I am designing a wide bandwidth PLL (fout 38.4GHz, external divider-by-32, kVCO 0.6GHz/V, f_pfd=1.2GHz, bandwidth 150MHz) with HMC439 as phase-frequency detector. Can you put some suggestions on how to select the loop filter op-amp? Which op-amp parameters are important (GBW, supply voltage, slew rate)? Or can you suggest one op-amp for my design?
Many thanks and regards,