关于电源线噪声对有源晶振干扰(EMI),解释如下:
Remarks on noise management for power supply line
It is not recommended to insert filters or other devices in the power supply line as a counter measure for EMI noise reduction. This may cause high-frequency impedance of the power supply line and negatively affect stable oscillation.
不建议通过在电源线路中加入滤波器或其他设备来减少EMI噪声,因为这可能会导致电源线的高频阻抗,从而降低有源晶振输出时钟信号的稳定性。
When using this measure please evaluate the circuitry and device behavior in the circuit to verify and effects on oscillation. Start up time (0 % VCC to 90 % VCC) of power source should be more than 150 s.
若一定要使用以上对策,请对电路稳定性进行充分评估,以验证其对(有源晶振输出时钟信号)振荡稳定性的影响。电源的启动时间(从0% VCC到90% VCC)应大于150秒。