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
Triggers
Analog 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
Ω
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
