National Instruments NI 5401 Manuel D’Utilisation

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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