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Rochester Electronics LMX2487ESQ/NOPB Environmental and export classification status description

Overview The Texas Instruments LMX2487ESQ/NOPB is a high-performance, low-power integer-N frequency synthesizer. It is designed to generate various frequencies for applications such as wireless communication systems, satellite communications, and instrumentation. The device is capable of providing accurate frequency outputs and offers excellent phase noise characteristics, making it suitable for demanding RF applications. Functions 1. Frequency Synthesis: The LMX2487 can generate frequencies in a wide range, allowing for versatile applications across different RF bands. 2. Integer-N Phase-Locked Loop (PLL): The chip operates based on an integer-N architecture, providing a stable output frequency that locks onto an input reference signal. 3. Programmable Output Dividers: The synthesizer features programmable dividers, allowing users to adapt the output frequency as needed. 4. Low Phase Noise: It features ultra-low phase noise, which is critical for maintaining signal integrity in high-frequency applications. 5. Integrated Reference Generation: It can work with an external reference clock, offering flexibility in design and implementation. Applications 1. Wireless Communication Systems: Utilized in base stations and mobile infrastructure for generating carrier frequencies. 2. Satellite Communications: Helps in synthesizing the necessary frequency channels for communication links. 3. Test Equipment: Provides precise frequency generation for signal analyzers and other measurement equipment. 4. Micro-controllers and Embedded Systems: Used for generating clock signals in various embedded applications. 5. Consumer Electronics: Can be found in devices requiring frequency tuning and modulation. Alternative Components 1. LMX2572: A widely used PLL frequency synthesizer with similar features but enhanced performance specifications and functionality. 2. ADF4351: A versatile silicon-based synthesizer from Analog Devices, designed for wide-band RF applications, featuring a more complex architecture. 3. Si5351A: A versatile clock generator from Silicon Labs, designed for lower-frequency applications but provides similar functionality for frequency synthesis. 4. MAX2870: A frequency synthesizer from Maxim Integrated, with applications spanning cellular, Wi-Fi, and Bluetooth systems. Embedded Modules - Texas Instruments provides evaluation modules such as the EVM-LMX2487, which allows developers and engineers to prototype and test designs using the LMX2487 IC. - Third-party development boards that integrate LMX2487 with microcontrollers or FPGA boards for easy implementation in embedded systems. Related Questions & Answers Q1: What is the typical power supply voltage for the LMX2487ESQ/NOPB? A1: The LMX2487 typically operates with a supply voltage of 3.3V or 5V, which can be configured based on the specific requirements of the application. --- Q2: How can the output frequency of the LMX2487 be programmed? A2: The output frequency is programmed via a serial interface, typically using either SPI or I²C communication protocols, allowing for flexible control in various applications. --- Q3: What are the key advantages of using the LMX2487 in RF applications? A3: Key advantages include its low phase noise performance, wide operating frequency range, flexible programming capabilities, and reduced power consumption compared to similar devices. --- Q4: Can the LMX2487ESQ/NOPB generate frequencies in the GHz range? A4: Yes, the LMX2487 can generate frequencies in the GHz range, making it suitable for high-frequency RF and microwave applications. --- Q5: Is there a design kit available for the LMX2487? A5: Yes, TI offers an evaluation module (EVM) for the LMX2487, which developers can use for prototyping and testing in their designs, along with comprehensive documentation and design resources.