Clocking

The NI-5734 clocks control the sample rate and other timing functions on the device. Table 4 contains information about the possible NI-5734 clock resources.

Table 4. NI-5734 Clock Sources
Clock Configuration Supported Sample Rates External Clock Type External Clock Frequency Description
Internal Clock PLL Off 120 MS/s — — The internal VCXO acts as a free-running clock.
Internal Clock PLL On (IoModSyncClk) 120 MS/s — 10 MHz The internal VCXO locks to IoModSyncClk (Sync Clock), which is provided only through the backplane of supported devices.
Internal Clock PLL On (CLK IN) 120 MS/s Reference clock 10 MHz The internal VCXO locks to an external Reference clock, which is provided through the CLK IN front panel connector.
External Clock (CLK IN) The supported sample rate is equal to the external clock frequency. Sample clock Min = 50 MHz Max = 120 MHz An external Sample clock can be provided through the CLK IN front panel connector.
Note Specifications for the NI-5734 adapter modules were characterized only at the maximum sample rates.
Note For more information about configuring clocks, refer to the respective CLIP Help section for your device in the NI FlexRIO Help.