I was looking at the schematic for the small USRP B205-mini SDR from Ettus. I can't seem to find any switchable analog anti-aliasing filter on the input of the chip, or anything resembling a filter for that matter.
This would mean that the filtering is done inside the chip. But how? When using software like GNU Radio, you can basically choose an arbritary sample rate within the IC's specification. Does the chip have a huge filterbank for filtering the input that is switched in, depending on the sample rate, or how does it eliminate anti-aliasing?