Hi,
Thanks for explaining the usage of LPF in PLL. Currently I have another question on it. As the input frequencies to the PD differs, the output of the PD will have many high frequency pulses and eventually feed to LPF. My question is, why did the output voltage of LPF rise as there are pulses feed through it and slowly reduce when the width of the pulses become smaller? The output of the LPF is like a small transient. Thank you.
Thanks for explaining the usage of LPF in PLL. Currently I have another question on it. As the input frequencies to the PD differs, the output of the PD will have many high frequency pulses and eventually feed to LPF. My question is, why did the output voltage of LPF rise as there are pulses feed through it and slowly reduce when the width of the pulses become smaller? The output of the LPF is like a small transient. Thank you.