CSA309-14.31818MABJ-UB – CITIZEN

Overview

The Citizen CSA309-14.31818MABJ-UB is a fundamental mode crystal resonator operating at precisely 14.31818 MHz, essential for establishing stable clock references in digital systems. Its critical operational characteristic lies in its tight frequency tolerance of ±30ppm, ensuring minimal drift and predictable timing. A key design consideration for this through-hole component is managing parasitic inductance and capacitance, particularly in high-speed applications where these can degrade signal integrity, necessitating careful PCB layout and decoupling strategies to achieve optimal performance within its -10°C to 60°C operating range.

Key Features

• Frequency: 14.31818 MHz
• Frequency Tolerance: ±30ppm
• Load Capacitance: 18pF
• Equivalent Series Resistance (ESR): 50 Ohms
• Operating Temperature: -10°C to 60°C
• Dimensions: 3.00mm Dia x 8.80mm L (Through Hole)

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 legacy microcontroller peripherals (e.g., UART, timers)
• Reference frequency for phase-locked loops (PLLs) in audio processing
• Timing stabilization in embedded control systems
• Frequency division for low-power digital signal processing