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Why did ADF4350 give an unstable output?

Question asked by Assassin_qiu on Jul 29, 2013
Latest reply on Sep 13, 2013 by icollins

We have already configured ADF4350,

R0: 0x6720000

R1: 0x8008009

R2: 0xD028F42

R3: 0x4B3

R4: 0x80803C

R5: 0x580005

the muxout is set into R div, and the output goes well(the PFD is 2MHz), but the RFout is unsteady, sometimes the spectrum analyzer display 3.3G, but sometimes there is noting. FPGA chip and ADF4350 are divided into separated boards., we use Dupont Line to connect them