AST3TQ-T-25.000MHZ-50-C - ABRACON

AST3TQ-T-25.000MHZ-50-C Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Abracon recommends a symmetrical PCB layout with a ground plane underneath the oscillator to minimize noise and radiation. The oscillator should be placed as close as possible to the microcontroller or clock input.
• How do I handle the oscillator's output signal in my circuit?
  The output signal of the AST3TQ-T-25.000MHZ-50-C is a CMOS-compatible square wave. It can be directly connected to a microcontroller or clock input, but it's recommended to add a series resistor (e.g., 1 kΩ) to limit the current and prevent damage to the oscillator or downstream components.
• What is the operating temperature range for this oscillator?
  The AST3TQ-T-25.000MHZ-50-C is specified to operate from -40°C to +85°C, but it's recommended to derate the frequency tolerance and stability over temperature. Consult the datasheet for specific derating curves.
• Can I use this oscillator in a high-vibration or high-shock environment?
  The AST3TQ-T-25.000MHZ-50-C is designed to meet the requirements of MIL-STD-883, Method 2002.5 for vibration and MIL-STD-883, Method 2001.5 for shock. However, it's recommended to perform additional testing and validation to ensure the oscillator meets the specific requirements of your application.
• How do I ensure the oscillator starts up correctly and quickly?
  The AST3TQ-T-25.000MHZ-50-C has a built-in startup circuit that ensures reliable startup. To ensure quick startup, make sure the power supply is stable and within the recommended voltage range (1.8 V to 3.3 V). Also, ensure the oscillator is properly decoupled from the power supply with a 10 nF to 100 nF capacitor.