Abracon recommends a symmetrical PCB layout with a solid ground plane, and the oscillator should be placed as close as possible to the microcontroller or IC. A minimum of 2-layer PCB is recommended, with the oscillator on the top layer and the ground plane on the bottom layer.
To ensure reliable startup, Abracon recommends using a decoupling capacitor (e.g., 10nF to 100nF) between the VCC pin and GND, and a series resistor (e.g., 1kΩ to 10kΩ) between the output pin and the load. Additionally, consider using a voltage regulator to provide a clean power supply.
The ABC2-20.000MHZ-4-T has a specified frequency tolerance of ±20 ppm over the operating temperature range of -40°C to +85°C. This means the frequency can deviate by up to ±40 Hz from the nominal frequency of 20.000 MHz due to temperature changes.
The ABC2-20.000MHZ-4-T is designed to operate in environments with moderate vibration. However, if your application involves extreme vibration, Abracon recommends considering a more ruggedized oscillator or taking additional measures to secure the oscillator and PCB.
Abracon recommends using ESD protection devices, such as TVS diodes or ESD arrays, on the oscillator's input and output pins to prevent damage from electrostatic discharge. Additionally, follow proper handling and storage procedures to minimize the risk of ESD damage.
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ABC2-20.000MHZ-4-T Overview
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