Henry-cool
Junior Member level 3
Hi~~
I designed a forth active RC lowpass filter
I use two second active RC filter acheive it , -3dB cutoff frequency is 600KHz
When I designed filter in schematic, it works well.
After I finished Layout, I simulated RCX(RC Extraction).
But, The results is not good.
Filter has 2~3dB peaking near 600kHz Frequency.
I don't know how I should fix my layout.
Plz let me know how to approach the solution.
I designed a forth active RC lowpass filter
I use two second active RC filter acheive it , -3dB cutoff frequency is 600KHz
When I designed filter in schematic, it works well.
After I finished Layout, I simulated RCX(RC Extraction).
But, The results is not good.
Filter has 2~3dB peaking near 600kHz Frequency.
I don't know how I should fix my layout.
Plz let me know how to approach the solution.