LMX2322SLBX

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2322SLBX is a monolithic frequency synthesizer from the PLLatinum series, designed for RF personal communications. It integrates a dual modulus prescaler and charge pump within a compact surface-mount package. The device supports selectable synchronous and asynchronous power-down modes to minimize current consumption during idle periods. It features a TRI-STATE mode for the charge pump and selectable current levels to optimize phase noise and lock time performance in wireless systems.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates dual modulus prescaler for flexible frequency division ratios
• Supports selectable synchronous and asynchronous power-down modes
• Features TRI-STATE charge pump output for system flexibility
• Includes selectable charge pump current levels for optimization

Clock Generators, PLLs, Frequency Synthesizers Applications

• RF personal communication systems
• Wireless local loop applications
• Frequency synthesis for mobile handsets

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the National Semiconductor PLLatinum family of low-power frequency synthesizers. The LMX2322 variant specifically targets 2.0 GHz applications for personal communications. Texas Instruments acquired National Semiconductor, and the device documentation reflects this transition while maintaining the original functional specifications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The LMX2324 is a documented similar part within the same PLLatinum family offering comparable functionality for RF personal communications. Verify pin compatibility and specific frequency range requirements when substituting.