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need to loopfilter for my application(with PLL ADF4158)

Question asked by wizmy on Jun 20, 2017
Latest reply on Jul 9, 2017 by wizmy

hi. all

my application is FMCW radar.

i have a few questions for PLL ADF4158


---------------- detail spec --------------------------

PLL+VCO(ADF4158 + HMC738)

PLL Ref.clk : 40 MHz

Freq. 20.3~22.3 GHz, Bandwidth 2 GHz

Sweep type : Triangle

Total period : 111.2 us (Up 55.6 us / Down 55.6 us)

IF Freq. : 60 kHz ~ 2.5 MHz



Q.1. Loopfilter RC Value

Loopfilter 3rd order/Passive filter(with fastlock Topology 2. ADF4158 datasheet P.32)

i need to text, image, ADIsimPLL save file.. anything.

Q.2. Calculate Lock-time

What is the Lock-time required for my application?