ADLINK PXI-2502 - Manual (Page 60)

52
• Appendix A
By feeding AFI0/AFI1 with PWM source,
pulse train from VCO, or any
time-varying digital signal,
DAQ/PXI-2500 SERIES is capable of
generating frequency modulated (FM)
waveform.
Since all four channels are synchronized
in a D/A group, precise quadrature
waveform generation is guarantied,
provided the waveform are shifted
90-degree for the other channel. Phase
difference of any degree can also be
setup.
Combined with external High-speed
programmable Digital I/O card,
Phase-Shift-Keying or
Phase-Reversal-Keying can also be
achieved.