LMX2531LQ1910E

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2531LQ1910E is a high-performance PLL frequency synthesizer manufactured by National Semiconductor, now part of Texas Instruments. It operates within an output frequency range of approximately 553 MHz to 3132 MHz and supports a reference input frequency up to 80 MHz. The device integrates a voltage-controlled oscillator (VCO) and is housed in a 36-terminal QCCN package measuring 6 x 6 mm with a height of 0.80 mm. It functions on a nominal 3 V supply, operating reliably between -40 °C and +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated Voltage-Controlled Oscillator (VCO) for compact system design
• Output frequency range from 553 MHz to 3132 MHz
• Reference clock input frequency up to 80 MHz
• Low power consumption with 32 mA typical operating supply current

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication infrastructure
• RF transceiver local oscillators
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the manufacturer source, as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix '1910' matches the required frequency band or configuration variant against official TI documentation. Ensure the LLP-36 package dimensions align with PCB footprint requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a wide output frequency range up to 3.1 GHz is required with integrated VCO capabilities. Compare the 32 mA supply current against system power budgets. Ensure the 3 V nominal supply voltage is compatible with the system's power rails and that the -40 °C to +85 °C temperature range meets environmental specifications.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMX2531 family of high-performance frequency synthesizers. Variants such as LMX2531LQ1650E and LMX2531LQ2265E share similar packaging and core architecture but may differ in specific frequency tuning ranges or internal calibration settings defined by the suffix codes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other LMX2531 variants like LMX2531LQ1650E or LMX2531LQ2265E, provided their specific frequency ranges cover the application needs. Verify pin compatibility and register configurations before substitution.