LMX2541SQE3740E/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2541SQE3740E/NOPB is a PLLatinum frequency synthesizer from Texas Instruments, featuring an integrated VCO and designed for ultra-low noise performance. It operates within a supply voltage range of 3.15 V to 3.45 V and supports input frequencies from 5 MHz to 6 GHz. The device generates output frequencies ranging from 32 MHz to 4 GHz. It utilizes a single circuit configuration housed in a 36-WQFN package with an exposed pad, suitable for surface mount applications. The component functions across a temperature range of -40°C to +85°C and draws approximately 120 mA during operation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a low-noise VCO with an option for external VCO bypass
• Supports high-speed SPI interface for register configuration
• Provides flexible output divider and multiplier capabilities

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication base stations
• Test and measurement equipment clock generation
• Point-to-point microwave links

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix E3740 against official datasheets to confirm the exact factory calibration or binning code. Ensure the NOPB designation confirms lead-free and RoHS compliance status as per current manufacturer standards. Cross-reference the 36-WQFN package dimensions with PCB footprint libraries to guarantee mechanical compatibility before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ultra-low phase noise is critical for system performance. The integrated VCO simplifies design by reducing external component count compared to discrete solutions. Verify that the required output frequency range falls within the 32 MHz to 4 GHz specification. Consider the 120 mA power consumption if thermal management or battery life is a primary constraint in the target application environment.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the LMX2541 family of PLLatinum synthesizers, which are engineered for high-performance RF applications. The series is characterized by its ability to deliver superior spectral purity and flexibility through programmable parameters. It serves as a key building block for generating stable reference clocks in complex radio frequency systems requiring precise frequency synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other LMX2541 variants such as LMX2541SQ2060E/NOPB or LMX2541SQX2690E-NOPB, provided the specific frequency bin matches the application requirements. Verify pinout compatibility and electrical specifications before swapping between different suffixes within the same family.