• Use a connector saver (a replaceable SMA adapter used on test equipment) to connect AO signals to the NI 5641.
  • Terminate AO signals in 50 Ω impedance for best performance.
  • Use external lowpass or bandpass filters when necessary to avoid imaging effects. For DAC update rates of 200 MS/s, images should be less than -50 dBc without any external lowpass filters.