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AD9680

Question asked by hotmax2828 on Jun 26, 2018
Latest reply on Jun 27, 2018 by UmeshJ

hi 

I have a AD9234 eval board  i want to down convert  a real signal  sampled @320Mhz to base band using NCO and Mixer and get the complex data inside the fpga , the problem is that i can't get the imaginary part (Q component )   always equal to  =0

the register setup is as follow
W 10B 0x3
W 200 0x2   --ddc 0 and ddc 1 are enabled 
W 201 0x1 --decimation ratio =2
W 310 0x43  --real input mixer variable if mode  enable 6db gain

W 311  0x0   --IQ select
W 330 0x43     -- real input mixer variable if mode  enable 6db gain

W 331  0x5   --IQ select

W 314  0x0   --

W 315 0x4  --  set NCO frequency to 80 Mhz

W 334 0x0   --

W 335  0x4  --  set NCO frequency to 80 Mhz

W 300 0x40 --Synchronize the NCO
W 56E 0x10  --
W 570 0x91  --JESD quick setup

is there any register that shall be configured  

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