FQ7050B-10.000 datasheet by Fox Electronics

FQ7050B-10.000 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the FQ7050B-10.000?
  Fox Electronics recommends a 4-layer PCB with a solid ground plane, and a separate power plane for the oscillator circuit. The crystal should be placed as close as possible to the oscillator pins, and the traces should be kept short and wide to minimize noise and radiation.
• How do I ensure the FQ7050B-10.000 oscillator starts up reliably in my design?
  To ensure reliable startup, Fox Electronics recommends a power-up ramp time of at least 1ms, and a power supply voltage that reaches 2.7V within 10ms. Additionally, the oscillator circuit should be decoupled from the power supply with a 10nF capacitor, and the crystal should be driven with a CMOS-compatible signal.
• What is the maximum operating temperature range for the FQ7050B-10.000?
  The FQ7050B-10.000 is rated for operation from -40°C to +85°C, but Fox Electronics recommends derating the frequency by 0.05% per degree Celsius above 70°C to ensure reliable operation.
• Can I use the FQ7050B-10.000 in a design that requires a different output frequency?
  Yes, the FQ7050B-10.000 can be used in designs that require different output frequencies by using an external divider or multiplier circuit. However, Fox Electronics recommends consulting with their application engineers to ensure the oscillator is properly configured and compensated for the desired frequency.
• How do I troubleshoot issues with the FQ7050B-10.000 oscillator not starting up or running at the correct frequency?
  Fox Electronics recommends checking the power supply voltage, decoupling capacitors, and PCB layout for any issues. Additionally, the oscillator circuit should be checked for any signs of damage or contamination, and the crystal should be verified to be properly seated and connected.