LMX2336USLEX

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2336USLEX is a dual frequency synthesizer from the PLLatinum family, manufactured by National Semiconductor. It operates at a maximum output frequency of 2.8 GHz and is designed for RF personal communications applications. The device integrates a low-noise VCO, dual modulus prescaler, and charge pump within a compact SOT-23 package. Key electrical parameters include an operating supply voltage range typically centered around 3.3V and a reference input frequency capability up to 40 MHz. The component utilizes a serial control interface for configuration.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual frequency synthesizer architecture supporting high-frequency operation up to 2.8 GHz
• Integrated low-noise Voltage Controlled Oscillator (VCO) and dual modulus prescaler
• Compact SOT-23 surface-mount packaging suitable for space-constrained designs
• Serial control interface for simplified system integration

Clock Generators, PLLs, Frequency Synthesizers Applications

• RF personal communication systems
• Wireless local loop equipment
• Portable radio transceivers

Clock Generators, PLLs, Frequency Synthesizers Part Context

The LMX2336USLEX belongs to the PLLatinum series of low-power frequency synthesizers. This family includes variants such as the LMX2306 (550 MHz), LMX2316 (1.2 GHz), and LMX2326 (2.8 GHz). The USLEX suffix denotes the specific tape-and-reel packaging format and temperature grade for this component variant.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include the LMX2326 for equivalent 2.8 GHz performance. Lower frequency alternatives in the series are the LMX2316 (1.2 GHz) and LMX2306 (550 MHz). Verify pin compatibility and control interface requirements when substituting.