LMX2541SQ2690E/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2541SQ2690E/NOPB is a PLLatinum frequency synthesizer with an integrated VCO, manufactured by Texas Instruments. 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 output frequency range spans 32 MHz to 4 GHz. Designed for surface mount installation in a 36-WQFN package, the device functions between -40°C and +85°C. It consumes approximately 120 mA of operating current and utilizes silicon technology.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Ultra-low noise PLLatinum frequency synthesizer architecture
• Integrated Voltage Controlled Oscillator (VCO)
• Wide output frequency range: 32 MHz to 4 GHz
• High maximum input frequency capability up to 6 GHz

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication systems
• RF front-end modules
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the manufacturer designation as Texas Instruments, despite the query specifying National Semiconductor, as TI acquired NS. Confirm the suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the specific variant SQ2690 matches the required frequency specifications. Check moisture sensitivity level (MSL 3) requirements for storage and handling prior to assembly.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when ultra-low phase noise performance is critical for RF signal generation. The integrated VCO simplifies design by reducing external component count. Verify that the 3.15 V to 3.45 V supply voltage aligns with system power rails. Consider the 36-WQFN package size for PCB layout constraints and thermal management capabilities within the specified temperature range.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMX2541 series of PLLatinum frequency synthesizers. Other variants in the family include LMX2541SQ2060E/NOPB, which shares similar packaging and electrical characteristics but may differ in specific factory configurations or tuning ranges. The series is designed for high-performance wireless applications requiring precise frequency synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include LMX2541SQ2060E/NOPB. Verify functional equivalence regarding output frequency ranges and pin compatibility before substitution. Cross-reference datasheets to ensure identical package dimensions and electrical parameters.