A-2
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Appendix A
Specifications
PFI<0..2>
Output Characteristics
Frequency range................................................DC to 50 MHz
Output impedance .............................................50 Ω, nominal
Output coupling ................................................DC
Output voltage levels
Output high ...............................................1.2 V min, 1.6 V typical for 50 Ω load to ground
2.6 V min, 3.3 V typical for 1 MΩ load
Output low ................................................0.1 V max, 0 V typical for 50 Ω load to ground
0.1 V max, 0 V typical for 1 MΩ load
Absolute maximum applied voltage
1
................0 to 4.4 V
Output-to-output skew, asynchronous
PXI_STAR to PFI routes
2
.................................<400 ps, typical
Output-to-output skew,
other asynchronous routes ................................<1.5 ns, typical
Output-to-output skew, synchronous routes .....<2 ns, typical
Synchronized trigger clock
to out time, t
co
...................................................10 ns, max (relative to CLKOUT when
configured to route PXI_CLK10)
Output current ...................................................±48 mA, max
Square wave rise/fall time
(10 to 90%) for 50 Ω load.................................<1 ns, typical
Input Characteristics
3
Frequency range................................................DC to 50 MHz
Input impedance................................................1 kΩ, nominal
Input coupling ...................................................DC
Nominal voltage level.......................................0 to +3.3 V, +5 V tolerant
Absolute maximum input voltage
...................-0.5 V to +6.0 V
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
Applies to asynchronous routes from a single PXI_STAR input to multiple PFI outputs.
3
For PFI 0 these characteristics apply when the line is configured as a digital input. They do not apply when
configured as an IRIG-B AM input.
