LMX2581ESQE/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2581ESQE/NOPB is a wideband frequency synthesizer manufactured by Texas Instruments, designed for high-performance RF applications. It features an integrated voltage-controlled oscillator (VCO) and operates within a supply voltage range of 3.15 V to 3.45 V. The device supports a maximum output frequency of 3.76 GHz and functions reliably across an industrial temperature range from -40°C to +85°C. Packaged in a compact 32-WQFN (5x5 mm) exposed pad format, it draws approximately 135 mA during operation. This component is classified under clock synthesizers and jitter cleaners, suitable for demanding wireless infrastructure environments.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a wideband fractional-N PLL with an internal VCO to minimize external component count.
• Supports differential outputs for improved signal integrity in high-frequency designs.
• Includes programmable dividers and multipliers for flexible frequency generation capabilities.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless infrastructure base stations
• Point-to-point microwave radio systems
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'E' against official Texas Instruments documentation to confirm any distinct qualification or environmental ratings compared to standard variants. Ensure compatibility with the LMX2581EVAL/NOPB development kit if evaluation is required. Confirm moisture sensitivity level handling procedures prior to assembly.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when a single-chip solution for frequencies up to 3.76 GHz is required. The 32-WQFN package offers a small footprint for space-constrained PCB layouts. Verify that the 3.15 V to 3.45 V supply range aligns with the system power architecture. Consider the 135 mA current consumption for thermal management planning.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMX2581 family of wideband frequency synthesizers. It shares core architectural similarities with other members like the LMX2581SQ/NOPB but may differ in specific qualification grades or testing standards indicated by the suffix. The family is generally utilized in RF front-end modules requiring low phase noise and high spectral purity.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The LMX2581SQ/NOPB is a related variant within the same product family. Verify pinout and electrical specifications before substitution. No other direct public substitute part numbers are confirmed for this specific suffix.