CSTCR4M19G55-R0 - Murata Electronics

CSTCR4M19G55-R0 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Murata recommends a symmetrical PCB layout with a ground plane underneath the crystal oscillator to minimize noise and radiation. A minimum of 1mm clearance around the device is also recommended.
• How do I handle the crystal oscillator during reflow soldering?
  Murata recommends using a peak reflow temperature of 260°C (500°F) with a dwell time of 30 seconds or less to prevent damage to the device. A nitrogen atmosphere is also recommended to reduce oxidation.
• What is the maximum operating temperature range for this device?
  While the datasheet specifies an operating temperature range of -40°C to 85°C, Murata recommends derating the frequency tolerance by 0.05ppm/°C for temperatures above 70°C to ensure optimal performance.
• Can I use this crystal oscillator in a high-vibration environment?
  Murata recommends using a vibration-resistant mounting method, such as a rigidly mounted PCB or a vibration-dampening material, to minimize the effects of vibration on the crystal oscillator's performance.
• How do I troubleshoot issues with the crystal oscillator's frequency accuracy?
  Murata recommends checking the PCB layout, soldering quality, and nearby component placement to ensure they are not affecting the crystal oscillator's performance. Additionally, measuring the oscillator's frequency using a high-precision frequency counter can help identify any issues.