FPXLF143-20 – FOX ELECTRONICS

Overview

The Fox Electronics FPXLF143-20 is a fundamental mode crystal oscillator designed for precise frequency generation at 14.31818 MHz. Its critical operational characteristic lies in its tight frequency tolerance of ±50ppm, ensuring minimal drift in demanding timing applications. A key design consideration for engineers is balancing the 20pF load capacitance against source impedance to maintain optimal Q factor and minimize phase noise, especially when interfacing with high-speed digital logic where spurious oscillations can degrade signal integrity.

Key Features

• Frequency: 14.31818 MHz
• Frequency Tolerance: ±50ppm
• Load Capacitance: 20pF
• Equivalent Series Resistance (ESR): 40 Ohms
• Operating Temperature: -20°C to 70°C
• Package: 4-SMD, No Lead (12.50mm x 4.60mm x 3.70mm)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Clock generation for microcontrollers in embedded systems
• Precise timing reference in communication interfaces
• Frequency stabilization in audio processing circuits
• Reference signal for phase-locked loops (PLLs)