Introducing the LMX2491RTWR from Texas Instruments

The LMX2491RTWR is a high-performance, low-noise frequency synthesizer system from Texas Instruments, designed to meet the precise clock requirements of complex RF systems. With its advanced features and versatile functionality, the LMX2491RTWR is an excellent choice for a wide range of applications, including wireless infrastructure, radar, test and measurement equipment, and satellite communication systems.

Key Features

• Wide Frequency Range: The device supports an extensive frequency range, accommodating various system design needs. It operates at a frequency range from 10 MHz to 14 GHz, making it suitable for a broad spectrum of RF applications.
• Low Phase Noise: The LMX2491RTWR boasts exceptional phase noise performance, which is crucial for maintaining signal integrity and ensuring high-quality RF transmission.
• High Resolution: It features a high-resolution fractional-N PLL with a 128-bit numerically controlled oscillator (NCO), enabling fine frequency tuning and allowing precise control over the output signal.
• Programmable: The device includes a powerful delta-sigma modulator and phase detector, providing programmable options for bandwidth, phase noise, and output power level, thus offering flexibility to optimize the system performance.

Advanced Functionality

The LMX2491RTWR is equipped with advanced modulation capabilities, supporting both frequency modulation (FM) and phase modulation (PM) directly. This feature simplifies the design of complex modulation schemes and reduces the need for additional components. Additionally, the device has an integrated voltage-controlled oscillator (VCO), further reducing the component count and simplifying the overall system design.

Easy Integration

Housed in a compact 24-pin WQFN package, the LMX2491RTWR is designed for easy integration into a variety of circuit designs. The device is supported by Texas Instruments' comprehensive design simulation tools, such as the PLLatinum Sim software, which assists designers in simplifying the development process and accelerating time to market.

Reliability and Support

As with all Texas Instruments products, the LMX2491RTWR is manufactured to the highest quality standards, ensuring reliability and performance in the most demanding environments. TI provides extensive technical support and documentation, making it easier for engineers to implement the device in their designs.