Pfi <0, Input characteristics, Pfi <0 > input characteristics – National Instruments NI PXIe-6672 User Manual
Page 38
Appendix A
Specifications
© National Instruments Corporation
A-3
Square wave rise/fall time (10 to 90%)
Low drive ........................................ 0.5 ns min,
2.5 ns max
High drive ....................................... 0.5 ns min,
2.5 ns max
PFI <0..5>
Input Characteristics
Frequency range ..................................... DC to 105 MHz
Input impedance ..................................... 50
Ω, nominal, or 1 kΩ ±10%,
|| 35 pF, software-selectable
Input coupling ........................................ DC
Voltage level .......................................... 0 to 5 V
Absolute maximum input voltage
1
......... ±5.25 V, max
Input threshold
Voltage level ................................... 0 to 4.3 V, software-selectable
Voltage resolution........................... 16.8 mV (8 bits)
Error ................................................ ±40 mV
Hysteresis ............................................... 50 mV
Asynchronous delay, t
pd
PFI <0..5> to
PXI_TRIG <0..7> output ................ 19 to 26 ns, typical
PFI <0..5> to
PXI_STAR <0..12> output ............. 10 to 19 ns, typical
Synchronized trigger
input setup time, t
setup
2
........................... 16.5 ns, typical
Synchronized trigger
input hold time, t
hold
2
.............................. –9.9 ns, typical
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 at the backplane connector. When PLL is used to route CLKIN to PXI_CLK10_IN, CLKIN and
PXI_CLK10 are phase locked with ±1 ns max phase difference. Refer to the
, for more details.