Appendix A Specifications for VXI-MIO-64E-1
VXI-MIO Series User Manual A-8
National Instruments Corporation
Frequency scalers....................... 10 MHz, 100 kHz
Base clock accuracy...........................±0.01%
Max source frequency........................20 MHz
Min source pulse duration..................10 ns in edge-detect mode
Min gate pulse duration......................10 ns in edge-detect mode
Data transfers.....................................DMA, interrupts, programmed
I/O
TriggersAnalog Trigger
Source................................................ACH<0..63>, PFI0/TRIG1
Level..................................................± full-scale, internal; ±10 V,
external
Slope..................................................Positive or negative (software
selectable)
Resolution..........................................8 bits, 1 in 256
Hysteresis.......................................... Programmable
Bandwidth (-3 dB).............................1.5 MHz internal,
7 MHz external
External input (PFI0/TRIG1)
Impedance.................................. 10 k
Coupling ....................................DC
Protection................................... -0.5 to 5.5 V when configured as
a digital signal;
±35 V when configured as an
analog trigger signal or disabled;
±35 V powered off
Digital Trigger
Compatibility.....................................TTL
Response............................................Rising or falling edge
Pulse width........................................ 10 ns min
VXIbus Trigger
Trigger lines.......................................Supports 5 TTL and 2 ECL
trigger lines