Appendix A Specifications
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National Instruments Corporation A-3 DAQArb 5411 User Manual
Analog
Type.............................................7th-order L-C low-pass filter
Passband ripple ............................±2 dB
Waveform SpecificationsMemory
Arb mode. .. .... .. .... .. ..... .. .. .... .. .. .... . 2,000,000, 16-bit samples
DDS mode................................. .. . 16, 38 4, 16- bit sa mp les
Segment length
Arb mode. .. .... .. .... .. ..... .. .. .... .. .. .... . 256 samples min,
multiples of eight samples
DDS mode................................. .. . 16, 38 4 sa mp les , e xa c t
Max segments in waveform memory...5,000
(Arb mode only)
Segment linking (instruction FIFO)
Arb mode. .. .... .. .... .. ..... .. .. .... .. .. .... . 292 links
DDS mode................................. .. . 340 l inks
Segment looping (Arb mode only)
Count .. .. .. .... .. .... .. .. ..... .. .. .... .. .. .... . 65,536 loops
Timing I/OUpdate clock........... .. .. .... ... .. .. .... .. .. .. ... Internal, 40 MHz max
Interval count....... ....... .... ...... .... ... 2–6 5,535
Phase locking
External reference sources............ Inp ut c on ne ctor , RT SI c loc k
line, or internal
Reference clock frequencies.........1 MHz, 5–20 MHz, in 1 MHz
steps
Frequency locking range ....... ....... ±100 ppm