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nyquist zone handling

Category: Datasheet/Specs
Product Number: AD9081

It is mentioned in the user guide that AD9081 is designed to work in a single nyquist zone. How will the device then handle signals having center frequency at fs/2 and say 200 mhz bandwidth ( fs/2 +/- 200Mhz ). Is there any way to make the device work. can the sampling rate be cut down during runtime only when this particular frequency is selected so that the nyquist zone can be shifted. please help as it is critical.