Hi, No more changes that I know of. There are different configuration files for trim for the different Nyquist zones, but if you are using the Quick Setup tab of the SPI GUI and choosing the Nyquist zone on that tab, then the SPI GUI will load the appropriate config file for the Nyquist zone. If you were to poke around in the folder of config files you would see a folder for RF45, another for RF44, RF42, etc. In each of these there are subfolders for programming for Bypass mode, the DDC modes, and a subfolder called NL Config. The the NL Config folder there are three separate config files for the different Nyquist zones. If you use the Quick Setup tab then the correct one is loaded automatically. If you are manually loading the config files individually, the you would need to load the appropriate NL config file for the desired Nyquist zone. In this ADC, there is some digital logic for interleaving correction, and yet some other digital logic called the Non-linearity correction. The interleaving correction is not Nyquist zone dependent other than setting that Nyquist zone selection field in the register space. But the non-linearity correction logic is more dependent on input frequency, and there are different trim files specifically for the NL config that are for each Nyquist zone. Regards, Richard P.
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