2 GS/s, 12-Bit PXI IF Digitizer—The PXIe‑5624 is optimized for superheterodyne receiver architectures. It features an onboard digital downconverter, which converts IF signals to I/Q data. As a result, you can use the PXIe‑5624 either as part of a PXI Vector Signal Analyzer or as a stand-alone IF digitizer.