User manual

Use the Arbitrar
y Function G enerator
The output waveform (MHz)
frequency setting.
AFG trigger output
frequency (MHz).
 4.9 MHz
Signal frequ
ency
>4.9 MHz to 14.7 MHz
Signal frequency / 3
>14.7 MHz to
24.5 MHz
Signal frequency / 5
>24.5 MHz to 34.3 MHz
Signal fre
quency / 7
>34.3 MHz to 44.1 MHz
Signal frequency / 9
Restrictions.
When an output frequency i s
higher than 4.9 MHz, some restrictions exist. A
divided frequency that is lower than 4.9 MHz is
output from th
e AUX OUT port. The AFG trigger
frequency will be limited as shown in the table
to the right.
>44.1 MHz
to 50 MHz
Signal frequency / 11
How to create an arbitrary waveform
You can create the waveform from any of the four internal ARB memories, the four (or two) analog channels, the four (or two)
reference waveforms, the math waveform or the 16 digital channel waveforms. You can also use a .CSV (spreadsheet) file
stored externally or a predefined template (square, sine, ramp, pulse, or noise).
1. Push the AFG button to bring up the AFG
lower menu.
2. On the lower-menu, push Waveform and
turn M ultipurpo se a to select Arbitrary from
the list of waveforms on the resulting pop-up
menu.
Waveform
Arbitrary
Waveform
Settings
Waveform
Edit
Freq.
Ampl.
Offset
100.00kHz
500.00m-
Vpp
0.000 V
Period
10.000V
High
250.00mV
Low –250.
00mV
Output
Settings
3. Push Waveform Settings to set the
frequency, period, amplitude, offset, and high
and low levels.
4. Push Waveform Edit to bring up the
Waveform Edit lower menu. This menu will
let you manipulate existing waveform points,
as well as to add and delete points, and to
edit the voltage level.
For cases with many points to edit, consider
using Tektronix ArbExpress software,
which is available for free download from
www.tektronix.com/software.
Also, use the Waveform Edit menu to create
new arbitrary waveforms in the instrument.
You can do this by loading them from files
or from live channels.
MDO3000 Series Oscilloscopes User Manual 185