作者 Ryang 於 2019年01月28日 22:20:01
Shows that they use the scope with assume 100 MHz bandwidth. Because of this the clock signal looks sinusoidal.
They have to use a scope with at least 500 MHz bandwidth to look at 100 MHz clock frequency.
And they should use an active probe.
In addition the setup enough good for measurement of a high frequency device.
They should use a solder-down on board with proper bypass capacitors.