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Access to sample clock

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#1 Chris Dancer

Chris Dancer
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Posted 04 February 2013 - 12:09 PM

When doing streamed analog input on the U3 (or U6) is it possible to get access to the sample clock, or a clock signal which is guaranteed to be of the same frequency as the sample rate? I'm thinking of the possibility of adding some hardware (counter, RAM, DAC) so I can do a simultaneous analog output and input.

#2 LabJack Support

LabJack Support
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Posted 04 February 2013 - 04:08 PM

U3/U6/UE9: The timers are based on the same clock as streaming, so if you use PWM or FreqOut mode and set the frequency the same as stream it will be exactly the same. Might have to look at how the phase compares to what you want.

U6/UE9: If you use extended channels the proper MIO lines will be toggled. This is a trick you could use to get a clock output:


UE9: You can output the stream clock:


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