robismyname
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I managed to get my PLL to lock from frequncy 2410MHz - 2448MHz (see attached-pure sinusoid carrier)
My desired locking frequencies are 2260MHZ-2343MHz. The PLL doesn't lock at these frequencies for some reason (I attached a screenshot that shows how the the frequency response looks at 2300MHz)
My loop filter is second order designed for 1/10th the phase detect frequency
20,000kHz/10 = 2MHz. I attached the loop filter design as well.
My VCO (ROS-2500-2319+) freq range is from 2066MHZ-2646MHZ.
Im using the ADF4252 PLL.
Any ideas on what the problem may be?
My desired locking frequencies are 2260MHZ-2343MHz. The PLL doesn't lock at these frequencies for some reason (I attached a screenshot that shows how the the frequency response looks at 2300MHz)
My loop filter is second order designed for 1/10th the phase detect frequency
20,000kHz/10 = 2MHz. I attached the loop filter design as well.
My VCO (ROS-2500-2319+) freq range is from 2066MHZ-2646MHZ.
Im using the ADF4252 PLL.
Any ideas on what the problem may be?