Appendix A Specifications
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National Instruments Corporation A-7 PCI-4451/4452 User Manual
Dynamic Characteristics
Image-free bandwidth............................ DC to 0.450 fs
Image rejection.......................................90 dB, 0.550 fs < fout < 63.450 fs
Spurious-free dynamic range................. 90 dB, DC to 100 kHz
THD....................................................... −80 dB; −90 dB for f out < 5 kHz
orsi gnal < 1 Vrms
IMD........................................................−90 dB (CCIF 14 kHz + 15 kHz)
Crosstalk (channel separation)...............−80 dB, DC to 23 kH z
Phase linearity........................................±1°
Interchannel phase..................................±1°
(same configuration
both output channels)
Interchannel gain mismatch................... ±0.1 dB, for all attenuations
(same configuration
both output channels)
Signal delay............................................34.6 ±0.5 sample periods, any
sample rate (time from when
digital data is expressed to when
analog signal appears at output
terminals)
Digital I/O
Number of channels............................... 8 input/output
Compatibility......................................... TTL/CMOS
User.book Page 7 Tuesday, April 14, 1998 10:20 AM