rated for industrial temperatures between -55°C and +85°C.

Feature Summary

• Programmable 5-bit counter architecture enabling flexible frequency division
• Low noise Gallium Arsenide (GaAs) Heterojunction Bipolar Transistor technology
• Continuous division capability across a wide ratio range
• Leadless surface mount package design for compact integration

Applications

• Frequency synthesizer systems requiring precise division
• Phase-locked loop circuits
• RF signal processing chains
• Telecommunications infrastructure equipment

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix matches project requirements. Check datasheet revisions for updates. Validate RoHS compliance status before procurement. Ensure storage conditions meet manufacturer specifications to maintain reliability.

Selection Notes

Evaluate the 2.2 GHz maximum frequency against system requirements. Consider the 194 mA current draw for power budgeting. Assess the QFN-24 package for thermal management needs. Verify compatibility with existing control logic for programming the division ratio. Review temperature ratings for environmental suitability.

Part Context

This component belongs to the HMC394 series of RF integrated circuits designed for high-performance frequency division applications. It utilizes advanced GaAs HBT processes to achieve low phase noise and reliable operation in demanding RF environments. The series targets wireless communications and test equipment markets.

Replacement Considerations

Consult official Analog Devices documentation for qualified substitutes. Verify pinout and electrical parameter compatibility before substitution. Ensure replacement parts meet the same frequency and packaging specifications.