WC38F-32.768KHZ - ABRACON

WC38F-32.768KHZ 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 minimum of 10 mil clearance around the device is recommended to prevent electromagnetic interference.
• How do I ensure the oscillator starts up reliably in my design?
  To ensure reliable startup, Abracon recommends a power-up ramp time of at least 1 ms/V, and a power supply voltage that reaches the minimum specified operating voltage (1.8V) within 10 ms. Additionally, a 10 nF to 100 nF decoupling capacitor should be placed close to the oscillator.
• What is the maximum allowable frequency deviation for this oscillator?
  The WC38F-32.768KHZ has a maximum allowable frequency deviation of ±20 ppm over the operating temperature range of -40°C to 85°C. This deviation is due to the crystal's natural frequency variation with temperature.
• Can I use this oscillator in a high-vibration environment?
  The WC38F-32.768KHZ is designed to operate in environments with moderate vibration levels. However, for high-vibration applications, Abracon recommends using a more ruggedized oscillator or taking additional measures to secure the device, such as using a vibration-dampening material or a more robust PCB design.
• What is the recommended storage temperature range for this oscillator?
  Abracon recommends storing the WC38F-32.768KHZ in a dry, non-conductive environment at a temperature range of -40°C to 125°C. Storage outside this range may affect the oscillator's performance or reliability.