synchronous high-speed digitizer question

[mhfracis]

I currently use a 6115 card for analog data acquisition.  I'm using this for image capture from ccd cameras.  I use an external clock and trigger.  The 6115 allows you to input your own clock, so when I have a rising edge on the clock, I know it is making the digital conversion at that point.  I've been looking at the high-speed digitizers for a faster and higher resolution replacement, but they don't appear to be synchronous in the way I explain above.  For instance, I've been testing with a pxi-5122.  I believe it uses a phase-lock loop to synchronize what you input with it's internal clock?  So, you can't use an external clock unless it's a multiple of the internal clock?  Does anyone know if the new pxi-5105 works in this way.  Or of any other card that will and faster than 10MS/s?

thanks,

Matt

[50ohmTerminator]

Hey Matt,

Looks like you are doing image acquisition. Have you had a chance to look at the NI Vision boards? They might make things easier for you. You could look at the 1409/1410, which are generic analog frame grabbers or the 1422/1424, which are digital frame grabbers. For more details please click here.

Have a good one.

Regards
Malay Duggar
Applications Engineer
National Instruments.