Abracon recommends following a 4-layer PCB stack-up with a solid ground plane on the bottom layer, a signal layer on the second layer, a power plane on the third layer, and a signal layer on the top layer. Additionally, keep the crystal oscillator traces as short as possible and away from noise sources.
To ensure reliable startup, Abracon recommends using a 1 kΩ to 10 kΩ pull-up resistor on the XTIN pin, and a 100 nF to 1 μF capacitor on the XTOUT pin. Also, make sure the power supply is stable and within the recommended operating range.
The PRO-EX-333 is rated for operation from -40°C to +85°C. However, it's essential to note that the oscillator's frequency stability and accuracy may degrade at extreme temperatures.
Yes, Abracon offers custom frequency options for the PRO-EX-333. Contact Abracon's sales team or a authorized distributor to discuss custom frequency requirements and lead times.
Abracon recommends using ESD protection devices, such as TVS diodes or ESD arrays, on the XTIN and XTOUT 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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PRO-EX-333 Overview
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