ACHL-40.000MHZ-EK - ABRACON

ACHL-40.000MHZ-EK Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the ACHL-40.000MHZ-EK crystal oscillator?
  Abracon recommends a layout with a ground plane underneath the crystal, and to keep the traces as short as possible to minimize parasitic inductance and capacitance. A 4-layer PCB with a dedicated ground plane is ideal.
• How do I ensure the ACHL-40.000MHZ-EK oscillator starts up reliably in my design?
  To ensure reliable startup, Abracon recommends a power-up ramp time of at least 1ms, and a power supply voltage that is within the recommended operating range. Additionally, the oscillator should be decoupled from the power supply with a 10nF to 100nF capacitor.
• What is the maximum operating temperature range for the ACHL-40.000MHZ-EK crystal oscillator?
  The ACHL-40.000MHZ-EK has an operating temperature range of -40°C to +85°C, but it's recommended to derate the frequency tolerance by 5ppm/°C for temperatures above 70°C.
• Can I use the ACHL-40.000MHZ-EK in a design that requires a higher drive level than the recommended 1µW?
  While the ACHL-40.000MHZ-EK is rated for 1µW drive level, it can be driven up to 10µW with reduced reliability. However, exceeding the recommended drive level may reduce the oscillator's lifespan and affect its performance.
• How do I handle the ACHL-40.000MHZ-EK's sensitivity to electrostatic discharge (ESD)?
  Abracon recommends handling the ACHL-40.000MHZ-EK with ESD-sensitive precautions, such as using an ESD wrist strap or mat, and storing the devices in anti-static packaging. The device should also be soldered using a low-ESD soldering iron.