60 Hz to 24 kHz PLL in PCI Express 6341?

[jonpaul]

I currently have circuitry that takes as input a 60 Hz and is a PLL to generate a 24 kHz clock. I'd like to replace this circuitry with my PCI Express 6341. Is this possible? If so, can you point me to some resources to help me acheive my goals? Thanks in advance.

-JP

[JaymeW]

Hi JP, 

If your goal is ultimately to generate a 24 kHz clock pulse, you can certainly do that with your PCIe.  You can find example LabVIEW VIs in the NI Example finder (Help » Find Examples).  Browse to Hardware Input and Output » DAQmx » Generating Digital Pulses.  There are several examples here, but I think that Gen Dig Pulse Train-Buff-Implicit-Cont.vi will likely be a good one for you to start with.  This VI will allow you to generate a digital pulse with a specified Frequency and Duty Cycle.

[jonpaul]

Jayme, thanks for your response.

Is it possible to have it synchronized with a 60 Hz input clock a la a phase locked loop? I want to remove my phase locked loop circuitry. Also, any examples with Measurement Studio?

Thanks again.

-JP

[ie.aleja]

Hello Jonpaul,

When you install the DAQmx drivers you get many examples installed on your computer so if you go to

- Start menu

- All programs

- National Instruments

- NI-DAQ

- Text-Based Code Support.

You can find many examples there.

Regards,

[jonpaul]

I should have been more clear. I was asking for examples that would demonstrate the phase locked loop capability. Nevermind that though. My most important question still remains unanswered.

Question:

Is it possible to replace my 60 Hz input clock / 24 kHz output clock phase locked loop circuitry with the capabilities of my PCI Express 6341? In other words, can I hook up a 60 Hz input digital clock at approx 50% duty cycle and have the 6341 generate a 24 kHz output clock that is in phase with the input?

Thanks.

[ie.aleja]

JP,

You can do this, use the input signal as a trigger, so on every rising edge of the 60 Hz you set one of the counters in your 6341 to generate 400 pulses at 24KHz, and you would make this task retriggerable. That way you make sure that your 24KHz signal will always be in phase with your 60Hz.

Regards,

[NIL1]

Hello

I am Shafique Muhammad

Can I use my PCIe 6341 to generate a waveform just like the waveform obtained at the output of a bridge rectifier. It means the pulsating DC.

[M.J]

Hi Shafique,

Since your question does not seem to be directly related to jonpaul's initial post, could you please create a new forum post so that all questions are effectively separated and therefore get appropriate exposure.