Keysight 81160A - Page 628

Appendix
628
ADC Input Range
ADC Input Voltage
Phase Offset
ADC Reading
#1 #2
Phase Offset
Phase Offset
1#2#
1#
SampleSample
Sample
tPhaseOffse


The calculated phase offset will then be applied to the DDS when
processing the Start signal.
While waiting for the start signal, the DDS sends the waveform data that
corresponds to the start phase (usually 0) to the waveform DAC. The first
waveform data that is sent after receiving the start signal uses the phase
that corresponds to Phase Increment  Phase Offset.