LMX2324SLBX

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2324 is an obsolete PLLatinum frequency synthesizer designed for RF personal communications, manufactured using TI's ABiC V BiCMOS process. It supports RF operation up to 2.0 GHz with a 32/33 dual modulus prescaler and operates on a supply voltage range of 2.7V to 5.5V. The device features low current consumption, typically 3.5 mA at 3.0V, and includes an internal balanced charge pump providing 4.0 mA output current. It utilizes a three-line MICROWIRE serial interface for programming the R and N counters. The component is available in 16-pin TSSOP and PLGA packages.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a 32/33 dual modulus prescaler for high-frequency RF synthesis up to 2.0 GHz
• Utilizes proprietary digital phase locked loop technique for stable, low noise control signals
• Features a balanced, low leakage internal charge pump with programmable polarity
• Supports asynchronous and synchronous power down modes via hardware pin or serial interface

Clock Generators, PLLs, Frequency Synthesizers Applications

• Cellular Telephone Systems (GSM, NADC, CDMA, PDC)
• Personal Wireless Communications (DCS-1800, DECT, CT-1+)
• Wireless Local Area Networks (WLANs)

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This component is officially classified as obsolete by Texas Instruments. Verify availability through authorized distributors or secondary markets. Confirm that the specific package variant matches design requirements, as production data reflects specifications current as of the final revision date. Ensure compliance with end-of-life handling procedures.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component only if legacy support for 2.0 GHz RF synthesis is required. Evaluate compatibility with existing MICROWIRE interfaces and 32/33 prescaler architectures. Consider thermal management within the specified operating temperature range. Assess whether modern replacements offer superior performance or availability for new designs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The LMX2324 belongs to the PLLatinum family of frequency synthesizers from Texas Instruments. It is part of a series designed for personal communication systems, sharing architectural similarities with other devices like the LMX2320 and LMX2326. The device represents an earlier generation of RF synthesizers utilizing BiCMOS technology before the widespread adoption of newer integrated solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the official documentation. Consult Texas Instruments application notes or distributor databases for recommended upgrades.