Triggers, Bus interface, Operational modes – National Instruments PXI NI 5401 User Manual
Page 41: Waveform specifications, Timing i/o, Triggers digital trigger, Rtsi
Appendix A
Specifications
©
National Instruments Corporation
A-3
Waveform Specifications
Memory .................................................. 16,384 16-bit samples
Segment length....................................... 16,384 samples, exact
Segment linking (instruction FIFO) ....... 512 links
Timing I/O
Update clock .......................................... Internal, 40 MHz only
Frequency locking
External reference sources .............. Input connector, RTSI clock line,
or internal
Reference clock frequencies ........... 1 MHz, 5–20 MHz in 1 MHz steps
Frequency locking range................. ±100 ppm
Triggers
Digital Trigger
Compatibility ........................................ TTL
Response ............................................... Rising edge
Pulse width (T
d1
) .................................... 20 ns min
Trigger to waveform
output delay (T
d2
) ................................... 28 sample clocks + 150 ns max
RTSI
Trigger lines .......................................... 7
Clock lines.............................................. 1
Bus Interface
Type ....................................................... Slave
Operational Modes
Type ....................................................... Single, continuous, stepped