LMX2487SQ/NOPB

The LMX2487SQ/NOPB is a high-performance frequency synthesizer and phase-locked loop (PLL) device manufactured by Texas Instruments. It is designed for applications requiring precise frequency generation and low phase noise, making it suitable for a variety of communication systems, including wireless and satellite communications.

Key Features:

1. Frequency Range: The LMX2487SQ/NOPB operates over a wide frequency range, typically from 100 MHz to 2.5 GHz, allowing it to be used in various RF applications.

2. Low Phase Noise: One of the standout features of this device is its low phase noise performance, which is critical for maintaining signal integrity in high-frequency applications. This is particularly important in systems where signal clarity and quality are paramount.

3. Integrated VCO: The device includes an integrated voltage-controlled oscillator (VCO), which simplifies design and reduces the need for external components. This integration helps in minimizing the overall footprint of the circuit.

4. Programmable Dividers: The LMX2487SQ/NOPB features programmable dividers that allow for flexible frequency division, enabling the generation of various output frequencies from a single reference frequency.

5. SPI Interface: The device is controlled via a Serial Peripheral Interface (SPI), which allows for easy programming and configuration of the synthesizer settings. This interface facilitates communication with microcontrollers or other digital devices.

6. Power Supply: It operates on a single supply voltage, typically in the range of 3.3V to 5V, making it compatible with a wide range of power supply systems.

7. Package Type: The LMX2487SQ/NOPB is available in a compact QFN (Quad Flat No-lead) package, which is advantageous for space-constrained applications and provides good thermal performance.

8. Temperature Range: The device is designed to operate over an extended temperature range, making it suitable for industrial and automotive applications.

Applications:

• Wireless Communication: Used in transceivers for cellular, Wi-Fi, and other wireless communication systems.
• Satellite Communication: Ideal for frequency generation in satellite transponders and ground stations.
• Test Equipment: Employed in signal generators and other RF test equipment where precise frequency control is required.
• Instrumentation: Utilized in various measurement and instrumentation applications that require accurate frequency synthesis.

Conclusion:

The LMX2487SQ/NOPB from Texas Instruments is a versatile and high-performance frequency synthesizer that meets the demands of modern communication systems. Its combination of low phase noise, integrated VCO, and flexible programming options makes it an excellent choice for engineers looking to implement reliable and efficient frequency generation in their designs.