National Instruments NI PCI-6110 User Manual
Page 105
Glossary
G-12
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scan rate
reciprocal of the scan interval
SCANCLK
scan clock signal
SCSI
small computer system interface—a high-speed, peripheral-connect
interface primarily used for hard disks, CD-ROM drives, tape drives,
and other mass-storage devices to PCs
settling time
the amount of time required for a voltage to reach its final value within
specified limits
SFDR
spurious-free dynamic range—the dynamic range from full-scale
deflection to the highest spurious signal in the frequency domain
SI2
sample interval counter
signal conditioning
the manipulation of signals to prepare them for digitizing
SISOURCE
SI counter clock signal
SOURCE
source signal
STARTSCAN
start scan signal
system noise
a measure of the amount of noise seen by an analog circuit or an ADC
when the analog inputs are grounded
T
TC
terminal count—the ending value of a counter
t
d
delay time
t
gh
gate hold time
t
gsu
gate setup time
t
gw
gate pulse width
t
out
output delay time
THD
total harmonic distortion—the ratio of the total rms signal due to
harmonic distortion to the overall rms signal, in decibel or a percentage