HMC557LC4TR

RF Mixers Overview

The HMC557LC4TR is a fundamental frequency RF mixer integrated circuit manufactured by Analog Devices Inc. Designed for general-purpose up/down conversion, it operates within a wide frequency range of 2.5 GHz to 7 GHz. The component utilizes a 24-lead CQFN package measuring 4x4 mm with exposed pads for surface mount installation. It features a noise coefficient of 8.5 dB and supports WiMax applications. The device is RoHS3 compliant and has a moisture sensitivity level of 3.

RF Mixers Feature Summary

• Supports fundamental frequency mixing for general-purpose up/down conversion
• Wide operational bandwidth covering 2.5 GHz to 7 GHz
• Compact 24-lead CQFN surface-mount package design

RF Mixers Applications

• WiMax communication systems
• General-purpose RF signal chain up/down conversion
• Broadband wireless infrastructure equipment

RF Mixers Procurement Notes

Verify the specific suffix LC4 against the official Analog Devices datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure compatibility with the 24-CQFN footprint during PCB layout. Confirm RoHS3 compliance status if environmental regulations apply to the final assembly. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

RF Mixers Selection Notes

Select this component when a wideband fundamental mixer is required for frequencies between 2.5 GHz and 7 GHz. The 4x4 mm package offers a compact solution for space-constrained designs. Consider the 8.5 dB noise figure for system-level link budget calculations. This part is suitable for applications requiring general-purpose mixing capabilities without active biasing complexity.

RF Mixers Part Context

The HMC557LC4TR belongs to the HMC557 family of passive mixers from Analog Devices. It serves as a modern replacement for older chip-style variants like the discontinued HMC557, offering improved packaging and integration. The LC4 suffix denotes the specific leadless QFN package configuration, distinguishing it from other form factors in the same functional series.

RF Mixers Replacement Considerations

The original HMC557 chip variant is discontinued. The HMC557LC4TR serves as the primary surface-mount alternative. Verify that the transition from chip to CQFN package does not require significant impedance matching adjustments in the existing circuit layout.