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National Instruments Corporation I-3 PCI-4451/4452 User Manual
configuration
device configuration, 2-2
effect of sampling and update rates, 3-13
connectors. See I/O connectors.
CONVERT* signal
digital I/O pin assignments (table), 4-6
digital I/O signal summary (table), 4-8
timing connections, 4-17
customer communication, xi, C-1toC-2
D
DAC
mute feature, 6-13
signal spectra in DAC (figure), 6-11
theory of operation, 6-12
+DAC0OUT signal
analog I/O pin assignments (table), 4-3
analog I/O signal summary (table), 4-4
analog output signal connections,
4-11 to 4-12
−DAC0OUT signal
analog I/O pin assignments (table), 4-3
analog I/O signal summary (table), 4-4
analog output signal connections,
4-11 to 4-12
+DAC1OUT signal
analog I/O pin assignments (table), 4-3
analog I/O signal summary (table), 4-4
analog output signal connections,
4-11 to 4-12
−DAC1OUT signal
analog I/O pin assignments (table), 4-3
analog I/O signal summary (table), 4-4
analog output signal connections,
4-11 to 4-12
data acquisition timing connections. See
acquisition timing connections.
DC input coupling, 3-3
DDS (direct digital synthesis)
technology, 3-12
delta-sigma modulation
analog input circuitry, 6-8
analog output circuitry, 6-10
configuration issues, 3-13
triggering effect, 3-7
device configuration, 2-2
sampling rate and undersampling, 3-13
DGND signal
analog I/O pin assignments (table), 4-3
analog I/O signal summary (table), 4-4
digital I/O pin assignments (table), 4-6
digital I/O signal connections, 4-12
digital I/O signal summary (table), 4-8
timing connections, 4-14
DIFF configuration, 4-10
DIFF input mode, 3-3
DIFF output mode, 3-5
digital function (block diagram), 3-1
digital I/O
high impedance state (note), 3-10
overview, 3-10
pin connections (figure), 4-5
signal connections, 4-12 to 4-13
specifications, A-7 to A-8
digital I/O signal descriptions
pin assignments (table), 4-6 to 4-7
pin connections (figure), 4-5
signal summary (table), 4-8
digital power connections, 4-14
digital trigger specifications, A-9
DIO<0..7> signal
digital I/O pin assignments (table), 4-6
digital I/O signal connections,
4-12 to 4-13
digital I/O signal summary (table), 4-8
direct digital synthesis (DDS)
technology, 3-12
documentation
conventions used in manual, x
National Instruments documentation, xi
organization of manual, ix-x
User.book Page 3 Tuesday, April 14, 1998 10:20 AM