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Appendix A
Specifications
PCI-4451/4452 User Manual
Output signal range, software-selectable
Attenuation
Linear
1
10
100
FIFO buffer size......................................512 samples
Data transfers ..........................................DMA, programmed I/O, Interrupt
Transfer Characteristics
Offset (residual DC) ...............................±5 mV max, any gain
Gain (amplitude accuracy)......................±0.1 dB, f
Voltage Output Characteristics
Output impedance...................................22
Frequency response ................................±0.2 dB, 0 to 23 kHz, 51.2 kS/s
3 dB bandwidth.....................................0.492 f
Output coupling ......................................DC
Short-circuit protection...........................yes (+ and may be shorted
Outputs protected....................................±DAC0OUT, ±DAC1OUT
Idle channel noise
Log
0 dB
20 dB
40 dB
DACxOUT, 4.55 k to AOGND
together indefinitely)
91 dB f
measurement bandwidth
A-6
Full
-scale Range
±10.0 V
±1.00 V
±0.100 V
= 1 kHz
out
between + and
s
, DC to 23 kHz
s
© National Instruments Corporation
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