National Instruments NI PXIe-6672 - Manual (Page 40)

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 NI PXIe-6672 backplane connector ... 5 ns, typical
Asynchronous delay, t
pd
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
accuracy 3
Physical
Chassis requirement ............................... One 3U PXI Express
System Timing Slot
Front panel connectors ........................... SMB 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,
the DDS output inherits the same relative frequency accuracy as the TCXO output.