ADLINK DAQe-2502 - Manual (Page 71)

Appendix 61
Appendix
Waveform Generation Demonstration
Combined with six counters, selectable trigger sources, external
reference sources, and time base, the DAQ-/DAQe-/PXI-2502/
2501 provides the capabilities to generate complex waveforms.
Various modes shown below can be mixed together to generate
waveforms that are even more complex.
Although you can always load a new waveform to generate any
desired waveform, we suggest using hardware capabilities to
maximize the card’s efficiency and flexibility.
Standard Function
Waveforms including sine wave, triangular
wave, saw wave, ramp, etc., can be converted
to Waveform LUT. Using larger waveform
means trading maximum output rate for lower
harmonic distortion.
Arbitrary Function
User-defined arbitrary function without size limit
can be generated. You can also concatenate
various standard functions of same length into
one arbitrary function and setup piece-wise
generation, so each standard function can be
generated in sequence, with a user-definable
intermediate space.
Standard Function w. Frequency Variant
You can alter the frequency of generated wave-
forms by driving DAWR from external signal via
AF0/AF1/SSI. The resultant updating rate
should be kept within 1 MHz.