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National Instruments PXI NI 5401 User Manual

Page 52

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Glossary

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National Instruments Corporation

G-5

NI 5401 User Manual

I

I/O

input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces

IFIFO

instruction FIFO

instruction FIFO

the FIFO that stores the waveform generation staging list

K

k

kilo—the standard metric prefix for 1,000, or 10

3

, used with units of

measure such as volts, hertz, and meters

K

kilo—the prefix for 1,024, or 2

10

, used with B in quantifying data or

computer memory

kS

1,000 samples

Kword

1,024 words of memory

L

latch

a digital device that stores digital data based on a control signal

level DAC

the calibration DAC used to change the voltage levels to another device

linking

linking different buffers stored in the waveform memory

looping

repeating the same buffer in the waveform memory. This method of
waveform generation decreases memory requirements.

lowpass filter

a circuit used to smooth the waveform output and removed unwanted high
frequency contents form the signal