Product specifications

21
When the measurement delay (or pulse delay) is adjusted, it is crucial
to keep the data acquisition window within the pulses. Unlike previous
examples, the measurement errors may not be obvious due to a few ADC
samples outside of the pulses. Figure 14b shows the measurement errors
caused by improper measurement delay. It is recommended to have enough
timing margin when adjusting IF bandwidth and/or the delays. Approximately
300 ns or greater measurement delay is recommended to account for data
processing and pulse modulation delays as shown earlier in Figure 9. The
chosen IF bandwidth should leave a margin of more than a few internal clock
cycles (50 ns or more) within the pulses.
Figure 14b. Measurement errors caused by improper measurement delay