LMX2364TMX/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2364TMX/NOPB is a fractional-N frequency synthesizer manufactured by Texas Instruments, designed for high-performance wireless communication systems. It integrates a low-noise phase-locked loop (PLL) with a voltage-controlled oscillator (VCO) and a programmable reference divider. The device operates within an output frequency range of 10 MHz to 5.8 GHz, supporting flexible channel spacing configurations. Key electrical parameters include a supply voltage range of 2.7 V to 3.6 V and a typical current consumption of 95 mA. It features a serial control interface for register configuration and is housed in a compact 24-pin QFN package suitable for surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a wideband VCO covering the 10 MHz to 5.8 GHz spectrum for broad application compatibility.
• Supports fractional-N synthesis architecture to enable fine channel resolution without compromising loop bandwidth.
• Includes an on-chip charge pump and reference divider for simplified external component requirements.
• Features a serial digital interface for straightforward microcontroller or DSP integration.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless local area network (WLAN) transceivers
• Point-to-point microwave radio systems
• Software-defined radio platforms
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the 'TMX' designation indicates tape-and-reel packaging for automated assembly. Cross-reference the full part number against the latest datasheet revision to ensure pinout and electrical characteristics match the design intent before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a wide tuning range up to 5.8 GHz is required alongside low phase noise performance. Consider the 24-pin QFN package constraints for thermal management and PCB layout. Evaluate the power supply rejection ratio requirements against the system's noise floor. Ensure the available reference clock frequency aligns with the internal divider capabilities defined in the specification sheet.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the LMX23xx family of fractional-N synthesizers from Texas Instruments. It shares architectural similarities with other members like the LMX2369 but offers specific frequency coverage optimized for certain ISM bands and wireless standards. The family is characterized by integrated VCOs and low-power operation compared to discrete PLL solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same package and pinout may include other LMX23xx variants such as the LMX2369, provided the frequency range and phase noise specifications meet the design requirements. Verify functional compatibility through detailed parameter comparison rather than assuming interchangeability across different series.