ASEKDV-32.768KHZ-LR-T - ABRACON

ASEKDV-32.768KHZ-LR-T 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. A 4-layer PCB with a dedicated ground layer is ideal. Keep the oscillator away from high-frequency signals and ensure a clear return path for the ground connection.
• How do I handle the oscillator's start-up time and stability?
  The ASEKDV-32.768KHZ-LR-T has a typical start-up time of 2-3 seconds. To ensure stability, allow the oscillator to stabilize for at least 5 seconds before using its output. You can also add a power-on reset circuit to ensure a clean start-up sequence.
• What is the recommended drive level for the oscillator's output?
  The ASEKDV-32.768KHZ-LR-T has a CMOS-compatible output that can drive a maximum of 15 pF load capacitance. To ensure reliable operation, keep the output load capacitance below 10 pF and avoid overdriving the output, as this can affect the oscillator's frequency stability.
• How does temperature affect the oscillator's frequency stability?
  The ASEKDV-32.768KHZ-LR-T has a specified frequency stability of ±20 ppm over the operating temperature range of -40°C to +85°C. However, the actual frequency stability may vary depending on the specific application and environmental conditions. Consider using a temperature-compensated oscillator or a more precise timing source if high frequency stability is required.
• Can I use the ASEKDV-32.768KHZ-LR-T in a high-vibration or high-shock environment?
  While the ASEKDV-32.768KHZ-LR-T is designed to be rugged, it's essential to ensure that the oscillator is properly mounted and secured to the PCB to withstand vibrations and shocks. Abracon recommends following the recommended PCB layout and mounting guidelines to minimize the risk of damage or frequency instability.