HMC444LP4E

Overview

The HMC444LP4E is an active miniature x8 frequency multiplier utilizing InGaP GaAs HBT technology. It operates within a 9.9 GHz to 11.2 GHz output frequency range and accepts input frequencies up to 11.2 GHz. The device requires a supply voltage between 4.5 V and 5.5 V, drawing a typical operating current of 68 mA. It is housed in a QFN-24 surface-mount package with a maximum power dissipation of 650 mW. The component supports an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates x8 multiplication capability using InGaP GaAs HBT MMIC technology for high-frequency performance.
• Designed for surface-mount applications in a compact leadless QFN-24 package.
• Operates as an active multiplier with integrated biasing requirements.

Applications

• Microwave communication systems requiring frequency synthesis
• Test and measurement instrumentation equipment
• Radar subsystems

Procurement Notes

Verify the specific suffix (LP4E) against official Analog Devices documentation to confirm package type and RoHS compliance status. Ensure that the ordering part number matches the required tape-and-reel or cut-tape configuration. Cross-reference the datasheet revision date to confirm technical specifications have not changed due to product change notifications.

Selection Notes

Select this component when an x8 multiplication factor is required within the 9.9 GHz to 11.2 GHz output band. The GaAs HBT technology offers distinct advantages for active microwave integration compared to standard silicon solutions. Consider the 68 mA supply current and 650 mW thermal dissipation limits during PCB layout and thermal management planning.

Part Context

This part belongs to the HMC444 series of active frequency multipliers manufactured by Analog Devices. It is designed for use in wireless and RF integrated circuit applications where compact size and high-frequency operation are critical. The LP4E designation indicates the specific leadless surface-mount package variant.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices for potential cross-reference options if this specific SMT variant is unavailable.