lsullivan,
The filters used when I/Q streaming are FIR filters. We use 1 or more filters depending on decimation selected. The design method used is the standard windowed sinc method. The bandwidth and filter order is determined by both the decimation and bandwidth chosen by the user during configuration. Additionally, the frequency/magnitude response of the filters are modified by the IF flatness corrections, which are device specific, providing calibrated I/Q output.
Andrew
