LMX2571NJKR

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2571NJKR is a low-power RF frequency synthesizer from Texas Instruments, part of the PLLatinum family. It operates with a supply voltage range of 3.15 V to 3.45 V and supports input frequencies between 10 MHz and 30 MHz. The device generates output frequencies ranging from 60 MHz to 1.4 GHz using an internal VCO. It features a single circuit configuration housed in a 36-WFQFN exposed pad package (6x6 mm). The component functions within a temperature range of -40°C to +85°C and utilizes silicon technology for phase-locked loop applications.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a low-power architecture suitable for battery-operated wireless systems
• Supports programmable input multipliers to minimize integer boundary spurs
• Includes internal VCO with configurable buffer options for flexible output driving

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless local area network (WLAN) infrastructure
• Point-to-point microwave radio systems
• Software-defined radio platforms

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix NJKR against the manufacturer datasheet to confirm pinout and packaging details. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm that the 36-WFQFN package dimensions align with the target PCB footprint. Validate RoHS compliance status through official documentation before integration into regulated products.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a low-phase-noise synthesizer is required for frequencies up to 1.4 GHz. Compare power consumption metrics against alternative models if battery life is critical. Ensure the input reference frequency falls within the 10 MHz to 30 MHz range. Verify that the 36-pin QFN package is feasible for the assembly process.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The LMX2571NJKR belongs to the LMX2571 series of PLLatinum RF synthesizers. This series is designed for high-performance applications requiring low power consumption. The NJKR suffix typically denotes a specific reel or tape-and-reel packaging variant intended for surface-mount assembly. It shares core architectural features with other variants in the LMX2571 family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include LMX2571NJKT and LMX2571SRHHTEP. Verify package compatibility and electrical specifications before substitution. The SRHHTEP variant offers extended temperature ranges but may differ in packaging.