Solution
The analog output update rate is determined by front panel controls in the AO . The formula for determining the rate is as follows:
AO Update Rate = ((Desired Frequency) * ((Samples Per Buffer) / (Cycles Per Buffer))
This can be understood by noting (Samples Per Buffer) / (Cycles Per Buffer) = Samples Per Cycle. Because the Digital to Analog Converter (DAC) must output N Samples Per Cycle the AO Update Rate will be Desired Frequency * N.
For example, if the Desired Frequency is set to 1000 Hz, Samples per Buffer is 250, and Cycles per Buffer is 5 the following equation results:
AO Update Rate (Samples per Second) = 1000 Cycles per Second * (250 Samples per buffer / 5 Cycles per Buffer)
Which breaks down to:
AO Update Rate (Samples per Second) = 1000 Cycles per Second * 50 Samples per Cycle
Then:
AO Update Rate = 50,000 Samples per Second = 50 kHz