Abracon recommends a symmetrical PCB layout with a solid ground plane underneath the oscillator to minimize noise and radiation. The oscillator should be placed as close as possible to the microcontroller or ASIC, and the output should be routed directly to the clock input with minimal trace length and impedance.
To ensure reliable startup, Abracon recommends applying a clean power supply with minimal noise and ripple, and ensuring that the oscillator is properly terminated with a 10kΩ to 20kΩ pull-up resistor on the output. Additionally, the oscillator should be powered up slowly, with a rise time of at least 1ms, to prevent false starts.
The ATFC-0402HQ-3N9B-T is rated for operation from -40°C to +85°C, but Abracon recommends derating the frequency tolerance by 0.05ppm/°C for temperatures above +70°C to ensure reliable operation.
The ATFC-0402HQ-3N9B-T is designed to withstand moderate vibration levels, but Abracon recommends consulting their application notes for vibration-sensitive applications. In general, it's recommended to use a vibration-dampening material, such as a silicone adhesive, to secure the oscillator to the PCB.
Abracon recommends using a TVS (transient voltage suppressor) diode or a dedicated ESD protection device on the oscillator output to protect against electrostatic discharge. The TVS diode should be rated for the maximum output voltage of the oscillator.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
ATFC-0402HQ-3N9B-T Overview
Use the download button to access the ATFC-0402HQ-3N9B-T schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like ATFC-,
or try a keyword search, such as Fixed Inductors
