National Instruments NI PXIe-6672 PXI Trigger Characteristics, TCXO Characteristics, DDS Characteristics, Physical

Appendix A Specifications
© National Instruments Corporation A-5 NI PXIe-6672 User Manual
PXI Trigger Characteristics
PXI_TRIG <0..7> to
PXI_TRIG<0..7> output skew
at NIPXIe-6672 backplane connector ... 5 ns, typical
Asynchronous delay, tpd
PXI_TRIG <0..7> to
PFI<0..5> output ............................15 to 22 ns, typical
TCXO Characteristics
Frequency...............................................10 MHz
Initial accuracy....................................... ±2.5 ppm
Long-term stability (1 year)1..................±1 ppm
Temperature stability (0 to 55 °C)2........±2 ppm
DDS Characteristics
Frequency range.....................................1 Hz to 105 MHz
Frequency resolution..............................< 0.075 Hz
Frequency accuracy................................Equivalent to PXI_CLK10
accuracy3
Physical
Chassis requirement............................... One 3U PXI Express
System Timing Slot
Front panel connectors...........................S MB male, 50 Ω
Front panel indicators.............................Two tricolor LEDs
(green, red, and amber)
1 Includes stability of TCXO and supporting circuitry.
2 Includes temperature stability of TCXO and supporting circuitry.
3 The DDS frequency inherits the relative frequency of PXI_CLK10. For example, if you route the TCXO to PXI_CLK10,
theDDS output inherits the same relative frequency accuracy as the TCXO output.