TClk Multidigitizer Synchronization
Learn how TClk synchronization integrates the 10 MHz backplane clock, PXI trigger lines, and onboard trigger clock to synchronize measurements. In addition, see how it automatically configures using the three TClk VIs. With a PXI arbitrary waveform generator, this program generates a sine wave. Then two PXI digitizers sample the signal. Finally, the program computes the phase and timing difference between the signals from the digitizers.
Application Software: LabVIEW Full Development System 7.1
Hardware Group: High-Speed Digitizers (Scopes)
Hardware Model: PXI-5122
Driver: NI-DAQmx 7.2, IVI Compliance Package 2.2, NI-FGEN 2.2, NI-SCOPE 2.7
Reader Comments | Submit a comment »
This example was useful in measuring
the synchronization separation (in
picosecs) for the board set (NI PCI
5124) when modified to use an external
clock (e.g. not PXI boards). This
example does not help with manual
adjustment to adjust synchronization.
The example showed a sync difference
of ~500 ps. According to the
documentation this can be manually
adjusted to ~10 ps.
- Dina Demara, Ball Aerospace. firstname.lastname@example.org - Dec 18, 2008