I am using an AD8036 clamping amplifier in this scheme
It is used to clamp a square wave with boundaries +3.8V and +1.2V at 9KHz. Output is connected to a UMJ-123-D14-G VCO. This is the output I get:
Now I got very strange rising edge and falling edge.
Could someone please explain the reason and give me some advise to solve this problem? I need high speed, high accuracy on timing (low jitters of rising and falling) and very stable voltage step. Change another chip is also appreciable.