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Triggers, Bus interface, Operational modes – National Instruments PXI NI 5401 User Manual

Page 41: Waveform specifications, Timing i/o, Triggers digital trigger, Rtsi

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Appendix A

Specifications

©

National Instruments Corporation

A-3

NI 5401 User Manual

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