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Transcript
The Arbitrary/Function Generator:
Basic Features & Functions
1
Generating a Signal: Easy as 1, 2, 3
1
Choose your signal type
2
Define your signal parameters
3
Select the Run mode
3
– The AFG3000 has a dedicated front
panel button for common signal types.
– Less common signals are selected from
the on-screen menu once you select the
signal category.
2
– When you select a signal type, the
relevant signal parameters are shown on
the display and a menu of controls
appears at the right side of the screen.
– The AFG3000 has dedicated front panel
buttons for setting common signal
parameters.
– Choose Continuous mode to
continuously generate your signal as
specified.
– Choose Modulation mode to add
amplitude, frequency or phase
modulation to your signal.
Output
On
Default Setup
Tip: To return the signal generator to a known state, press the Default button.
Tip: You must press the Output On button to turn on the output. To protect your
circuit, the output is off by default and only activated when you are ready for a
signal.
The Arbitrary/Function Generator:
Basic Features & Functions
Common Signal Types
 Sine Wave: A curved wave shape defined
by the mathematical sine function.
 Square Wave: A wave shape consisting of
repeating square pulses.
 Sawtooth Wave: A waveform that ramps
up slowly, then falls off quickly.
Pulse Characteristics
 Rise Time: Amount of time required for a pulse edge to transition
from low to high level.
 Fall Time: Amount of time required for a pulse edge to transition
from high to low level.
 Pulse Width: Amount of time the pulse takes to go from low to
high and back to low again, measured at 50% of full voltage.
 Triangle Wave: A waveform with
symmetrical rise and fall times.
 Pulse Wave: A waveform with a fast rising
edge, a period of time at a constant
amplitude, and a fast falling edge.
Waveform Characteristics
 Amplitude: The voltage strength of
a waveform.
 Frequency: The number of times a
full waveform cycle repeats in one
second, measured in Hertz (Hz).
Frequency equals 1 divided by
period.
 Phase: Time placement of a cycle
relative to a reference waveform or
point in time.
Waveform Modulation
 Amplitude Modulation: A type of analog
modulation in which amplitude variations
embed lower-frequency information into a
carrier signal of higher frequency.
 Frequency Modulation: A type of analog
modulation in which frequency variations
embedded lower-frequency information into a
carrier signal of higher frequency.
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Copyright Notice and Reproduction Rights ©2009 Tektronix, Inc. This document may be reprinted, modified and distributed in whole or in part for the limited purpose of
training users or prospective users of Tektronix oscilloscopes and instrumentation. Any reproduction must include a copy of this page containing this notice.
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