A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the signal traces short and away from the power plane to minimize noise and radiation.
Use a heat sink with a thermal conductivity of at least 1 W/m-K and ensure good airflow around the device. Also, consider derating the device's power consumption at high temperatures.
Use a pi-filter configuration with a common-mode choke and capacitors to filter out high-frequency noise. Ensure the filter is designed to meet the specific EMI requirements of your application.
Check the oscillator's supply voltage, ensure the oscillator pins are not loaded, and verify the oscillator frequency using an oscilloscope. Also, check for any noise or interference on the oscillator pins.
Use a serial interface (e.g., SPI or I2C) to program the device's internal registers. Ensure the programming voltage and clock frequency meet the device's specifications.
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