Fox Electronics recommends a 4-layer PCB with a solid ground plane, and a separate power plane for the oscillator circuit. Additionally, keep the crystal and capacitors close to the IC, and use a low-impedance path for the clock signal.
To ensure reliable startup, Fox Electronics recommends using a 1-2 kΩ resistor in series with the crystal, and a 10-22 pF capacitor from the XTAL1 pin to ground. Additionally, consider adding a 100-220 nF decoupling capacitor near the IC.
The FX532B-10.000 has a maximum allowable frequency deviation of ±50 ppm over the operating temperature range of -40°C to +85°C.
Yes, the FX532B-10.000 is suitable for battery-powered devices due to its low power consumption of 1.5 μA (typical) and 5 μA (maximum) at 10 MHz. However, ensure proper power management and voltage regulation to maintain the recommended operating voltage range.
To troubleshoot oscillator startup issues, check the crystal and capacitors for correct values and placement, ensure proper power supply and decoupling, and verify the XTAL1 and XTAL2 pins are not loaded or shorted. Also, check for any noise or interference on the clock signal.
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