National Instruments NI 781xR - Manual (Page 29)

Appendix A Specifications
NI 781xR User Manual A-2 ni.com
Reconfigurable FPGA
Number of logic slices
NI 7811R .........................................5,120
NI 7813R .........................................14,336
Equivalent number of logic cells
NI 7811R .........................................11,520
NI 7813R .........................................32,256
Available embedded RAM
NI 7811R .........................................81,920 bytes
NI 7813R .........................................196,608 bytes
Timebase.................................................40, 80, 120, 160, or 200 MHz
Timebase reference sources....................Onboard clock, phase-locked to
PXI 10 MHz clock
Timebase accuracy
Onboard clock .................................±100 ppm, 450 ps jitter
Phase locked to
PXI 10 MHz clock...........................Adds 350 ps jitter, 300 ps skew
Additional frequency-dependent jitter
40 MHz ............................................None
80 MHz ............................................400 ps
120 MHz..........................................720 ps
160 MHz..........................................710 ps
200 MHz..........................................700 ps
Bus Interface
NI 781xR.................................................Master, slave