ASV-25.000MHZ-LR-T - ABRACON

ASV-25.000MHZ-LR-T Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the ASV-25.000MHZ-LR-T?
  Abracon recommends a layout with a ground plane underneath the oscillator, and keeping the traces as short as possible to minimize noise and radiation. A 4-layer PCB with a dedicated ground layer is recommended.
• 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 1ms, and a power supply voltage that reaches the minimum specified voltage (1.8V) within 100ms. Additionally, a 10nF to 100nF decoupling capacitor should be placed close to the oscillator.
• What is the maximum operating temperature range for the ASV-25.000MHZ-LR-T?
  The ASV-25.000MHZ-LR-T is rated for operation from -40°C to +85°C. However, Abracon recommends derating the frequency tolerance and stability specifications for operation above +70°C.
• Can I use the ASV-25.000MHZ-LR-T in a design that requires low EMI emissions?
  Yes, the ASV-25.000MHZ-LR-T is designed to meet EMI requirements for most applications. However, Abracon recommends following proper PCB layout and shielding techniques, and using a 0Ω resistor or a ferrite bead in series with the oscillator output to reduce emissions.
• How do I handle the oscillator's output signal in my design?
  The ASV-25.000MHZ-LR-T outputs a CMOS-compatible signal. Abracon recommends using a buffer or a clock distribution chip to drive multiple loads, and ensuring that the output signal is not loaded with excessive capacitance or resistance.