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Appendix A
Specifications
A-4
ni.com
Output Characteristics
Frequency range .....................................DC to 100 MHz
Output impedance...................................50
Ω
±5%
Output coupling ......................................DC
Voltage level...........................................1.6 V into 50
Ω
;
3.3
V into open circuit
Absolute maximum input voltage
1
System powered off.........................±7 V, max
System powered on..........................–7 V to +5.5 V, max
Synchronized trigger clock
to out time, t
CtoQ
2
....................................10 ns
Output-to-output skew, synchronous......500 ps
PXI_STAR Trigger Characteristics
PXI_STAR<0..12> to
PXI_STAR<0..12> output skew
at NI 6653 backplane connector .............400 ps
3
Asynchronous delays, t
pd
PXI_STAR<0..12> to
PFI <0..5> output.............................7.5 to 13 ns
PXI_STAR<0..12> to
PXI_TRIG<0..7> output..................13 to 19 ns
PXI Trigger Characteristics
Asynchronous delay, t
pd
PXI_TRIG<0..7> to
PFI <0..5> output.............................11 to 16 ns
1
Stresses beyond those listed can cause permanent damage to the device. Exposure to absolute maximum rated conditions for
extended periods of time can affect device reliability. Functional operation of the device outside the conditions indicated in
the operational parts of the specifications is not implied.
2
Relative to PXI_CLK10.
3
This specification applies to all synchronous routes to the PXI_Star lines, as well as asynchronous routes from the PFI inputs
to the PXI_Star lines.