National Instruments 5411 User Manual

Page 73

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Glossary

© National Instruments Corporation

G-7

DAQArb 5411 User Manual

Kword

1,024 words of memory

L

LabVIEW

laboratory virtual instrument engineering workbench

latch

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

latched digital I/O

a type of digital acquisition/generation where a device or module
accepts or transfers data after a digital pulse has been received. Also
called handshaked digital I/O.

LED

light-emitting diode

level DAC

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

low-pass filter

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

LSB

least significant bit

M

m

meters

M

(1) Mega, the standard metric prefix for 1 million or 10

6

, when used

with units of measure such as volts and hertz; (2) mega, the prefix for
1,048,576, or 2

20

, when used with B to quantify data or computer

memory

marker

a digital signal that is generated on a pin on the digital I/O connector at
a requested point in the waveform buffer; this happens while the analog
waveform is being generated at the DAQArb 5411 Arb output connector

MARKER

marker output signal

marker offset

the position, in number of samples, from the start of the waveform
buffer at which the marker is requested

master/slave

locking the DAQArb 5411 clock in frequency and phase to an external

phase locking

reference clock source

MB

megabytes of memory

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