Hi ADI,
I'm doing the dynamic performance(SNR, ENOB etc.) test of AD9083.
The digital signal is normal and the performance is good when the input siganl frequency <60 MHz.
but when the frequency of input signal >60MHz, the decay appears:
what's more, when the input frequency >70MHz, the digitized signal(like white noise) disappears.
I feel there must be some parameters wrong in my configuration, such as 'frequency input bandwidth'.
My configuration:
L = 4,
M = 16,
F = 8,
K = 32,
NP = 16,
N = 16,
S = 1,
CIC bypass,
J dec = 16,
sample rate = 2GSPS,
finmax = 100 MHz,
LPF = 0~800 MHz
Best Regards,
Nan