The NI-5772 clock source controls the sample rate and other timing functions on the device. The following table contains information about the possible NI-5772 clock sources.
Table 1. NI-5772 Clock Sources
|Internal Free-Running Sample Clock
||The internal Sample Clock is free-running.
|Internal Sample Clock PLL On (IoModSyncClock)
||The internal Sample Clock locks to IoModSyncClock, which is provided only though the backplane of NI PXIe-796xR devices.
|Internal Sample Clock PLL On (REF IN)
||The internal Sample Clock locks to an external 10 MHz Reference Clock, which is provided through the REF IN front panel connector.
|External Sample Clock (CLK IN)
||400 MHz to 800 MHz
||An external Sample Clock can be provided through the CLK IN front panel connector.