Table Of Contents

Clocking

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    Last Modified: May 17, 2017

    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
    Clock Source Frequency[1] Description
    Internal Free-Running Sample Clock 800 MHz The internal Sample Clock is free-running.
    Internal Sample Clock PLL On (IoModSyncClock) 800 MHz 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) 800 MHz 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.
    • 1 You can use TIS to acquire up to 1.6 GS/s. Refer to the FlexRIO Help for more information about configuring your NI 5772 CLIP.

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