![background image](http://html.mh-extra.com/html/national-instruments/pxie-6674/pxie-6674_user-manual_709612007.webp)
Figure 2. Functional Overview of the PXIe-6674
CLOCK and
TRIGGER
Routing
PCI Express
Interface
PCI Express
PXI_TRIG<0..7>
CLKOUT
Clock
Generation
CLKIN
AC Coupled
Clock Detector
PXI_CLK10
Clock Generation
PXI Express
PXIe_CLK100
PXIe_DSTARA
Peripheral
CLKIN
CLK10
CLK100
PXIe_DSTARB
Peripheral
PXIe_DSTARC
Peripheral
PFI 0
Threshold
DAC
PFI 0
Driver/
Comparator
Driver/
Comparator
PFI 1
Threshold
DAC
LVDS Driver/
Receiver
PFI 1
PFI 2
Threshold
DAC
PFI 2
Driver/
Comparator
Driver/
Comparator
PFI 3
Threshold
DAC
LVDS Driver/
Receiver
PFI 3
PFI 4
Threshold
DAC
PFI 4
Driver/
Comparator
Driver/
Comparator
PFI 5
Threshold
DAC
LVDS Driver/
Receiver
PFI 5
PFI_LVDS
<0..2>
PFI<0..5>
PXI_STAR
Peripheral
PXIe-6674 User Manual
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© National Instruments
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