HMC959LC3

Overview

The HMC959LC3 is a divide-by-4 frequency divider and prescaler from Analog Devices Inc., designed for high-frequency RF applications. It operates across a frequency range of 0 Hz to 26 GHz, supporting both DC and microwave signals. The device features a built-in reset function and programmable output voltage levels. It is housed in a 16-LFCQFN (3x3 mm) surface-mount package with exposed pads for thermal management. The component requires a negative supply voltage, typically -3.3 V, with an operating range of -3.0 V to -3.6 V. It draws approximately 85 mA of current and includes differential or single-ended output options.

Feature Summary

• Divides input frequency by a fixed ratio of four
• Operates from DC up to 26 GHz maximum frequency
• Includes integrated reset control functionality
• Supports programmable output voltage levels

Applications

• RF signal chain frequency synthesis
• Microwave measurement equipment
• Wireless communication systems
• Test and instrumentation devices

Procurement Notes

Verify the specific suffix (LC3TR vs LC3) against the manufacturer's official datasheet to confirm packaging type and availability status. Confirm that the negative supply voltage requirements (-3.3V typical) align with your system design. Ensure ESD protection measures are implemented during handling due to moisture sensitivity level 3. Cross-reference the pinout diagram in the latest ADI documentation to match PCB layout requirements accurately before procurement.

Selection Notes

Select this component when a fixed divide-by-4 ratio is required at frequencies up to 26 GHz. Consider the 16-pin LFCQFN package size for space-constrained designs. Evaluate the need for the reset feature if synchronous control is necessary in the application. Compare power consumption of 85 mA against system budget constraints. Verify compatibility with negative supply rails commonly used in RF circuits.

Part Context

The HMC959 belongs to Analog Devices' HMC series of RF and microwave integrated circuits. This family focuses on high-performance signal processing components for wireless infrastructure and test equipment. The HMC959 specifically addresses frequency division needs in high-speed digital and RF domains. It complements other ADI products like mixers and amplifiers in complete RF front-end solutions.

Replacement Considerations

Check Analog Devices' official obsolescence notices for direct replacements. No public substitute part numbers are confirmed in available documentation. Consult ADI sales support for legacy component alternatives if discontinuation occurs.